Jump to content

thibaultron

NRG Member
  • Posts

    2,675
  • Joined

  • Last visited

Reputation Activity

  1. Like
    thibaultron got a reaction from Mahuna in Going From A 2D Drawing To A 3D Printed Part Tutorial using SketchUp   
    Part 16C
     
    As I mentioned earlier, Shapeways has a page that shows all your models, so that you can order more parts, and you can also make your models available to the public. I am not sure what the later entails, maybe a subject for a future post.
     
    Here is a sample of my page, with the address highlighted. The page is a private page that I have to log into, in the future I plan to make some of these public, but that will be a while.
     
    You will get your own page, once you start submitting projects.
     

     
    Every time you upload a file, it will be placed on your models page, so you will have to periodically clean out your test files. You can see some of the files from making this article, and some from my ongoing 1/64th scale version. Notice that if you submit the same file, with the same name, more than once, you will get multiple instances of it in your model list (last two entries in this list). Be sure to name your final file a unique name, to avoid confusion.
     

     
    What do the particle limits on minimum printing thicknesses mean on a model?
     
    On my 1/32nd scale winches, the minimum is a little more than 3/8” in full size. For my model I choose ½” thick webs on the legs (vertical and horizontal). The free standing gear brace is 1” scale thick. It could have been printed as thin as about 0.8 scale inches, if necessary. The crank handle also shown below was able to be printed with scale 1 ½” diameter handle shafts and 1” diameter handles.
     

     
    For the 1/32nd scale parts I was able to print them as separate pieces, except for the nuts which I had to put on a sprue, and the end of the drum and the clutch. These parts were too small to print individually. The large nuts are 2” square, with a 1” diameter hole (scale sizes).
     

     
    For the final printed version, I combined four winches into the file for printing. This cost little more than printing 2 winches (number required for model), and allowed spare parts when assembling the winches for the model. This turned out to be a good move, as one of the crank handles vanished into the black hole in my floor, while I was priming a set for the pictures in this article.
     
    For the 1/32nd scale winches, I will use drill rod for the axles and support rods. On the 1/64th scale winches, the drum axle is printed into the parts, and drill rod will be used again for the support rods.
     

     
    I had to make some compromises for the 1/64th scale parts. The minimum web thickness for the legs had to be increased to 0.9” and the one handle attached to the complex leg had to be made thicker. I increased to thickness on the outside edges, to make it easier to sand them down closer to scale. I also had to attach the rest of the smaller parts to a sprue. Even in this small size, I was able to put a hole in the larger nuts. It is under size, but will serve as a drill guide for bringing them to the needed scale 1” diameter.
     

     
    The axle shafts are printed as part of the assemblies, and the gear is attached to the leg. Attaching the gear still allowed for printing it the scale size.
     
    The feet for the legs are separate parts here, this makes sanding to thin the leg webs, later, easier.
     
    The drum parts, back of the legs, and the handles have recesses in them to fit the printed axles.
     
    Yes, one leg is missing; I deleted it from the drawing, so that the remaining parts could be displayed larger.
     
    This ends this series. I hope that some of these hints will help you in your endeavors.
     
    For those of you who may want further explanations, of how I drew the parts, and the history behind them, check out my Carrie Fisher build log.
     
    Feel free to ask questions, or if you run into a problem drawing your parts, maybe I can help.
  2. Like
    thibaultron got a reaction from JerryTodd in Going From A 2D Drawing To A 3D Printed Part Tutorial using SketchUp   
    Part 16B
     
    One thing that can keep your part from printing, is that it is too big to physically fit on the printing bed. The Bounding Box requirement is what determines this. Selecting that text will display your part, as it will fit inside the machine. At least most of the time the box will be shown, if not, you just have to check which of the axis may be too long, if the check fails. Another Bounding Box problem may be that there are parts, in the file, that are too small to be printed individually. I discussed this in an earlier section.
     
    If you will be printing multiple parts in the same file, looking at this will show you roughly how many you can fit in one print. Each file that you have printed has a $5 setup fee, so if you can fit multiple parts in each file, you only have to pay for the additional material costs.
     

     
    Now we need to check the Wall Thickness requirement, before we try to print the part. Select that text and the window below will be displayed.
     

     
    The minimum thickness limits are shown, as well as a graphic of the part. Green means good, but we need to inspect it closer.
     
    For one thing that sheet on the bottom is back. This will have to be corrected before the final part is ready.
     
    Looking more closely at the part there is another problem.
     

     
    There is a defect at one of the braces, shown by an extra nub/flash on the brace, and the red color. The red means that the part may be too thin. All these are probably caused by those interior walls.
     
    After cleaning everything up I came out with this for the final part. I combined two frame sets into one file (four frames total) to save setup costs.
     

     

     
    Looking at the scaling sheet, the four frames will cost.
     

     
    For an example of a failed part, I chose one of the other materials that the part was too thin to be printed in.
     

     

     
    It fails the wall thickness requirement.
     

     
    Some sections are thick enough (green), some are of questionable thickness (yellow), and most of it is just too thin (red).
     
    After these tests pass, there is a manual check that Shapeways performs after you make your first order of the parts. If these checks pass your parts are printed. If they find problems they will notify you, and give you the options of either having your money refunded, or to have the parts printed anyway, so that you can see what the results are.
     
    Here are some pictures of the printed winch parts. This is as good as I could photograph them. To get these pictures I had to film using my magnifying lens lamp and some zooming in with the camera, to even begin to see them.
     
    1/32nd scale parts as they arrived.
     

     
    1/64th scale parts.
     

