CDR_Ret

Pat,
 
What is driving your requirement to obtain an IGES file?
 
To get around the need for the DELFTship Pro version, you might consider saving your model as a DXF 3D file, available in the DELFTship Free program. (Note that this operation saves all the geometry in the model, both visible and hidden, and on all the layers.) Then you can import the DXF into Fusion360, and then export to IGES. I don't have the ability to do that myself but, based on various websites, it sounds like it would be a doable path. There may be other paths available using browser-based file converters. However, there may be some file quality and security issues using those.
 
Just remember that DELFTship uses a surface modeling technique called subdivision surfaces (a type of spline-surface). The control net creates the surface in 3D space using mathematical algorithms, which results in a surface curvature that is a function of edge density, type of edges, control point density, and the shape of the control net. The program references these surfaces (not the control net) when exporting them to other file formats. It seems like many 3D CAD software have tightened up their file import/export capabilities in recent years. DELFTship and Sketchup are no exceptions.
 
Not sure that explanation helped, but it may adjust your expectations for this software!
 
Enjoyed visiting your website.👍
 
Terry
 

HI Pat.
 
I suggest checking out my "Galilee" topic. Spent nearly seven years reconstructing the historic brigantine's hull and deck furniture in DELFTship.
 
The DELFTship forum is alive but grossly underused. The company itself favors the professional and serious ship/boatbuilders, and only throws a bone occasionally to we modelers and maritime historians.
 
I'd be happy to answer any questions you may have. Feel free to PM me as well.
 
Terry

Having been a Gunners Mate aboard the Ammen DD 527, this Johnston video adds to my respect of the Fletcher Class Destroyers and their crews. Considered it an honor to have served with WW2 and Korean War Veterans getting close to retirement. “Rocks and Shoals Navy”, is no more.  

Remember the convenient arrangement of the facility's for dumping aboard the Helena, CA 75 was a face to face arrangement of our modern flushing commodes. One day in 62 while tied up at North Island 95% of our 1200+/- man crew got the shits, was blamed on the Scullery not rinsing the soap adequately. Don't know, I started heaving in a bucket I grabbed on a line spool under the tail of Turret 2, which I was attempting to enter. Made it to a head and noticed how handy is was to dump in the pot while pukeing in the lap of the guy across from you and neither one caring. Learned that much thought must go into the placement of those seats of ease. Oh, flu lasted about 2 hours and the ship was, although it was a big job, cleaned up for supper. Photo in Hong Kong 1961

Very nice, Pat!
 
I built Revell's model of the Fire Fighter as a kid. I have no idea how accurate that was.
 
Anyway, it seems that trying to export files out of DELFTship will be problematic. And after trying to export DXF 3D geometry into 3rd-party file converters this weekend, it almost looks like the function is broken in the Free version. I only get the crease edges. No surfaces at all.

Pat,
 
I guess I must have worded my question wrong, or at least it was unclear. Sorry about that. Ultimately, do you want to create 2D lines plans or produce files that can be 3D printed?
 
If the former, then DELFTship Free has everything you will need for lines plans. You can create stations, waterlines, buttocks, and diagonals at any spacing you wish, The Control Net can produce as smooth a surface as desired and the surface tools can identify surface irregularities, as you mentioned in an earlier post.
 
The choice of dimensional precision permits you to create very tiny and precise objects as well. My brigantine model has objects that are accurately dimensioned down to small fractions of an inch, though one would never be able to model those in the real world at a reasonable scale. Here are several views of Galilee in DELFTship Free showing the details possible. Exported images here are rendered within DELFTship at originally 3000 px wide. The only details I omitted in the model were the beaded sheathing planks on the cabin sides simply because that would have been too tedious for what you would get out of the work.

Forward deck area of the brigantine Galilee as she was in 1907 while under charter to the Department of Terrestrial Magnetism, Carnegie Institution, Washington, D.C. Modeled in DELFTship Free.

Galilee aft view. Modeled in DELFTship Free. The outboard rods supporting the davits are 3/4-inch diameter by scale.
 

Details of hardware in Galilee modeled in DELFTship Free. Belaying pins, eyebolts, ring bolts, all were created to scale.
 
2D lines plans can be produced right within the program, suitable for desktop or roll printers. To reduce the clutter, you have to select only the layers intended to be printed in the Lines Plans via the Edit menu of the Layers group in the Home Ribbon.
 
