Terry, I'm not sure how you do it, but when insert the caul the bushing cloth moves with it. Bill's instructions mention this. You might very well be inserting too much cloth into the mortice...3/8 of inch? I always have to keep a little tension on the bushing cloth strip. This doesn't seem like a problem to me... David I. ----- Original message ----------------------------------------> From: Greg Newell <gnewell@ameritech.net> To: Pianotech <pianotech@ptg.org> Received: Mon, 15 Nov 2004 18:18:54 -0500 Subject: Re: making key bushing cauls >Hmmmmmm, I was describing the method used long before Spurlock cauls. This >is the method I used with brass cauls before I purchased the Bushmaster. >Greg Newell >At 04:25 PM 11/15/2004, you wrote: >>Hmmmm, I don't know exactly what process you describe below, but with the >>Spurlock system, all you do is lay the cloth across the mortice (no holding >>of both ends of anything), insert caul and cut cloth with razor (cloth >>doesn't get dragged anywhere) - move on to next key..... >> >>Terry Farrell >> >>----- Original Message ----- >>From: "Greg Newell" <gnewell@ameritech.net> >>To: "Pianotech" <pianotech@ptg.org> >>Sent: Monday, November 15, 2004 4:19 PM >>Subject: RE: making key bushing cauls >> >> >> > >> > Ron, >> > I use the Bushmaster system and find it to be, as you've said, an >> > incredible waste of bushing cloth (much more that 3 times). I suspect that >> > the Spurlock caul users are taught to use the same method I did before the >> > Bushmaster. I used to lay the cloth over the mortise and when it touched >> > the top of the opposite side of the mortise it was the correct length. The >> > problem I always had with that was holding both ends of cloth immobile >> > while pushing in the cloth which invariably tried to drag the cloth with >>it >> > into the hole. I like the speed of the Bushmaster but really hate the >>waste. >> > >> > Greg Newell >> > >> > >> > >> > >> > >> > At 12:49 PM 11/15/2004, you wrote: >> > >> > >>I'd like to see a side-by-side trial of the "Bushmaster" method and the >> > >>Spurlock system. I use the Spurlock system and love it, but I have never >> > >>tried the other. Anyone used both? Opinions? I recall can't imagine >>anything >> > >>slicker than the Spurlock system. >> > >> >> > >>Terry Farrell >> > >> >> > >>I've used both and have come up with a hybrid system: I use the Spurlock >> > >>system with hot hide glue, but with brass cauls. The thickest brass >>caul is >> > >>used to hold the first bushing in place, the required size is used for >>the >> > >>other side. Then I place a clothes iron (set on cotton) on top of the >>final >> > >>cauls. This reactivates the hide glue, sizes the bushing hole in the >>key >> > >>and sets the cloth bushing to the caul. Let stand over night. The key >>hole >> > >>sizing step is eliminated, as well as any easing. Steaming the old >>bushings >> > >>out will also size the balance rail. >> > >> >> > >>Paul C >> > > >> > >In the late 70's, I made a tool that works somewhat like the Bushmaster, >> > >copied from an existing tool someone had that originally came from who >> > >knows where. Both of these tools lacked a means of indexing the depth of >> > >the cloth, so my copy didn't work too well. For years, I used hide glue, >> > >cauls, and two pieces of appropriate thickness cloth, inserted into the >> > >mortise, caul inserted, and trimmed flush with the caul with a knife. >>This >> > >worked, ok, with near zero waste of bushing cloth, but was hard to gage >> > >the depth of the bushing in the mortise. Lately, I've used my old >>homemade >> > >tool, re-modified with ears to index the cloth to proper depth (like the >> > >Bushmaster). It's quick and wastes three times as much bushing cloth as >>is >> > >glued in the keys. Unnecessary waste offends me, but the uniformity of >>the >> > >job is just what I was after, so that's where I currently am. >> > > >> > >I suppose if I did key bushings on a weekly basis I might be doing it >> > >differently, since it always seems to take me half a set to get >> > >comfortable with it and in rhythm, this is easy and mindless enough a >> > >system for me to run it. When I get tired of looking at my funky little >> > >tool, or it finally falls apart and dies, I'll probably buy a Bushmaster. >> > > >> > >So how do you Spurlock method bushers index cloth depth, and are you >>happy >> > >with the result? >> > > >> > >Ron N >> > > >> > >_______________________________________________ >> > >pianotech list info: https://www.moypiano.com/resources/#archives >> > >> > Greg Newell >> > Greg's piano Forté >> > mailto:gnewell@ameritech.net >> > >> > _______________________________________________ >> > pianotech list info: https://www.moypiano.com/resources/#archives >> > >> >> >>_______________________________________________ >>pianotech list info: https://www.moypiano.com/resources/#archives >Greg Newell >Greg's piano Forté >mailto:gnewell@ameritech.net >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives
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