Hi Norman, One missing detail: how do you hold the button itself and ensure it is square to the drill press? Fred On Aug 23, 2010, at 5:07 PM, Norman Cantrell wrote: > It is also possible to thread the let off buttons before trying to > mount them by mounting a small tap into a drill press and lowering > the tap into the pre-drilled hole. The taper on the tap will self > center and you can turn the quill by hand or by pulling on the V- > belt to spin the chuck into the wood. McMaster Carr sells taps as > small as 2-56 and 3-48 one of which should match rather closely the > threads on the let off wires. Once they are pre-threaded they will > align nicely when installed. If you want an exact match on the > threads and don't want to order a tap you can always find a let off > eyescrew with the same threads you are using and snip off the eye, > mount the remainder in the drill press chuck and with a mill file > introduce a taper onto the wire by filing three sides flat and > angled toward the center of the wire to make tapered thread > cutters. This will make a tap that will work for several sets of > wooden buttons. > > Regards > > Norman Cantrell, Registered Piano Technician -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut.php/attachments/20100824/20a20ac5/attachment.htm>
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