Roger Pellett
-
Posts
4,519 -
Joined
-
Last visited
Reputation Activity
-
Roger Pellett got a reaction from Nirvana in Workshop Advice
Why not put your bench where you intend to do your detailed hand work under the window so at least part of the time you have natural light? I find that bench top power tools work quite well with light from overhead recesed overhead fluorescent fixtures. I second having a dedicated circuit breaker box in your shop and you can't have enough outlets. On the other hand, I run a 10in contractors saw to mill hardwoods satisfactorily on 110v.
Roger
-
Roger Pellett got a reaction from mischief in Workshop Advice
Why not put your bench where you intend to do your detailed hand work under the window so at least part of the time you have natural light? I find that bench top power tools work quite well with light from overhead recesed overhead fluorescent fixtures. I second having a dedicated circuit breaker box in your shop and you can't have enough outlets. On the other hand, I run a 10in contractors saw to mill hardwoods satisfactorily on 110v.
Roger
-
Roger Pellett reacted to KeithAug in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
I spent much of my spare time this weekend finishing the deck house doors.
I made the 3rd set of hinges and was finally happy with them. In particular my soldering was much improved.
Getting the hinges in the right position proved vital for smooth operation. In the end I took the pins out and mounted the hinge halves separately. Accurate cutting out of the hinge recesses proved to be a key aid to correct positioning.
Having mounted both doors I spent a few hours making the door handles (matching the originals in so far as scale and skill) would allow.
-
Roger Pellett got a reaction from tlevine in Anchor Hoy c. 1825 by Maury S - FINISHED - 1:48 - Harbor craft - POF
Maury, Yes, I agree that other then showing the basic gear train the Grice drawing does not provide the necessary details. In that case, I generally try to find out what the state of the art was at the period in question.
In this case, I believe that the technology was not available in the US to machine involute pattern gear teeth in a large iron wheel like this. On the other hand examples exist in England of large wooden gear trains in water mills. For example see www.whitemill.org. There is another example of an iron gear wheel with wooden teeth. The teeth were shaped from a hard wood like apple and were inserted into cavities cast in the iron wheel. This approach was favored as the teeth were the "weak link" that would fail first and could be easily replaced.
The famous marine engineer Benjamin Franklin Isherwood used a wooden gear train in the late 1860's (40 years later than your period) to increase revolutions of the main engines of the high speed cruiser USS Wampanoag. The gears supposedly wore 5/8in during the vessel's sea trial.
You are to be congratulated on building this model of a usual and unique craft. You are doing a great job.
Roger
-
Roger Pellett reacted to Maury S in Anchor Hoy c. 1825 by Maury S - FINISHED - 1:48 - Harbor craft - POF
Per, The joints are arranged on each spoke at the intersection of the ajacent spokes and gear and about half-way between spokes on the gear head. The monofilament line idea comes from Ed Tosti's Naiad and Young America builds. I've used two different sizes, depending on application. They are dipped in CA, inserted, sliced off and wiped with acetone immediately. Roger, thanks again for the mill reference.
Maury
-
Roger Pellett got a reaction from FriedClams in 19th Century 31-ton Revenue Cutter by CharlieZardoz - Scale 1/64 - building as USRC Active based off Doughty plans and BlueJacket Shipcrafters kit
Charlie,
If you have not already done so, before deciding on a color scheme for these models I would obtain a copy of Eric Ronnberg's excellent article on period correct paints from the Nautical Research Guild. It is from Volume 36, issue 4 downloadable from their web site.
Roger
-
Roger Pellett got a reaction from donfarr in 19th Century 31-ton Revenue Cutter by CharlieZardoz - Scale 1/64 - building as USRC Active based off Doughty plans and BlueJacket Shipcrafters kit
Charlie,
If you have not already done so, before deciding on a color scheme for these models I would obtain a copy of Eric Ronnberg's excellent article on period correct paints from the Nautical Research Guild. It is from Volume 36, issue 4 downloadable from their web site.
Roger
-
Roger Pellett reacted to Maury S in Anchor Hoy c. 1825 by Maury S - FINISHED - 1:48 - Harbor craft - POF
With special thanks to Roger, I re-worked the gears as built-up wooden gears. The joints are simulated and the bolts are 20 pound mono- filament line. The lighter parts in the center are a reflection of the light above...not a different color. They are certainly more interesting this way.
Maury
-
Roger Pellett got a reaction from Elijah in Two Edwardian-type launches by captainbob - FINISHED - 1:48 - SMALL
Bob,
Don't worry about getting up steam all you have to do is tell the "help" what time the boat needs to be ready.
Roger
-
Roger Pellett got a reaction from Elijah in Two Edwardian-type launches by captainbob - FINISHED - 1:48 - SMALL
Bob, if you need a good reference for steam launches with lots of pictures and some hull lines, pick up a copy of "The Steam Launch" by Richard Mitchel. Used copies are available for less than $20. This book also includes pictures of boilers and engines.
Roger Pellett
-
Roger Pellett got a reaction from EdT in Anchor Hoy c. 1825 by Maury S - FINISHED - 1:48 - Harbor craft - POF
Maury, Yes, I agree that other then showing the basic gear train the Grice drawing does not provide the necessary details. In that case, I generally try to find out what the state of the art was at the period in question.