     
    The 1/32nd scale parts primed.
     

     

     
    Notice that even the teeth on the 6” diameter 18 tooth gear are sharp. Much better than I could ever hope to make.
     

     
    You can see some roughness on the vertical surfaces due to printing the part in layers, but a little sanding will smooth them out. The horizontal surfaces are smooth.
     
    I have not had the frames printed yet. I’m still working on the 1/64th parts, and funds are a little tight right now.
     
  3. Like
    thibaultron got a reaction from druxey in Going From A 2D Drawing To A 3D Printed Part Tutorial using SketchUp   
    Part 16A
     
    Now we finally get to send something to the printer’s!!
     
    We have our STL file from Part 15, and this post will show the process of sending it to the printer to be checked for printability.
     
    Shapeways has a site where you can upload your drawing, have it checked for printability, be given the cost, and then order your part(s).
     
    Below is the opening screen, with the address circled. They have a page on their site where you can see what you have downloaded previously, and order more parts if you need to.
     

     
    Select the Upload button, and the screen to select which file you want checked will open.
     

     
    Select the file before you select a measurement unit, or you will not be able to select a file.
     
    Click on the SELECT FILE button, navigate to your STL file, select it and open it.
     

     
    The window will show what file has been selected
     

     
    Now you can select your unit of measure. In my case it is inches.
     

     
    The Shapeways printers are metric machines, and they prefer that you use metric for your model. You can use inches, without problems. When you scale the drawing, as shown later, the displayed measurement may be slightly different than the one you entered, due to the internal conversion to metric, but it will be undetectable in the finished model. Generally the difference is in the hundredths to thousandths of an inch. If it is more than this, rescale the part, or restart the download process.
     
    Select the UPLOAD button, and your file will be placed into the system. First a screen showing you that the file is being loaded will pop up.
     

     
    After the file is loaded the software will display the scaling screen with the values at zero.
     

     
    After some time, depending on your file size, or how busy they are, the window will display a scaled value. I assume that they roughly scale it to fit in their printer volume.
     

     
    As the given measurements are unlikely to match what you want, you need to rescale the part. Give it a few moments after the initial scale is displayed before you go to the rescaling screen. If you click too soon, you will generate an error. If this happens exit the window and try again. Sometimes I’ve had to restart the whole process.
     
    Select the SCALE button.
     
    The window below will be displayed.
     

     
    Notice that the unit’s defaults to CM, if you are using another type, select that first, then enter your scale measurement. The available units are shown below.
     

     
    I am using inches. Almost all my models will be based on US ships, or older European ones, before metrification, so I will probably always use inches.
     
    Now enter the scaled value for one of the dimensions. In this case, and generally, I’m going to use the X axis length. You can use any axis that will scale well.
     

     
    In 1/32nd scale the dredge frame comes out to about 2.25 inches long. For this post I did not take the time to calculate a more precise measurement. The other axis measurements will automatically be rescaled, and the scale factor will be displayed.
     
    Select the SAVE button, and the first screen will be displayed again, and after some more time, the new dimensions will be shown.
     

     
    As I stated earlier, the disadvantage of using inches, is that some small difference between what you entered, and the new measurement may occur. In this case I get 2.252 inches. Unless you are making parts for a nuclear reactor, it makes no noticeable difference in the finished part.
     
    The columns below the scale display show the various materials you can print your model in, whether your model is acceptable in that material, and the cost to print it. Shipping is extra, but if you submit several files at the same time, they will combine shipping.
     
    For our parts we will almost always need to use the materials that print the finest, the Frosted Ultra and Extreme detail plastics. I’m not sure what the detail definition difference is between the materials, but I use the Extreme, which has the finest detail. The cost difference is minimal, so I have not tried the Ultra Detail material.
     
    The picture below shows the screen of the progress to the checking. The Auto Checks column will say Loading until the checks for that material are finished. The checking for the Frosted Detail material generally takes the longest.
     

     
    The picture shows that the software has already determined that there are problems with printing it using the Metallic Plastic material. You can also see how much it will cost to print in each material, assuming that it passes the requirements.
     
    When the checks for each material are completed, a Passed, or View Issues result will be shown. For the dredge frame, either Frosted Plastic material can be printed.
     

     
    If you select View 3D Tools, a window showing the detailed results is displayed.
     

     
    For these parts, everything checks out, but you need to look further at the Wall Thickness requirement. There can be hidden problems, that while allowing it to be printed, might have to be corrected for a good detailed part.
     
  4. Like
    thibaultron got a reaction from JerryTodd in Going From A 2D Drawing To A 3D Printed Part Tutorial using SketchUp   
    Part 15C
     
    Now we have to save the part to an STL file, the program converted it to its native format when it was opened.
     
    Select the file in the right hand window, then right click on it. The menu below will open, select Export, then as STL.
     

     

     
    Select the menu item.
     
    The window below will open. Notice that the program used the same file name as originally opened, for the first part of the new file name, then it added its “(repaired)” text at the end. Rename, if desired, then select Save.
     

     
    The window below will be displayed, select Export.
     

     
    You can now close the program. Select No for saving the drawing as a netfabb project.
     