The major downside to DELFTship is that you can't produce photorealistic images of the model which might be useful for a client. Also, DELFTship does not have a lot of tools for modeling small detailed objects that other programs like Fusion360, FreeCAD, Blender, or Sketchup may have. But with patience and ingenuity, you can create just about anything. I haven't tried anything organic yet, but others have.
 
Is this what you are trying to achieve?
 
Terry

Pat,
 
What is driving your requirement to obtain an IGES file?
 
To get around the need for the DELFTship Pro version, you might consider saving your model as a DXF 3D file, available in the DELFTship Free program. (Note that this operation saves all the geometry in the model, both visible and hidden, and on all the layers.) Then you can import the DXF into Fusion360, and then export to IGES. I don't have the ability to do that myself but, based on various websites, it sounds like it would be a doable path. There may be other paths available using browser-based file converters. However, there may be some file quality and security issues using those.
 
Just remember that DELFTship uses a surface modeling technique called subdivision surfaces (a type of spline-surface). The control net creates the surface in 3D space using mathematical algorithms, which results in a surface curvature that is a function of edge density, type of edges, control point density, and the shape of the control net. The program references these surfaces (not the control net) when exporting them to other file formats. It seems like many 3D CAD software have tightened up their file import/export capabilities in recent years. DELFTship and Sketchup are no exceptions.
 
Not sure that explanation helped, but it may adjust your expectations for this software!
 
Enjoyed visiting your website.👍
 
Terry
 

HI Pat.
 
I suggest checking out my "Galilee" topic. Spent nearly seven years reconstructing the historic brigantine's hull and deck furniture in DELFTship.
 
The DELFTship forum is alive but grossly underused. The company itself favors the professional and serious ship/boatbuilders, and only throws a bone occasionally to we modelers and maritime historians.
 
I'd be happy to answer any questions you may have. Feel free to PM me as well.
 
Terry

And as you have discovered, we are more than willing to misread a post if it garners a laugh! 😁

And as you have discovered, we are more than willing to misread a post if it garners a laugh! 😁

And as you have discovered, we are more than willing to misread a post if it garners a laugh! 😁

Wow!
Your father must be a genius! Building such a yacht at the age of seven? Barely in the early grammar school years and already getting into such a task???  Unbelievable!!!

A very late starter to this craft, I am looking forward to the learning experience. I just finished my first ship. 
Lowell Grand Banks dory. It was a good experience for me, and I look forward to my next building the
Norwegian Sailing Pram.

BMT

Here's some more on this wreck - it seems a little surprising that it's only getting this news attention now - they've been working on the wreck for some years.
 
https://honorfrostfoundation.org/2018/10/03/the-maagan-mikhael-shipwreck/
 
https://onlinelibrary.wiley.com/doi/full/10.1111/1095-9270.12331
 
Steven

This news item is being covered on several websites. The UK Daily Mail seems to have one of the more complete write-ups, though it doesn't provide much detail. Several videos on various sites include interviews with the divers.
 
This piece claims that the wreck's contents upend the idea that after the Islamic conquest of the Middle East, basically all trade with Western Europe shut down. Not sure why that was the case. Traders always seem to ignore geopolitical differences. We see that even today.
 
Terry  

This news item is being covered on several websites. The UK Daily Mail seems to have one of the more complete write-ups, though it doesn't provide much detail. Several videos on various sites include interviews with the divers.
 
This piece claims that the wreck's contents upend the idea that after the Islamic conquest of the Middle East, basically all trade with Western Europe shut down. Not sure why that was the case. Traders always seem to ignore geopolitical differences. We see that even today.
 
Terry  

Continuing with test build for two full remes.
 
I used TinkerCAD to sketch a section of the side of the ship, 1/16" thick, pierced by four cylinders representing an oar shaft at the four extreme positions of the oar. Goal is to find minimum size and shape for thole hole which allows rowing without being too much of an entrance for water. Here is a screen image.

Then I change the cylinders from "Solid" to "Hole" and "Group" the lot. This leaves the red plate with the ensuing hole.
I drew two cases, for the lower and upper remes, since the angles are different i.e. the lower oars' vertical range includes horizontal, whereas the uppers are angled down whether in or out of the water. Here is the result:

The shaded ellipses at the bottom by my judgement are more or less equivalent to the cutouts in the plates. You can see that the upper reme requires a taller opening, since these oars pass through at a steeper angle.
 
