<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40" xmlns:ns1="http://schemas.microsoft.com/office/2004/12/omml" xmlns:ns0="urn:schemas-microsoft-com:office:smarttags"> <head> <meta http-equiv=Content-Type content="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PostalCode"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="State"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="City"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place"/>  <style>  </style>  </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> I switched vendors for keytops (with fronts).  The ones I buy from Pianotek do not chip when notching, routing, or filing.  The notching is done on the table saw with the Frued 10” “Rip to Glue Line” blade…I think its #P410.  <o:p></o:p> Paul C<o:p></o:p> <o:p> </o:p> Great tip. I’ll try them.<o:p></o:p> <o:p> </o:p> You have a picture of how you notch with the table saw?<o:p></o:p> <div> Dean<o:p></o:p> <u1:PERSONNAME u2:st="on">Dean May</u1:PERSONNAME>             cell 812.239.3359 <o:p></o:p> PianoRebuilders.com   812.235.5272 <o:p></o:p> <u1:PLACE u2:st="on"><u1:CITY u2:st="on"><st1:place w:st="on"><st1:City w:st="on"><u3:place u4:st="on"><u3:City u4:st="on">Terre Haute</st1:City></u3:place></u1:CITY></u3:City> <u1:STATE u2:st="on"><st1:State u5:st="on"><st1:State w:st="on">IN</st1:State></u1:STATE></st1:State>  <u1:POSTALCODE u2:st="on"><st1:PostalCode u6:st="on"><st1:PostalCode w:st="on">47802</st1:PostalCode></u1:POSTALCODE></st1:PostalCode></st1:place></u1:PLACE><o:p></o:p> </div> <o:p> </o:p> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center tabindex=-1> </div> From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Paul Chick Sent: Saturday, March 15, 2008 9:17 AM To: 'Pianotech List' Subject: RE: key trimming bit<o:p></o:p> </div> <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> Dean,<o:p></o:p> <o:p> </o:p> I had the same problem which I finally solved by heating the keytops before I notch them.  I came to believe that the keytops are too brittle.  <o:p></o:p> <o:p> </o:p> I put the keys under a lamp with my Dampp Chaser digital temperature and humidity gauge laying on top of them.  When they are about 80 degrees I start notching, and I move the key past the router bit VERY slowly. Using this method I have had absolutely no chipping.<o:p></o:p> <o:p> </o:p> David Weiss<o:p></o:p> <o:p> </o:p> <o:p> </o:p> I am using a Spurlock style set up to trim my keytops and am having trouble with the plastic chipping out on the notch cutting station. I am using a 1/2 inch spiral carbide up cut bit from McMaster Carr (27395A31). Is there a better router bit I can be using here? <o:p></o:p> <o:p> </o:p> Dean<o:p></o:p> <o:p> </o:p> <o:p> </o:p> </div> </body> </html>