     
    The next post will be the process of importing the STL file to the Shapeways site, and checking it for errors that might affect or prevent printing of your part.
  5. Like
    thibaultron reacted to dgbot in Going From A 2D Drawing To A 3D Printed Part Tutorial using SketchUp   
    Thank you for this tutorial Ron.  I still remember when I was attending a club meeting when a member brought in some items that were 3D printed.  Bur the main problem is the cost of owning one.  You have taken the mystery out of it.  
    David B
  6. Like
    thibaultron got a reaction from mtaylor in Going From A 2D Drawing To A 3D Printed Part Tutorial using SketchUp   
    Your welcome. Now I can get back to building the model they were designed for. Finally at the point I can move my workbench Model Railroad layout combo into the new section of the shop, and start using the workbench again.
  7. Like
    thibaultron got a reaction from dgbot in Going From A 2D Drawing To A 3D Printed Part Tutorial using SketchUp   
    Your welcome. Now I can get back to building the model they were designed for. Finally at the point I can move my workbench Model Railroad layout combo into the new section of the shop, and start using the workbench again.
  8. Like
    thibaultron got a reaction from druxey in Going From A 2D Drawing To A 3D Printed Part Tutorial using SketchUp   
    Part 16B
     
    One thing that can keep your part from printing, is that it is too big to physically fit on the printing bed. The Bounding Box requirement is what determines this. Selecting that text will display your part, as it will fit inside the machine. At least most of the time the box will be shown, if not, you just have to check which of the axis may be too long, if the check fails. Another Bounding Box problem may be that there are parts, in the file, that are too small to be printed individually. I discussed this in an earlier section.
     
    If you will be printing multiple parts in the same file, looking at this will show you roughly how many you can fit in one print. Each file that you have printed has a $5 setup fee, so if you can fit multiple parts in each file, you only have to pay for the additional material costs.
     

     
    Now we need to check the Wall Thickness requirement, before we try to print the part. Select that text and the window below will be displayed.
     

     
    The minimum thickness limits are shown, as well as a graphic of the part. Green means good, but we need to inspect it closer.
     
    For one thing that sheet on the bottom is back. This will have to be corrected before the final part is ready.
     
    Looking more closely at the part there is another problem.
     

     
    There is a defect at one of the braces, shown by an extra nub/flash on the brace, and the red color. The red means that the part may be too thin. All these are probably caused by those interior walls.
     
    After cleaning everything up I came out with this for the final part. I combined two frame sets into one file (four frames total) to save setup costs.
     

     

     
    Looking at the scaling sheet, the four frames will cost.
     

     
    For an example of a failed part, I chose one of the other materials that the part was too thin to be printed in.
     

     

     
    It fails the wall thickness requirement.
     

     
    Some sections are thick enough (green), some are of questionable thickness (yellow), and most of it is just too thin (red).
     
    After these tests pass, there is a manual check that Shapeways performs after you make your first order of the parts. If these checks pass your parts are printed. If they find problems they will notify you, and give you the options of either having your money refunded, or to have the parts printed anyway, so that you can see what the results are.
     
    Here are some pictures of the printed winch parts. This is as good as I could photograph them. To get these pictures I had to film using my magnifying lens lamp and some zooming in with the camera, to even begin to see them.
     
    1/32nd scale parts as they arrived.
     

     
    1/64th scale parts.
     

     
    The 1/32nd scale parts primed.
     

     

     
    Notice that even the teeth on the 6” diameter 18 tooth gear are sharp. Much better than I could ever hope to make.
     

     
    You can see some roughness on the vertical surfaces due to printing the part in layers, but a little sanding will smooth them out. The horizontal surfaces are smooth.
     
    I have not had the frames printed yet. I’m still working on the 1/64th parts, and funds are a little tight right now.
     
  9. Like
    thibaultron reacted to mtaylor in Going From A 2D Drawing To A 3D Printed Part Tutorial using SketchUp   
    Ron,
     
    This is a great tutorial.  Thanks for sharing and removing the mystery of 3-D printing.
  10. Like
    thibaultron reacted to ArtB169 in Whaleboat kit - Amati vs Model Shipways vs Blue Jacket   
    Thanks to both of you.  Sounds like the Model Shipways kit is the best choice.  
     
    John, I had come across your Morgan website previously; your build is superb.  Looking at the photos of her finished in the sunlight (and having been aboard her) I'd think I was looking at the real thing if I didn't know they were model shots.
     
    Art
  11. Like
    thibaultron got a reaction from Canute in Whaleboat kit - Amati vs Model Shipways vs Blue Jacket   
    Found the article on the Morgan whaleboat. http://www.thenrg.org/resources/The_Journal/574/57-4%20NRJ%20Morgan%20Whaleboat.pdf
  12. Like
    thibaultron got a reaction from Canute in Whaleboat kit - Amati vs Model Shipways vs Blue Jacket   
    The Charles Morgan whaleboat does have a build log on this site.
  13. Like
    thibaultron got a reaction from Canute in Whaleboat kit - Amati vs Model Shipways vs Blue Jacket   
    The Amati kit and the Model Shipways kit are of two different styles of whale boat.
     
    The Amati is not of a boat use on a larger sailing ship. It is a model of a Tancook Whaler, a type of fishing boat use on Tancook Island in Canada.
     
    The Model Shipways kit is of a different style, used on those larger whalers. Artesania Latina makes a kit of a boat also used on larger sailing whalers, in this case specifically the Charles W. Morgan, a ship that still exists in the Mystic Seaport Museum. Both the Artesania Latina and MS kits are models of actual boats used. I'm not sure if the Amati kit is from a real boat, or only of the general type.
     
    The Artesania Latinai kit has some mistakes in its design, as compared to the boat used on the Morgan. The hull and most of it are correct. I can not remember the article exactly, but the biggest mistake is the shape of the rudder. I think the build log is on this site, but an internet search should find it. This kit is actually less detailed than the MS kit. If I remember the build correctly, the author added a lot of scratch built details.
     
