What is the difference between the primary and the secondary liner bushings?
A. The only difference between the primary and the secondary liner bushings is that the secondary liner bushing has an oversized I.D. to accommodate the wider center distance tolerance on your fixture. • Q. Is there a preferable location for the liner bushing? A. The location of the liner bushing is not critical, but in order to be consistent, we recommend that wherever possible, locate the liner bushings at bottom left and at top right. • Q. What are the advantages of using the Ball Lock System over the conventional method of dowel pins and cap screws? A. Both locating and locking are accomplished in the same motion. Two and one half turns are the maximum needed to lock (whereas a 1/213 cap screw with one and a half diameters of thread engagement would need ten turns to lock). On C.N.C. machines, the repeatability of fixture locations makes indicating of the fixture unnecessary. • Q. If I need to recess the fixture plate in order to have a clear surface, what do I have to do? A. Count
