Center Rail Pin Locater Jig

[Farrell]

Yes indeed Conrad, one jig for each size balance rail pin (or I wonder if
you could just drill several different sized holes in the one jig???).

I wondered about enlarging the hole over time though. Perhaps it would be
better to use a self-centering punch to mark the key bottom with the jig,
remove the jig, and then drill. I think I will try that.

Terry Farrell

> >Dale Erwin's post on the Kaplan jig made me feel like I should share
this.
> >Tonight I made a little jig that I had been intending to make for the
past
> >six months - the center rail pin locator jig that Bill Spurlock describes
> >in his October 1983 PTG Journal article. It is used to repair bad pulley
> >keys. Below are two pictures. Haven't used it yet, but I'm quite sure it
> >will work well.
> >
> >Terry Farrell
> >
>
> Terry,
>
> I made the same things shortly after that article came out. As I recall,
> (looking at a remnant) one has to make one for each use and size balance
> pin.  The jig wears fast enough to be unreliable after one or two uses.
>
> I have a slew of key repair jobs facing me again, but this time I have the
> Onesti system.  I'm estimating that amortization of the co$t of that
system
> is about three sets.

> Conrad Hoffsommer - Music Technician