    The MS kit comes with an entire bound printed step by step book, on building the kit, not just their normally good stapled instructions.
     
    I have the Amati kit, the Artesania Latina kit, and in the past have had the MS kit, which I stupidly sold. The MS kit is much better.
     
    Both Artesania Latina, and Amati are known for questionable historic accuracy, but the Artesania Latina, is very close, and the Amati looks to be quite close to drawings I have seen in Chappele's books.
     
    From what I can see of the Bluejacket kit (I really wish they had more and larger pictures of their kits), it looks to be excellent also, but I have not seen the kit in person, only web pictures. They have an excellent reputation, and I do own some of their kits.
     
    If you want a model of the boat used on the Morgan, go with the Artesania Latina kit, otherwise, I would go with the MS kit. If you want one of the Tancook type, the Amati is the choice, but will need detailing, on the interior.
     
    Looking at the MS and BJ sites, the MS kit is 24" long 1/16 scale. The BJ kit is 10" long and 1/32 scale (it says 1/3 scale, but I doubt that the real boat was only 30" long). As both kits seem to be assembled stick by stick, I'd again recommend the MS kit, there is a lot of very small pieces in both, and the larger kit would make it easier to handle those parts. Depends on your skill level, desire for a challenge, and display space.
     
    The Artesania Latina kit is 1/25 scale, according to the article I saw. Depends on which site you look at, and the actual scale is not listed on the box. The Amati is also about 1/24, or at least falls in that range according to the general dimensions for this type.
     
    The two US manufacturers have a much better reputation than the other two. I normally avoid the European manf. but bought those kits after checking to see if they were accurate.
  14. Like
    thibaultron got a reaction from druxey in Going From A 2D Drawing To A 3D Printed Part Tutorial using SketchUp   
    Part 16C
     
    As I mentioned earlier, Shapeways has a page that shows all your models, so that you can order more parts, and you can also make your models available to the public. I am not sure what the later entails, maybe a subject for a future post.
     
    Here is a sample of my page, with the address highlighted. The page is a private page that I have to log into, in the future I plan to make some of these public, but that will be a while.
     
    You will get your own page, once you start submitting projects.
     

     
    Every time you upload a file, it will be placed on your models page, so you will have to periodically clean out your test files. You can see some of the files from making this article, and some from my ongoing 1/64th scale version. Notice that if you submit the same file, with the same name, more than once, you will get multiple instances of it in your model list (last two entries in this list). Be sure to name your final file a unique name, to avoid confusion.
     

     
    What do the particle limits on minimum printing thicknesses mean on a model?
     
    On my 1/32nd scale winches, the minimum is a little more than 3/8” in full size. For my model I choose ½” thick webs on the legs (vertical and horizontal). The free standing gear brace is 1” scale thick. It could have been printed as thin as about 0.8 scale inches, if necessary. The crank handle also shown below was able to be printed with scale 1 ½” diameter handle shafts and 1” diameter handles.
     

     
    For the 1/32nd scale parts I was able to print them as separate pieces, except for the nuts which I had to put on a sprue, and the end of the drum and the clutch. These parts were too small to print individually. The large nuts are 2” square, with a 1” diameter hole (scale sizes).
     

     
    For the final printed version, I combined four winches into the file for printing. This cost little more than printing 2 winches (number required for model), and allowed spare parts when assembling the winches for the model. This turned out to be a good move, as one of the crank handles vanished into the black hole in my floor, while I was priming a set for the pictures in this article.
     
    For the 1/32nd scale winches, I will use drill rod for the axles and support rods. On the 1/64th scale winches, the drum axle is printed into the parts, and drill rod will be used again for the support rods.
     

     
    I had to make some compromises for the 1/64th scale parts. The minimum web thickness for the legs had to be increased to 0.9” and the one handle attached to the complex leg had to be made thicker. I increased to thickness on the outside edges, to make it easier to sand them down closer to scale. I also had to attach the rest of the smaller parts to a sprue. Even in this small size, I was able to put a hole in the larger nuts. It is under size, but will serve as a drill guide for bringing them to the needed scale 1” diameter.
     

     
    The axle shafts are printed as part of the assemblies, and the gear is attached to the leg. Attaching the gear still allowed for printing it the scale size.
     
    The feet for the legs are separate parts here, this makes sanding to thin the leg webs, later, easier.
     
    The drum parts, back of the legs, and the handles have recesses in them to fit the printed axles.
     
    Yes, one leg is missing; I deleted it from the drawing, so that the remaining parts could be displayed larger.
     
    This ends this series. I hope that some of these hints will help you in your endeavors.
     
    For those of you who may want further explanations, of how I drew the parts, and the history behind them, check out my Carrie Fisher build log.
     
    Feel free to ask questions, or if you run into a problem drawing your parts, maybe I can help.
  15. Like
    thibaultron got a reaction from dgbot in Going From A 2D Drawing To A 3D Printed Part Tutorial using SketchUp   
    Part 16B
     
    One thing that can keep your part from printing, is that it is too big to physically fit on the printing bed. The Bounding Box requirement is what determines this. Selecting that text will display your part, as it will fit inside the machine. At least most of the time the box will be shown, if not, you just have to check which of the axis may be too long, if the check fails. Another Bounding Box problem may be that there are parts, in the file, that are too small to be printed individually. I discussed this in an earlier section.
     
    If you will be printing multiple parts in the same file, looking at this will show you roughly how many you can fit in one print. Each file that you have printed has a $5 setup fee, so if you can fit multiple parts in each file, you only have to pay for the additional material costs.
     