In this case, I believe that the technology was not available in the US to machine involute pattern gear teeth in a large iron wheel like this. On the other hand examples exist in England of large wooden gear trains in water mills. For example see www.whitemill.org. There is another example of an iron gear wheel with wooden teeth. The teeth were shaped from a hard wood like apple and were inserted into cavities cast in the iron wheel. This approach was favored as the teeth were the "weak link" that would fail first and could be easily replaced.
The famous marine engineer Benjamin Franklin Isherwood used a wooden gear train in the late 1860's (40 years later than your period) to increase revolutions of the main engines of the high speed cruiser USS Wampanoag. The gears supposedly wore 5/8in during the vessel's sea trial.
You are to be congratulated on building this model of a usual and unique craft. You are doing a great job.
Roger
-
Roger Pellett reacted to Maury S in Anchor Hoy c. 1825 by Maury S - FINISHED - 1:48 - Harbor craft - POF
Roger,
Thank you for the comments. This is invaluable information and I am so glad to have received it. The link and pictures of the mill with the large wooden gears now have me leaning towards displaying it as such. I would include one of the pictures, but do not want to step on the copyright. See the link: http://www.whitemill.org/z0012.htm
It's just a matter of sanding the black paint off the pieces and simulating joints.
I love this organization. So much help from so many people.
Maury
-
Roger Pellett reacted to druxey in Anchor Hoy c. 1825 by Maury S - FINISHED - 1:48 - Harbor craft - POF
Fascinating information and pictures of the Whitemill! Thanks you, Roger, for bringing this to our attention.
-
Roger Pellett got a reaction from mtaylor in Anchor Hoy c. 1825 by Maury S - FINISHED - 1:48 - Harbor craft - POF
Maury, Yes, I agree that other then showing the basic gear train the Grice drawing does not provide the necessary details. In that case, I generally try to find out what the state of the art was at the period in question.
In this case, I believe that the technology was not available in the US to machine involute pattern gear teeth in a large iron wheel like this. On the other hand examples exist in England of large wooden gear trains in water mills. For example see www.whitemill.org. There is another example of an iron gear wheel with wooden teeth. The teeth were shaped from a hard wood like apple and were inserted into cavities cast in the iron wheel. This approach was favored as the teeth were the "weak link" that would fail first and could be easily replaced.
The famous marine engineer Benjamin Franklin Isherwood used a wooden gear train in the late 1860's (40 years later than your period) to increase revolutions of the main engines of the high speed cruiser USS Wampanoag. The gears supposedly wore 5/8in during the vessel's sea trial.
You are to be congratulated on building this model of a usual and unique craft. You are doing a great job.
Roger
-
Roger Pellett got a reaction from druxey in Anchor Hoy c. 1825 by Maury S - FINISHED - 1:48 - Harbor craft - POF
Maury, Yes, I agree that other then showing the basic gear train the Grice drawing does not provide the necessary details. In that case, I generally try to find out what the state of the art was at the period in question.
In this case, I believe that the technology was not available in the US to machine involute pattern gear teeth in a large iron wheel like this. On the other hand examples exist in England of large wooden gear trains in water mills. For example see www.whitemill.org. There is another example of an iron gear wheel with wooden teeth. The teeth were shaped from a hard wood like apple and were inserted into cavities cast in the iron wheel. This approach was favored as the teeth were the "weak link" that would fail first and could be easily replaced.
The famous marine engineer Benjamin Franklin Isherwood used a wooden gear train in the late 1860's (40 years later than your period) to increase revolutions of the main engines of the high speed cruiser USS Wampanoag. The gears supposedly wore 5/8in during the vessel's sea trial.
You are to be congratulated on building this model of a usual and unique craft. You are doing a great job.
Roger
-
Roger Pellett got a reaction from michael mott in Anchor Hoy c. 1825 by Maury S - FINISHED - 1:48 - Harbor craft - POF
Maury,
Yes and no. The vertical forces thansferred to the vessel's structure by the gear's weight are primarily resisted by the ball race but as this race is not rigid it would be expected to deflect and some of this load would have been transferred to the keelson.
The gear's effect on the center of gravity of the vessel's hull would be at the vertical height of a plane passing through its vertical centerline.
Are you sure that this gear was a one piece casting? It could have been built up from cast segments bolted together, cast iron segments bolted to a wooden spoked wheel, or it could have been entirely wooden like those seen in water mills.
Roger
-
Roger Pellett reacted to KeithAug in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
I decided to have a bit of a diversion from the deck house and made the crew hatch.
The detail on the plans was really quite scant.
I tend to rely on internet photos where the plan is less detailed than desirable, however in the case of the crew hatch virtually nothing was available. I was left to rely on the "how would I have done it?" approach. In particular the doors are a figment of my imagination. After all if they don't exist it's going to be pretty wet below.
I started with the sides - cut to shape from 1/32 inch ply and then clad in mahogany.
