Adustable Parallel !

Hi Guys,

Following some notes and info from Bob about adjustable parallels, I decided to have a go at making one from some gauge plate that I have that has been sitting unused in its wrapper for well over 30 years. It is 3/4" of an inch by 5/16" inches, (19.3 mm X 8.04 mm) for those that want metric measurements. The wrapper also has details printed on it for hardening and tempering it. There are a few speckles of rust on it but nothing that would cause a problem. Quite surprising after all this time. :oo:

Adjustable Parallel.png
This is the drawing of the proposed parallel. Two of these are needed. I've used 8 degrees as the slope angle which should allow for about 55 mm extension. A groove of 3 mm has been used to hold the two parts together. I'll take some pictures later.
Attached Images

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