     
    Now we need to check the Wall Thickness requirement, before we try to print the part. Select that text and the window below will be displayed.
     

     
    The minimum thickness limits are shown, as well as a graphic of the part. Green means good, but we need to inspect it closer.
     
    For one thing that sheet on the bottom is back. This will have to be corrected before the final part is ready.
     
    Looking more closely at the part there is another problem.
     

     
    There is a defect at one of the braces, shown by an extra nub/flash on the brace, and the red color. The red means that the part may be too thin. All these are probably caused by those interior walls.
     
    After cleaning everything up I came out with this for the final part. I combined two frame sets into one file (four frames total) to save setup costs.
     

     

     
    Looking at the scaling sheet, the four frames will cost.
     

     
    For an example of a failed part, I chose one of the other materials that the part was too thin to be printed in.
     

     

     
    It fails the wall thickness requirement.
     

     
    Some sections are thick enough (green), some are of questionable thickness (yellow), and most of it is just too thin (red).
     
    After these tests pass, there is a manual check that Shapeways performs after you make your first order of the parts. If these checks pass your parts are printed. If they find problems they will notify you, and give you the options of either having your money refunded, or to have the parts printed anyway, so that you can see what the results are.
     
    Here are some pictures of the printed winch parts. This is as good as I could photograph them. To get these pictures I had to film using my magnifying lens lamp and some zooming in with the camera, to even begin to see them.
     
    1/32nd scale parts as they arrived.
     

     
    1/64th scale parts.
     

     
    The 1/32nd scale parts primed.
     

     

     
    Notice that even the teeth on the 6” diameter 18 tooth gear are sharp. Much better than I could ever hope to make.
     

     
    You can see some roughness on the vertical surfaces due to printing the part in layers, but a little sanding will smooth them out. The horizontal surfaces are smooth.
     
    I have not had the frames printed yet. I’m still working on the 1/64th parts, and funds are a little tight right now.
     
  16. Like
    thibaultron got a reaction from mtaylor in Going From A 2D Drawing To A 3D Printed Part Tutorial using SketchUp   
    Part 16A
     
    Now we finally get to send something to the printer’s!!
     
    We have our STL file from Part 15, and this post will show the process of sending it to the printer to be checked for printability.
     
    Shapeways has a site where you can upload your drawing, have it checked for printability, be given the cost, and then order your part(s).
     
    Below is the opening screen, with the address circled. They have a page on their site where you can see what you have downloaded previously, and order more parts if you need to.
     

     
    Select the Upload button, and the screen to select which file you want checked will open.
     

     
    Select the file before you select a measurement unit, or you will not be able to select a file.
     
    Click on the SELECT FILE button, navigate to your STL file, select it and open it.
     

     
    The window will show what file has been selected
     

     
    Now you can select your unit of measure. In my case it is inches.
     

     
    The Shapeways printers are metric machines, and they prefer that you use metric for your model. You can use inches, without problems. When you scale the drawing, as shown later, the displayed measurement may be slightly different than the one you entered, due to the internal conversion to metric, but it will be undetectable in the finished model. Generally the difference is in the hundredths to thousandths of an inch. If it is more than this, rescale the part, or restart the download process.
     
    Select the UPLOAD button, and your file will be placed into the system. First a screen showing you that the file is being loaded will pop up.
     

     
    After the file is loaded the software will display the scaling screen with the values at zero.
     

     
    After some time, depending on your file size, or how busy they are, the window will display a scaled value. I assume that they roughly scale it to fit in their printer volume.
     

     
    As the given measurements are unlikely to match what you want, you need to rescale the part. Give it a few moments after the initial scale is displayed before you go to the rescaling screen. If you click too soon, you will generate an error. If this happens exit the window and try again. Sometimes I’ve had to restart the whole process.
     
    Select the SCALE button.
     
    The window below will be displayed.
     

     
    Notice that the unit’s defaults to CM, if you are using another type, select that first, then enter your scale measurement. The available units are shown below.
     

     
    I am using inches. Almost all my models will be based on US ships, or older European ones, before metrification, so I will probably always use inches.
     
    Now enter the scaled value for one of the dimensions. In this case, and generally, I’m going to use the X axis length. You can use any axis that will scale well.
     

     
    In 1/32nd scale the dredge frame comes out to about 2.25 inches long. For this post I did not take the time to calculate a more precise measurement. The other axis measurements will automatically be rescaled, and the scale factor will be displayed.
     
    Select the SAVE button, and the first screen will be displayed again, and after some more time, the new dimensions will be shown.
     

     
    As I stated earlier, the disadvantage of using inches, is that some small difference between what you entered, and the new measurement may occur. In this case I get 2.252 inches. Unless you are making parts for a nuclear reactor, it makes no noticeable difference in the finished part.
     
    The columns below the scale display show the various materials you can print your model in, whether your model is acceptable in that material, and the cost to print it. Shipping is extra, but if you submit several files at the same time, they will combine shipping.
     
    For our parts we will almost always need to use the materials that print the finest, the Frosted Ultra and Extreme detail plastics. I’m not sure what the detail definition difference is between the materials, but I use the Extreme, which has the finest detail. The cost difference is minimal, so I have not tried the Ultra Detail material.
     
    The picture below shows the screen of the progress to the checking. The Auto Checks column will say Loading until the checks for that material are finished. The checking for the Frosted Detail material generally takes the longest.
     

     
    The picture shows that the software has already determined that there are problems with printing it using the Metallic Plastic material. You can also see how much it will cost to print in each material, assuming that it passes the requirements.
     