I decided not to make the hatch cover mobile but represented it partially open - to give a bit of a view inside (although not much to see)
I did however make the hatch tracks correctly as a "c" section. The "c"was constructed from 3 planks each .030 inch thick. To get the curve the wood was soaked in boiling water and then the body of the hatch was used as the former. Note the wife's cotton used to hold the planks in place while drying and thereafter gluing.
Some time later all was complete and ready for the poly.
This gives an idea of scale. The callipers are set to 1 inch.
-
Roger Pellett got a reaction from mtaylor in Anchor Hoy c. 1825 by Maury S - FINISHED - 1:48 - Harbor craft - POF
Maury,
Yes and no. The vertical forces thansferred to the vessel's structure by the gear's weight are primarily resisted by the ball race but as this race is not rigid it would be expected to deflect and some of this load would have been transferred to the keelson.
The gear's effect on the center of gravity of the vessel's hull would be at the vertical height of a plane passing through its vertical centerline.
Are you sure that this gear was a one piece casting? It could have been built up from cast segments bolted together, cast iron segments bolted to a wooden spoked wheel, or it could have been entirely wooden like those seen in water mills.
Roger
-
Roger Pellett got a reaction from druxey in Anchor Hoy c. 1825 by Maury S - FINISHED - 1:48 - Harbor craft - POF
Maury,
Yes and no. The vertical forces thansferred to the vessel's structure by the gear's weight are primarily resisted by the ball race but as this race is not rigid it would be expected to deflect and some of this load would have been transferred to the keelson.
The gear's effect on the center of gravity of the vessel's hull would be at the vertical height of a plane passing through its vertical centerline.
Are you sure that this gear was a one piece casting? It could have been built up from cast segments bolted together, cast iron segments bolted to a wooden spoked wheel, or it could have been entirely wooden like those seen in water mills.
Roger
-
Roger Pellett got a reaction from Canute in Paints available in Australia
Over many years I have used enamels, and laquers - Floquill, Humbrol, and even indoor alkyd trim paint mixed in "historic colors." All produced results that I considered to be satisfactory with varying levels of difficulty.
After reading articles written by Eric Ronnberg and Rob Napier in the Nautical Research Journal I decided to try acrylics artist's colors on my latest project. I have been mixing these to develop my own colors that I believe to be period correct. I mix the colors from the tubes to make the pigment. I add some matt medium, and then thin with water for a consistency that will work with my air brush. Thicker mixes can be used for brushing.
I am sold on this approach. By spraying multiple very thin coats runs are not a problem. Clean up is easy, and the paint dries quickly. The paint produces a smooth egg shell finish that works with my 1:32 modeling scale. It was surprisingly easy to mix colors by eye. The colors are available at any artist supply store.
Roger
-
Roger Pellett got a reaction from mtaylor in Paints available in Australia
Over many years I have used enamels, and laquers - Floquill, Humbrol, and even indoor alkyd trim paint mixed in "historic colors." All produced results that I considered to be satisfactory with varying levels of difficulty.
After reading articles written by Eric Ronnberg and Rob Napier in the Nautical Research Journal I decided to try acrylics artist's colors on my latest project. I have been mixing these to develop my own colors that I believe to be period correct. I mix the colors from the tubes to make the pigment. I add some matt medium, and then thin with water for a consistency that will work with my air brush. Thicker mixes can be used for brushing.
I am sold on this approach. By spraying multiple very thin coats runs are not a problem. Clean up is easy, and the paint dries quickly. The paint produces a smooth egg shell finish that works with my 1:32 modeling scale. It was surprisingly easy to mix colors by eye. The colors are available at any artist supply store.
Roger
-
Roger Pellett reacted to Jaxboat in Contact cement for hull plating
Solvent based contact cement will work for copper plates but there are two disadvantages. First, the solvent is way bad for you and second the cement will ultimately oxidize and fail. I suggest using super glue. A small drop in the center will do. You should also make sure you have good ventilation with super glue. Modellers Shipyard (Australia) has a very good DVD on how to apply copper plates. Well worth the cost.
-
-
Roger Pellett got a reaction from thibaultron in Contact cement for hull plating
For more years than I care to remember I have been building a model of the Great Lakes Steamship Benjamin Noble. A couple of years ago, I started to plate the hull with brass sheet stock using 3M transfer tape. This tape is adhesive deposited on a waxed paper backing. The tape is applied to the brass plate, the paper is peeled off and the plate is now coated with adhesive. Plates are approximately 1in by 3in. After laying down one strake of plating, I let the hull sit for a week or so and found that the tape had failed to hold the corners of the plates. The model has been sitting while I work on another project.
I am now to the point to try again, this time using copper sheet secured with contact cement but the brands of cement that I have found all say don't use with copper or copper bearing alloys. Considering the number of copper sheathed hulls that have been made, someone must have discovered a contact cement that is compatible with copper.
Any advice?
Roger
-
Roger Pellett got a reaction from thibaultron in Contact cement for hull plating
Thanks, Jaager,
I have a roll of .005 in copper approx 1/2 in at scale. Not too over scale for hull plating. Much softer than brass so maybe it might work better than the harder brass, which I hadn't annealed. Maybe this might work with the transfer tape.
Roger
Our Emblem ®
