Roger, I saw your post shortly after I posted my second one. Thsnks for the forsner idea - I appreciate your input. I'll be looking at that soon. Hope all went well on your trip south after seeing us. Sincerely, Tom P.S. My son, Ian, was quite impressed (he's a salesman, too). >From: Roger Jolly <baldyam@sk.sympatico.ca> >Reply-To: pianotech@ptg.org >To: pianotech@ptg.org >Subject: Re: Enlarging Castor Recesses >Date: Thu, 09 Dec 1999 23:42:11 -0600 > >Hi Tom, > Nice to see you in Regina last week. > I use a 3" dia forsner bit, they are availiable from Lee Valley Tools in >Edmonton. You will need a 3/4" drill heavy duty and slow speed to get the >job done. >Take a 3/4" piece of board and drill a hole right thro' it with the bit. >Use 2 nails to tack the home made template over the hole, the board will >act as a guide and stop the drill jumping all over the place. >It is important to measure the distance from the bottom of the mounting >plate to the bottom of the wheels of both the old and new casters, to >ensure that pedal height is correct. >You will need some kind of depth gauge to make any corrections in depth. >Drill out the old screw holes and plug them with maple dowel and epoxy, do >not use them for the new screw holes, you will get better holding strength >with fresh holes into side grain. >The reason for plugging the holes is to make sure there is lots of solid >material supporting the shaft. The pressure in this area can be several >hundred pounds per square inch. >The other important thing to watch is shaft hole diameter, bore out the old >holes and use the maple sleeves, availiable from Pianophile. Glue them in >for a long lasting tight fit. >Screw the new casters on with 2" # 8 screws. >You may have to trim some material off the corners of some trap work boards >to obtain clearance of swivel. >Regards Roger > > > >At 07:58 PM 09/12/99 -0800, you wrote: > >Hi, John! > > > > Thanks for starting this thread; hopefully we'll both get an answer. > > > > I have done a number of these caster jobs on older uprights. I started > >with just a chisel, and then hit on the rotary file in my drill. I use > >these in combination, now. But, that's as far as I've gotten, too. > > > > I wondered about something like a hole saw, but it seems a little >flimsy > >for the type of cutting required; also, I don't know as I can easily get > >one in the diameter I need for good clearance. I like the chisel to >finish > >as a bevel is needed rather that a straight sided cut. > > > > Anyway, hope the answers out there. > > > > Tom > > > > > > > >>From: John R Fortiner <pianoserv440@juno.com> > >>Reply-To: pianotech@ptg.org > >>To: pianotech@ptg.org > >>Subject: Enlarging Castor Recesses > >>Date: Thu, 9 Dec 1999 13:38:25 -0700 > >> > >>What is/are your favorite methods/tool(s) for enlarging the recess that > >>castors fit into on the bottom of pianos such as when fitting double > >>wheel castors so the arm of the castor doesn't get hung up against the > >>existing recess? > >>I've used chisels and rotary files chucked into a drill for this - bad > >>wording - I never chucked the chisels into a drill :-), but feel there > >>has to be a better way. > >> > >>John Fortiner > >>Billings, MT. > >>___________________________________________________________________ > >>Why pay more to get Web access? > >>Try Juno for FREE -- then it's just $9.95/month if you act NOW! > >>Get your free software today: http://dl.www.juno.com/dynoget/tagj. > > > >______________________________________________________ > >Get Your Private, Free Email at http://www.hotmail.com > > >Roger Jolly >Saskatoon, Canada. >306-665-0213 >Fax 652-0505 ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com
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