I Need A Better Protractor On Compound Of My G4003g

737mechanic

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Oct 13, 2013
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So my old 1937 model year atlas lathe had a protractor the entire circumference of the compound that I find myself missing more and more. The protractor on the grizzly goes to 60 degrees and to find the true 29.5 degree mark for threading I usedmy digital protractor and marked the compound for future reference.

Has anyone else found the protractor a problem or have you just been working with it.
 
The protractor on my G4003G is just too coarse. I don't think I've ever even tried to use it. If I need an angle that matters I use a gage block or protractor.
 
You can use gage blocks and get the angle as accurate as the side of the cross slide is to the bed ways, using them like a sine bar. After taking the time to do it, mark your compound and cross slide permanently so you never have to do it again for normal work.
 
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