Sperzel Set Pin Distance

[duosonic]

I was wondering if anyone knows the distance from the center of the shaft on a Sperzel tuner and the set pin.  I'm measuring 15/32" and I want to check my number against other peoples measurements to double check.

I'm trying to layout the template in a CAD program.  For the set pin I plan to use a 7/64" hole.  I just want to get the distance right.  I plan on making  3x3 and a 6-inline templates.

Thanks,
Rob

 

[Cagey]

Will this help?

It doesn't give the dimension you're asking for, but there are enough of the others that it can be derived.

 

[AutoBat]

15/32nds & 7/64ths look to be the closest values to the schematics

 

[Cagey]

15/32" (.46875") is close, but 7/64" (.10937")?

The actual value according to the drawing works out to .462"

 

[AutoBat]

I've no experience with CAD programs, but couldn't you just use the decimal values and put in the exact values?
If so that pic is beyond awesome.

 

[Cagey]

Actually, that's the preferred method. Fractions usually aren't exact enough for machine work. Plus, your better CAD packages can auto-dimension if you use real numbers.

 

[line6man]

What exactly is the purpose of this? Don't those tuners come with a drilling template?

 

[Bruno]

Sorry for ot,
but I'm the only one which sperzel t/l tuners don't like for functionality (only 12:1 ratio) and aesthetics? I've Sperzel T/L but I don't know if I buy it again...

 

[swarfrat]

What I did on my Sperzel knockoffs was just just use a straight edge (trem cover plate)  to square up all the tuning keys along their flat side, then drill the holes.

 

[Johnfv]

...Don't those tuners come with a drilling template?

My Sperzels came with a little cardboard template for a single tuner (so you can do one at a time). If you were going to do it often I could see a more proper template being handy. Stew Mac will sell you a metal single tuner jig for $37.50

 

[duosonic]

Thanks for the pic.  I should of checked that on the Stew Mac site.  The purpose is to make a template I can just align and clamp on to the headstock, then I'll just drill the holes.  The cardboard alignment is driving me nuts and I have to do it one at a time.  Rather then making a template by hand I thought I could get one made via CNC hence the question.  Just trying to save some time and make things a little easier.  I've got templates for other things just not sperzels.  I just started using them a few months back.  Indeed the measurements will end up being in mm.  For now I was just measuring with my straight edge.  thanks everyone for help.

rob

 

[swarfrat]

Ah - when I posted this on my blackberry I was in text only mode and didn't catch 'pin'. My answer was about lining up tuner holes for locating screws rather than hidden locating pins.

 

[Cagey]

Indeed the measurements will end up being in mm.

The measurements on that drawing are in thousandths of an inch, not millimeters.