    When the checks for each material are completed, a Passed, or View Issues result will be shown. For the dredge frame, either Frosted Plastic material can be printed.
     

     
    If you select View 3D Tools, a window showing the detailed results is displayed.
     

     
    For these parts, everything checks out, but you need to look further at the Wall Thickness requirement. There can be hidden problems, that while allowing it to be printed, might have to be corrected for a good detailed part.
     
  17. Like
    thibaultron got a reaction from mtaylor in Whaleboat kit - Amati vs Model Shipways vs Blue Jacket   
    Found the article on the Morgan whaleboat. http://www.thenrg.org/resources/The_Journal/574/57-4%20NRJ%20Morgan%20Whaleboat.pdf
  18. Like
    thibaultron got a reaction from mtaylor in Whaleboat kit - Amati vs Model Shipways vs Blue Jacket   
    The Charles Morgan whaleboat does have a build log on this site.
  19. Like
    thibaultron got a reaction from mtaylor in Whaleboat kit - Amati vs Model Shipways vs Blue Jacket   
    The Amati kit and the Model Shipways kit are of two different styles of whale boat.
     
    The Amati is not of a boat use on a larger sailing ship. It is a model of a Tancook Whaler, a type of fishing boat use on Tancook Island in Canada.
     
    The Model Shipways kit is of a different style, used on those larger whalers. Artesania Latina makes a kit of a boat also used on larger sailing whalers, in this case specifically the Charles W. Morgan, a ship that still exists in the Mystic Seaport Museum. Both the Artesania Latina and MS kits are models of actual boats used. I'm not sure if the Amati kit is from a real boat, or only of the general type.
     
    The Artesania Latinai kit has some mistakes in its design, as compared to the boat used on the Morgan. The hull and most of it are correct. I can not remember the article exactly, but the biggest mistake is the shape of the rudder. I think the build log is on this site, but an internet search should find it. This kit is actually less detailed than the MS kit. If I remember the build correctly, the author added a lot of scratch built details.
     
    The MS kit comes with an entire bound printed step by step book, on building the kit, not just their normally good stapled instructions.
     
    I have the Amati kit, the Artesania Latina kit, and in the past have had the MS kit, which I stupidly sold. The MS kit is much better.
     
    Both Artesania Latina, and Amati are known for questionable historic accuracy, but the Artesania Latina, is very close, and the Amati looks to be quite close to drawings I have seen in Chappele's books.
     
    From what I can see of the Bluejacket kit (I really wish they had more and larger pictures of their kits), it looks to be excellent also, but I have not seen the kit in person, only web pictures. They have an excellent reputation, and I do own some of their kits.
     
    If you want a model of the boat used on the Morgan, go with the Artesania Latina kit, otherwise, I would go with the MS kit. If you want one of the Tancook type, the Amati is the choice, but will need detailing, on the interior.
     
    Looking at the MS and BJ sites, the MS kit is 24" long 1/16 scale. The BJ kit is 10" long and 1/32 scale (it says 1/3 scale, but I doubt that the real boat was only 30" long). As both kits seem to be assembled stick by stick, I'd again recommend the MS kit, there is a lot of very small pieces in both, and the larger kit would make it easier to handle those parts. Depends on your skill level, desire for a challenge, and display space.
     
    The Artesania Latina kit is 1/25 scale, according to the article I saw. Depends on which site you look at, and the actual scale is not listed on the box. The Amati is also about 1/24, or at least falls in that range according to the general dimensions for this type.
     
    The two US manufacturers have a much better reputation than the other two. I normally avoid the European manf. but bought those kits after checking to see if they were accurate.
  20. Like
    thibaultron got a reaction from texxn5 in Whaleboat kit - Amati vs Model Shipways vs Blue Jacket   
    The Amati kit and the Model Shipways kit are of two different styles of whale boat.
     
    The Amati is not of a boat use on a larger sailing ship. It is a model of a Tancook Whaler, a type of fishing boat use on Tancook Island in Canada.
     
    The Model Shipways kit is of a different style, used on those larger whalers. Artesania Latina makes a kit of a boat also used on larger sailing whalers, in this case specifically the Charles W. Morgan, a ship that still exists in the Mystic Seaport Museum. Both the Artesania Latina and MS kits are models of actual boats used. I'm not sure if the Amati kit is from a real boat, or only of the general type.
     
    The Artesania Latinai kit has some mistakes in its design, as compared to the boat used on the Morgan. The hull and most of it are correct. I can not remember the article exactly, but the biggest mistake is the shape of the rudder. I think the build log is on this site, but an internet search should find it. This kit is actually less detailed than the MS kit. If I remember the build correctly, the author added a lot of scratch built details.
     
    The MS kit comes with an entire bound printed step by step book, on building the kit, not just their normally good stapled instructions.
     
    I have the Amati kit, the Artesania Latina kit, and in the past have had the MS kit, which I stupidly sold. The MS kit is much better.
     
    Both Artesania Latina, and Amati are known for questionable historic accuracy, but the Artesania Latina, is very close, and the Amati looks to be quite close to drawings I have seen in Chappele's books.
     
    From what I can see of the Bluejacket kit (I really wish they had more and larger pictures of their kits), it looks to be excellent also, but I have not seen the kit in person, only web pictures. They have an excellent reputation, and I do own some of their kits.
     
    If you want a model of the boat used on the Morgan, go with the Artesania Latina kit, otherwise, I would go with the MS kit. If you want one of the Tancook type, the Amati is the choice, but will need detailing, on the interior.
     
