Changing units of measure

 From:  BurrMan
4131.4 In reply to 4131.3 
If you have a file that has no unit system, then change it to milli's, there will be no scaling happen.. It will now just be 30 mm... For the file you just posted, I made a workspace of "no system units" then "Imported" the file in.. I set the units to "Inches" which set the rail at 30 inches. Then I set the units to millimeters and the rail was scaled to the 762 mm you were looking for...