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Best protractor for aligning to cantilever

I am trying to find a protractor that makes it easy to align the cantilever rather than the body to a grid. I have a cartridge where the cantilever is not perfectly parallel with the body. It's a Grado and the plastic on the front of the body is not seated correctly or something. The cantilever is parallel to the back, but the front being out of alignment makes it hard to align to the body. It is merely a cosmetic issue so I would like to keep the cartridge.
hyperreal
albertporter's avatar
albertporter
4,927 posts
 
I bought the Wallytractor Universal and love it. It will solve the problem you're asking about and then some.

The good thing about the Wally Universal, it works on linear track, and pivot arms. Pivot arms it works with include 9" and 12" in both Baerwald and Löfgren formulas.

http://www.simplyblack.net/WVC/index_wally.html
hamburg
69 posts
 
What is the advantage of the Wally over using the setup included with the VPI and JMW arms? The needle needs to be placed over points on the curve. If it is really easier to be more accurate then I would get it But it is $250.
riffer
362 posts
 
I am not sure about the Universal, as I do not have one, but my older Wally Tractors have parallel lines scratched in a mirror that allows the user to eliminate parallax while aligning the cantilever. Look over the instructions to see what I am talking about.

As with all recommendations of the Wally tools, understand that there are considerable problems actually getting them from Wally. Do a search here and on othet boards for more information.
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