Jim1130 Report post Posted December 2, 2011 (edited) Hello all. I'm very new to this forum but am truly amazed with the huge content and help available. What a find! I've been getting requests for some cuffs which I thought would be reasonably easy to build. What I've run into is the problem with making a "square" cuff - one that would sit flat when stood on end - and especially at the end overlaps (like when using snaps) once on the arm. I've had one large wrist with a large taper and one very small wrist with hardly any taper - I' ve not found an easy way to deal with this. Can anyone tell me an easy way to figure the curve for a given set of measurements? These folks want a snug fit both top and bottom. Both of these are in the 4" to 3" width range. Thanks, Jim Edited December 2, 2011 by Jim1130 Quote Share this post Link to post Share on other sites
556guy Report post Posted December 2, 2011 What you are looking for is called a "frustum" of a cone. You might have to read through these links once or twice before it makes sense. I know I had to and yes, my head exploded a few times the first time I tried it. Here are a few frustrum pattern development links : http://www.tintinker...one_pattern.pdf http://schools.spsd....ent%20Notes.pdf http://www.snipsmag....000f932a8c0____ Here's a link to a free download of a book for pattern development: http://www.craftsman...ttern-book.html OR....You could just get some brown wrapping paper and start cutting until you get it right. Either way works :-) Hope this helps... Tom Hello all. I'm very new to this forum but am truly amazed with the huge content and help available. What a find! I've been getting requests for some cuffs which I thought would be reasonably easy to build. What I've run into is the problem with making a "square" cuff - one that would sit flat when stood on end - and especially at the end overlaps (like when using snaps) once on the arm. I've had one large wrist with a large taper and one very small wrist with hardly any taper - I' ve not found an easy way to deal with this. Can anyone tell me an easy way to figure the curve for a given set of measurements? These folks want a snug fit both top and bottom. Both of these are in the 4" to 3" width range. Thanks, Jim Quote Share this post Link to post Share on other sites
Jim1130 Report post Posted December 2, 2011 What you are looking for is called a "frustum" of a cone. You might have to read through these links once or twice before it makes sense. I know I had to and yes, my head exploded a few times the first time I tried it. Here are a few frustrum pattern development links : http://www.tintinker...one_pattern.pdf http://schools.spsd....ent%20Notes.pdf http://www.snipsmag....000f932a8c0____ Here's a link to a free download of a book for pattern development: http://www.craftsman...ttern-book.html OR....You could just get some brown wrapping paper and start cutting until you get it right. Either way works :-) Hope this helps... Tom Hey Tom, I was close - I had two very large circles radiating out from a central point. By the way, I already went through lots of brown paper. Thanks for the great help. Jim Quote Share this post Link to post Share on other sites
HellfireJack Report post Posted December 2, 2011 Here are some patterns for cowboy cuffs from a user named Jim here. http://leatherworker.net/forum/index.php?showtopic=35455 Quote Share this post Link to post Share on other sites
Jim1130 Report post Posted December 3, 2011 Here are some patterns for cowboy cuffs from a user named Jim here. http://leatherworker...showtopic=35455 Yes, Jim's patterns and size guide is excellent for cowboy cuffs. What I'm working on is more silversmith work mounted on short cuffs. By knowing how to figure the curves for each measurement, then I can provide a good, snug, custom fit. I was not able to do that with Jim's guide. Thanks for the link. Jim Quote Share this post Link to post Share on other sites