    Looking at the MS and BJ sites, the MS kit is 24" long 1/16 scale. The BJ kit is 10" long and 1/32 scale (it says 1/3 scale, but I doubt that the real boat was only 30" long). As both kits seem to be assembled stick by stick, I'd again recommend the MS kit, there is a lot of very small pieces in both, and the larger kit would make it easier to handle those parts. Depends on your skill level, desire for a challenge, and display space.
     
    The Artesania Latina kit is 1/25 scale, according to the article I saw. Depends on which site you look at, and the actual scale is not listed on the box. The Amati is also about 1/24, or at least falls in that range according to the general dimensions for this type.
     
    The two US manufacturers have a much better reputation than the other two. I normally avoid the European manf. but bought those kits after checking to see if they were accurate.
  21. Like
    thibaultron got a reaction from texxn5 in Whaleboat kit - Amati vs Model Shipways vs Blue Jacket   
    The Charles Morgan whaleboat does have a build log on this site.
  22. Like
    thibaultron got a reaction from texxn5 in Whaleboat kit - Amati vs Model Shipways vs Blue Jacket   
    Found the article on the Morgan whaleboat. http://www.thenrg.org/resources/The_Journal/574/57-4%20NRJ%20Morgan%20Whaleboat.pdf
  23. Like
    thibaultron got a reaction from mtaylor in Going From A 2D Drawing To A 3D Printed Part Tutorial using SketchUp   
    Part 16C
     
    As I mentioned earlier, Shapeways has a page that shows all your models, so that you can order more parts, and you can also make your models available to the public. I am not sure what the later entails, maybe a subject for a future post.
     
    Here is a sample of my page, with the address highlighted. The page is a private page that I have to log into, in the future I plan to make some of these public, but that will be a while.
     
    You will get your own page, once you start submitting projects.
     

     
    Every time you upload a file, it will be placed on your models page, so you will have to periodically clean out your test files. You can see some of the files from making this article, and some from my ongoing 1/64th scale version. Notice that if you submit the same file, with the same name, more than once, you will get multiple instances of it in your model list (last two entries in this list). Be sure to name your final file a unique name, to avoid confusion.
     

     
    What do the particle limits on minimum printing thicknesses mean on a model?
     
    On my 1/32nd scale winches, the minimum is a little more than 3/8” in full size. For my model I choose ½” thick webs on the legs (vertical and horizontal). The free standing gear brace is 1” scale thick. It could have been printed as thin as about 0.8 scale inches, if necessary. The crank handle also shown below was able to be printed with scale 1 ½” diameter handle shafts and 1” diameter handles.
     

     
    For the 1/32nd scale parts I was able to print them as separate pieces, except for the nuts which I had to put on a sprue, and the end of the drum and the clutch. These parts were too small to print individually. The large nuts are 2” square, with a 1” diameter hole (scale sizes).
     

     
    For the final printed version, I combined four winches into the file for printing. This cost little more than printing 2 winches (number required for model), and allowed spare parts when assembling the winches for the model. This turned out to be a good move, as one of the crank handles vanished into the black hole in my floor, while I was priming a set for the pictures in this article.
     
    For the 1/32nd scale winches, I will use drill rod for the axles and support rods. On the 1/64th scale winches, the drum axle is printed into the parts, and drill rod will be used again for the support rods.
     

     
    I had to make some compromises for the 1/64th scale parts. The minimum web thickness for the legs had to be increased to 0.9” and the one handle attached to the complex leg had to be made thicker. I increased to thickness on the outside edges, to make it easier to sand them down closer to scale. I also had to attach the rest of the smaller parts to a sprue. Even in this small size, I was able to put a hole in the larger nuts. It is under size, but will serve as a drill guide for bringing them to the needed scale 1” diameter.
     

     
    The axle shafts are printed as part of the assemblies, and the gear is attached to the leg. Attaching the gear still allowed for printing it the scale size.
     
    The feet for the legs are separate parts here, this makes sanding to thin the leg webs, later, easier.
     
    The drum parts, back of the legs, and the handles have recesses in them to fit the printed axles.
     
    Yes, one leg is missing; I deleted it from the drawing, so that the remaining parts could be displayed larger.
     
    This ends this series. I hope that some of these hints will help you in your endeavors.
     
    For those of you who may want further explanations, of how I drew the parts, and the history behind them, check out my Carrie Fisher build log.
     
    Feel free to ask questions, or if you run into a problem drawing your parts, maybe I can help.
  24. Like
    thibaultron got a reaction from mtaylor in Going From A 2D Drawing To A 3D Printed Part Tutorial using SketchUp   
    Part 16B
     
    One thing that can keep your part from printing, is that it is too big to physically fit on the printing bed. The Bounding Box requirement is what determines this. Selecting that text will display your part, as it will fit inside the machine. At least most of the time the box will be shown, if not, you just have to check which of the axis may be too long, if the check fails. Another Bounding Box problem may be that there are parts, in the file, that are too small to be printed individually. I discussed this in an earlier section.
     
    If you will be printing multiple parts in the same file, looking at this will show you roughly how many you can fit in one print. Each file that you have printed has a $5 setup fee, so if you can fit multiple parts in each file, you only have to pay for the additional material costs.
     

     
    Now we need to check the Wall Thickness requirement, before we try to print the part. Select that text and the window below will be displayed.
     

     
    The minimum thickness limits are shown, as well as a graphic of the part. Green means good, but we need to inspect it closer.
     
    For one thing that sheet on the bottom is back. This will have to be corrected before the final part is ready.
     
    Looking more closely at the part there is another problem.
     