For the lower reme, a suitable "ellipse" can be formed by using a 7.5mm (0.295") brad point drill bit to drill a pair of holes offset by 5/64" (gives an oval 0.295" x 0.373"). My old eyes had trouble seeing the 64ths marks on my ruler so I just used a slightly heavy 1/16".  Using a jig on the drill press I was able to drill a nice line of 22 of these ovals in a strip of 1/16" plywood, which is what I plan to use at this location on the actual model.
 
This strip was then mounted on the baseplate of the jig, with height over waterline, and spacing from the mechanism, matching the planned values for the model. Once this was in place, the lower oar attachment strip was mounted on the beam such that the fully down beam position yielded horizontal oars, and all 22 oars were attached. Here is a little video. I just used the 2-channel RC set to move in each dimension. We're leaving on vacation tomorrow and I don't have time today to hook up the Arduino, get myself back up to speed on the software, and alter the servos' movement ranges to suit the new mechanical setup.
 
 
The beam only has to move up and down by 3/8" to move the oars from in the water (measuring against the blue surface level) to horizontal. This is exactly as calculated in earlier drawings, thanks to the reduction in loom length to 1.5" from 2".
 
I mention that the oars have a lot of play in the sweep direction. This could be problematic in terms of having another set of oars from the upper reme interlaced with them at only 5/8" spacing. It would be ok during the power stroke because all oars would be pressing on the forward ends of their thole holes, and they'd all be aligned nicely, assuming I drill the thole holes and mounting screw holes accurately. But once lifted into the air on the return stroke they're liable to be flopping all over and perhaps hitting each other. My first reaction was, "Damn, I'm going to have to add thole pins and strap the oar shafts to them like in the real thing". I'm reluctant to get into this, with the prospect of strings breaking and continual upkeep with poor access. All I really need is some way to "gently" continuously nudge the shafts to the forward ends of their holes, where they will naturally place themselves during the power stroke. I thought of lashing all the oars in a reme together just inside the bulwark with a rubber band tensioning the forward end; doesn't sound too practical either. Perhaps a rubber band on each oar? Nah! Then I thought of having a rubber o-ring placed just aft of each oar, with its aftermost quarter siliconed to the inside of the bulwark, or a rib of the model, and its free end just pushing the oar shaft against the forward end of the thole hole. When the shaft has to pivot aft for the return stroke it can just flex the o-ring into a vertical ellipse. There wouldn't be appreciable additional stress on the sweep servo since the o-ring is right at the pivot point. Hmmm, maybe.
 
It has now been a whole year since I started farting around with this 😒, albeit I spent much of last winter on rigging  another model. The Admiral must be sick of hearing about it. I really really hope I can start on the actual hull this winter. Just want to add 2nd reme to this jig and satisfy myself that I can make a bireme work, whether with o-rings or some other idea. (monoreme woudn't be an issue, perhaps that's why videos I see are all monoreme RC models??).  Or just maybe I will add the 2nd reme and there won't be a collision issue 😬. One can hope.
 
Thanks for reading!

I believe that painted canvas was also used over roofs.

And make sure you provide clear attribution in your text, and even a link to the original source.
 
Terry

Well, for the most part, that aspect of the job was actually one of the more meaningful roles I had to fill in off-crew, and I was glad to assist the families experiencing problems when their husbands/fathers weren't around. And it wasn't like I was alone. I had the assistance of the on-crew's ombudsman, and the CO, XO, and COB's wives, who were indispensible for handling on-crew family problems. I was more like the traffic cop, directing issues to the best-qualified to help. It was getting phone calls in the office from 16-year-old girls crying because they had spent all their husband's money that irked. And that happened more than once!
 
My wife had more issues dealing with our own crew's wives...
 
Sorry, didn't intend to hijack the welcome aboard.

Well, I'll answer your question by describing what I liked about SSNs, first. When not on deployments, attack boats conducted what we called weekly ops. Routinely, underway on Monday, back in port on Friday, more or less. If you were lucky, you didn't have the duty over the weekend. Great for family life. SSNs were often tasked with interesting things like weapons evaluations, supporting fleet exercises, providing ASW services to the skimmers and VP assets, under-ice training, preparing for type-commander inspections, etc., etc. Occasionally, a boat would be scrambled to investigate a SOSUS contact or whatever. A very interesting and busy life.
 
US boomers had a set schedule. 60 days in home port/90 days deployed--over and over again. "49 days and a wake-up." The time at home port was spent training, getting required schools, a little leave if possible. As XO, I also had to deal with the family issues of the deployed crew. You wouldn't believe how many teenaged sailors married even younger girls who had no clue how to budget. Spent all their husband's advanced pay after only a few weeks!
 
