RWL Posted February 8, 2022 Author Share Posted February 8, 2022 9 hours ago, Daveylocker said: Harbor Freight also sells an assorted set of these type of hole punches that should work well if they are large enough. I truly do admire your machining abilities thought, along with the photography. Fine craftsmanship! That's what I have for the larger pads. They are not very sharp and would benefit from a sharpening. Also, there is a jump from 1/2" to 5/8" and the set would benefit from a 9/16" punch for concertina work. In an old post, Mike Pierceall mentions making a punch from a piece of pipe. As I thought about it this evening after having cut the 'sides' off of a 5/8" pad to fit one of the oval holes in my instrument, I don't see any reason why the pads have to be round. They're probably round because it was a convenient way for the factory to produce lots of pads and round cutting dies probably being easier to make than square ones, but for a one-off, I don't see why the pads couldn't be square or rectangular and it would avoid having to buy punches altogether. At this point I'm making mine round because I'm only making a few pads and I want them to be similar to what's in the instrument, but if I were doing all of the pads, I'd consider making them rectangular. It would be a lot easier to cut them in bulk with a straight edge and a razor knife. Quote Link to comment Share on other sites More sharing options...
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