     
    There is a defect at one of the braces, shown by an extra nub/flash on the brace, and the red color. The red means that the part may be too thin. All these are probably caused by those interior walls.
     
    After cleaning everything up I came out with this for the final part. I combined two frame sets into one file (four frames total) to save setup costs.
     

     

     
    Looking at the scaling sheet, the four frames will cost.
     

     
    For an example of a failed part, I chose one of the other materials that the part was too thin to be printed in.
     

     

     
    It fails the wall thickness requirement.
     

     
    Some sections are thick enough (green), some are of questionable thickness (yellow), and most of it is just too thin (red).
     
    After these tests pass, there is a manual check that Shapeways performs after you make your first order of the parts. If these checks pass your parts are printed. If they find problems they will notify you, and give you the options of either having your money refunded, or to have the parts printed anyway, so that you can see what the results are.
     
    Here are some pictures of the printed winch parts. This is as good as I could photograph them. To get these pictures I had to film using my magnifying lens lamp and some zooming in with the camera, to even begin to see them.
     
    1/32nd scale parts as they arrived.
     

     
    1/64th scale parts.
     

     
    The 1/32nd scale parts primed.
     

     

     
    Notice that even the teeth on the 6” diameter 18 tooth gear are sharp. Much better than I could ever hope to make.
     

     
    You can see some roughness on the vertical surfaces due to printing the part in layers, but a little sanding will smooth them out. The horizontal surfaces are smooth.
     
    I have not had the frames printed yet. I’m still working on the 1/64th parts, and funds are a little tight right now.
     
  25. Like
    thibaultron got a reaction from ianmajor in Going From A 2D Drawing To A 3D Printed Part Tutorial using SketchUp   
    Part 16A
     
    Now we finally get to send something to the printer’s!!
     
    We have our STL file from Part 15, and this post will show the process of sending it to the printer to be checked for printability.
     
    Shapeways has a site where you can upload your drawing, have it checked for printability, be given the cost, and then order your part(s).
     
    Below is the opening screen, with the address circled. They have a page on their site where you can see what you have downloaded previously, and order more parts if you need to.
     

     
    Select the Upload button, and the screen to select which file you want checked will open.
     

     
    Select the file before you select a measurement unit, or you will not be able to select a file.
     
    Click on the SELECT FILE button, navigate to your STL file, select it and open it.
     

     
    The window will show what file has been selected
     

     
    Now you can select your unit of measure. In my case it is inches.
     

     
    The Shapeways printers are metric machines, and they prefer that you use metric for your model. You can use inches, without problems. When you scale the drawing, as shown later, the displayed measurement may be slightly different than the one you entered, due to the internal conversion to metric, but it will be undetectable in the finished model. Generally the difference is in the hundredths to thousandths of an inch. If it is more than this, rescale the part, or restart the download process.
     
    Select the UPLOAD button, and your file will be placed into the system. First a screen showing you that the file is being loaded will pop up.
     

     
    After the file is loaded the software will display the scaling screen with the values at zero.
     

     
    After some time, depending on your file size, or how busy they are, the window will display a scaled value. I assume that they roughly scale it to fit in their printer volume.
     

     
    As the given measurements are unlikely to match what you want, you need to rescale the part. Give it a few moments after the initial scale is displayed before you go to the rescaling screen. If you click too soon, you will generate an error. If this happens exit the window and try again. Sometimes I’ve had to restart the whole process.
     
    Select the SCALE button.
     
    The window below will be displayed.
     

     
    Notice that the unit’s defaults to CM, if you are using another type, select that first, then enter your scale measurement. The available units are shown below.
     

     
    I am using inches. Almost all my models will be based on US ships, or older European ones, before metrification, so I will probably always use inches.
     
    Now enter the scaled value for one of the dimensions. In this case, and generally, I’m going to use the X axis length. You can use any axis that will scale well.
     

     
    In 1/32nd scale the dredge frame comes out to about 2.25 inches long. For this post I did not take the time to calculate a more precise measurement. The other axis measurements will automatically be rescaled, and the scale factor will be displayed.
     
    Select the SAVE button, and the first screen will be displayed again, and after some more time, the new dimensions will be shown.
     

     
    As I stated earlier, the disadvantage of using inches, is that some small difference between what you entered, and the new measurement may occur. In this case I get 2.252 inches. Unless you are making parts for a nuclear reactor, it makes no noticeable difference in the finished part.
     
    The columns below the scale display show the various materials you can print your model in, whether your model is acceptable in that material, and the cost to print it. Shipping is extra, but if you submit several files at the same time, they will combine shipping.
     
    For our parts we will almost always need to use the materials that print the finest, the Frosted Ultra and Extreme detail plastics. I’m not sure what the detail definition difference is between the materials, but I use the Extreme, which has the finest detail. The cost difference is minimal, so I have not tried the Ultra Detail material.
     
    The picture below shows the screen of the progress to the checking. The Auto Checks column will say Loading until the checks for that material are finished. The checking for the Frosted Detail material generally takes the longest.
     

     
    The picture shows that the software has already determined that there are problems with printing it using the Metallic Plastic material. You can also see how much it will cost to print in each material, assuming that it passes the requirements.
     
    When the checks for each material are completed, a Passed, or View Issues result will be shown. For the dredge frame, either Frosted Plastic material can be printed.
     

     
    If you select View 3D Tools, a window showing the detailed results is displayed.
     

     
    For these parts, everything checks out, but you need to look further at the Wall Thickness requirement. There can be hidden problems, that while allowing it to be printed, might have to be corrected for a good detailed part.
     
×
×
  • Create New...