When deployed, everyone got sick during the month-long refit due to long work hours, then we went to sea. We literally drilled holes through the ocean trying to avoid detection, which was our primary peacetime mission. Of course the crew kept busy with qualifications and drills, but after 14 years in tactical and intelligence work with SSNs, it was pretty boring. The two-crew concept also tended to lead to leaving problems to the other crew, which resulted in some acrimony between crews. Boomer crews also tended to be made up of mostly long-term boomer sailors, who often had a starkly different views of navy life and even worldviews compared to SSN sailors.
 
Just some thoughts.

Well, for the most part, that aspect of the job was actually one of the more meaningful roles I had to fill in off-crew, and I was glad to assist the families experiencing problems when their husbands/fathers weren't around. And it wasn't like I was alone. I had the assistance of the on-crew's ombudsman, and the CO, XO, and COB's wives, who were indispensible for handling on-crew family problems. I was more like the traffic cop, directing issues to the best-qualified to help. It was getting phone calls in the office from 16-year-old girls crying because they had spent all their husband's money that irked. And that happened more than once!
 
My wife had more issues dealing with our own crew's wives...
 
Sorry, didn't intend to hijack the welcome aboard.

Well, I'll answer your question by describing what I liked about SSNs, first. When not on deployments, attack boats conducted what we called weekly ops. Routinely, underway on Monday, back in port on Friday, more or less. If you were lucky, you didn't have the duty over the weekend. Great for family life. SSNs were often tasked with interesting things like weapons evaluations, supporting fleet exercises, providing ASW services to the skimmers and VP assets, under-ice training, preparing for type-commander inspections, etc., etc. Occasionally, a boat would be scrambled to investigate a SOSUS contact or whatever. A very interesting and busy life.
 
US boomers had a set schedule. 60 days in home port/90 days deployed--over and over again. "49 days and a wake-up." The time at home port was spent training, getting required schools, a little leave if possible. As XO, I also had to deal with the family issues of the deployed crew. You wouldn't believe how many teenaged sailors married even younger girls who had no clue how to budget. Spent all their husband's advanced pay after only a few weeks!
 
When deployed, everyone got sick during the month-long refit due to long work hours, then we went to sea. We literally drilled holes through the ocean trying to avoid detection, which was our primary peacetime mission. Of course the crew kept busy with qualifications and drills, but after 14 years in tactical and intelligence work with SSNs, it was pretty boring. The two-crew concept also tended to lead to leaving problems to the other crew, which resulted in some acrimony between crews. Boomer crews also tended to be made up of mostly long-term boomer sailors, who often had a starkly different views of navy life and even worldviews compared to SSN sailors.
 
Just some thoughts.

Well, I'll answer your question by describing what I liked about SSNs, first. When not on deployments, attack boats conducted what we called weekly ops. Routinely, underway on Monday, back in port on Friday, more or less. If you were lucky, you didn't have the duty over the weekend. Great for family life. SSNs were often tasked with interesting things like weapons evaluations, supporting fleet exercises, providing ASW services to the skimmers and VP assets, under-ice training, preparing for type-commander inspections, etc., etc. Occasionally, a boat would be scrambled to investigate a SOSUS contact or whatever. A very interesting and busy life.
 
US boomers had a set schedule. 60 days in home port/90 days deployed--over and over again. "49 days and a wake-up." The time at home port was spent training, getting required schools, a little leave if possible. As XO, I also had to deal with the family issues of the deployed crew. You wouldn't believe how many teenaged sailors married even younger girls who had no clue how to budget. Spent all their husband's advanced pay after only a few weeks!
 
When deployed, everyone got sick during the month-long refit due to long work hours, then we went to sea. We literally drilled holes through the ocean trying to avoid detection, which was our primary peacetime mission. Of course the crew kept busy with qualifications and drills, but after 14 years in tactical and intelligence work with SSNs, it was pretty boring. The two-crew concept also tended to lead to leaving problems to the other crew, which resulted in some acrimony between crews. Boomer crews also tended to be made up of mostly long-term boomer sailors, who often had a starkly different views of navy life and even worldviews compared to SSN sailors.
 
Just some thoughts.

Hey Glenn,
 
Over my career, I served in a 637-class long-hull, a 637 short-hull, built a 688, and served as XO in several boomers during a decommissioning of one. Didn't like the boomers...