---------------------- multipart/alternative attachment Thanks Bob. Your reply prompts another question I'd like to get your reponse to. You say you drill out of piano. How is it you insure that the pin holes are exactomundo - right on the button-no bones about it - perfectly in the right spots each and every time. I can see an open face block being a bit more forgiving here, a non bushed webbed plate a bit less, and a bushed plate most demanding. Thanks RicB BobDavis88@aol.com wrote: > > I drill pinblocks outside of the piano, on a Jet floor-standing drill > press turning at 870 RPM. I have compressed air blowing on the bit. I > do a test patch on each panel to get my feed speed right. My surprise > at the higher torque figures obtained by others is making me wonder > about the runout of the chuck or spindle. I'll look into it. The chuck > is the heavy 1/2" one that came with the press. I suppose it's > replaceable. I don't know about adjustments for the spindle. > > It's been my impression that maple blocks are softer than they used to > be, but maybe it's my equipment! I'll drill some test holes in the old > block along with the next new block I drill. > > Bob Davis -- Richard Brekne RPT, N.P.T.F. UiB, Bergen, Norway mailto:rbrekne@broadpark.no http://home.broadpark.no/~rbrekne/ricmain.html http://www.hf.uib.no/grieg/personer/cv_RB.html ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20/eb/3b/04/attachment.htm ---------------------- multipart/alternative attachment--
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