gofar99 Messages: 1969 Registered: May 2010 Location: Southern Arizona
Illuminati (5th Degree)
+1 on vinylengine. Great folks and lots of help. There are several "printable" protractors in the reference section. Generally the only thing you need to know is the effective length of the arm. Many are 222 or 235 millimeters. A few are shorter or longer though. The length is given in the specs for the arm. Probably someone either here or on VE will know immediately what it is for your arm. Mine are all 235.