Originally Posted by
Goonk
I have Standard 4x2 as well. I am using a Bosch 1617. I haven't checked mine very closely in a while, but I recently upgraded to Mach 4 and did a quick check. My results were better than that. I think about +/- 0.010" is typical for my setup. When I was setting up my machine, I looked at several videos on Google about the subject. A lot of them were focused on steps and such. I got the impression from the Avid info that there wasn't much to gain there, but it might be worth looking at. I tend to move the machine pretty slow compared to what I read other folks do, Not sure that's a factor. I built a holder for a dial indicator and checked using that originally. The results were pretty good. I'm thinking less than the 0.010" I was shooting for. I'm not really sure what to look at. I have had dimensional issues when I failed to secure he work piece real well. Any bad bearings? I had a cracked bearing that would cause funny stuff once. I tend to follow the rule of thumb for depth of cut. Oh, and I added a precision collet - great investment. Wish I had more ideas for you. I sure hope you get this figured out. I know it is frustrating. My main thought for responding was that I have a similar setup and without any real fussing get better results, so I would think yours would too. Let us know what you figure out. Oh, one last thought, I have read about people reporting missing steps and such due to electronic interference (via dust collector, etc.). Material and tooling can play a part as well. Is the dust clearing out of the cut?