Centering guide bushings...fail
Hi forum, it's my first attempt to use guide bushings.
I am not able to center my Woodcraft Guide Bushings (brass) in my PC 693 or Craftsman 320.27683. Both routers have their original base plates and are designed for bushings. I have followed some suggestions from youtube about centering the bushing on the bit by rotating the base plate one mounting screw at a time until the bushing is centered. No matter what I do the bushing is not near center. I can only get it down to about 1/16" off center.
The bushings are sloppy in the base plate. Actually, when measuring the outside diameter of each guide bushing they vary quite a bit. Is this common? I paid $35 for this set. Should I have expected tighter tolerances?
Is there any remedy for keeping them from slopping around? I have resorted to wrenching on the bushing locknut which makes it tight, but, I cannot get them adjusted close to center while wrenching on them. I don't have time to order a centering cone/pin. Can I make one on the wood lathe? If I make one do I mount the cone in the chuck first, then mount the base plate and bushing in that order?