I was just concerned with the .005 because I will be doing some circle milling. I'm not as concerned with it on straight milling. Since it moves in all directions, I wasn't sure how that would have an additive effect on the outcome.
There isn't really any side to side play on the table now. I got rid of most if not all of that from lapping the dovetails. What I'm talking about is the linear movement that is inline with the screw. If I take my dial indicator and put it on the z column and center it in the table. Then push and pull on the table with the y-axis. There is about 0.004 play in the table. I'm assuming that this is from the nut moving on the screw.
I have the preload on the handle bearings tight enough to be snug, but not enough to interfer with turning the handle. I'm thinking about putting a wave washer or two in there. To see if that helps.
As for the dro. I won't be doing that, because I plan to cnc the mill as soon as possible. I just need to lay out the materials and start machine. Also I need to decide if I'm gonna start with the acme screws to get it going, then make another kick later for ballscrews. I've spent all of my allowance for a while. *grins*
I have to pick out a breakout board then track down some instructions how to wire all of this stuff up.
I also need to decide on a cad/cam solution. I have mach3 for driving the machine and a 2.8ghz pc to power it.
Coming down the final slope!  |