I am wondering what the purpose of the leadscrew compensation table is. The manual pretty much just says yes the table exists and no you shouldn't touch it.
Is this used for compensating travel or just for adjusting backlash or is there another parameter for that?
I ask because I did some error mapping of my '93 VF3 over the weekend and found that there is some slight backlash in X, and that my Y and Z axes are not getting the exact perfect amount of travel. I see about 19.995/20" in Y and 17.997/18" in Z. Not substantial errors considering that parts it cuts, but if there was a way to improve that I would love to give it a shot. I took measurements every 2" so can I extrapolate that data into the .5" increments the table uses and fill that in? Would these be + or - entries? If I do need to hit really tight tolerances and can't use the controller table I can always make a spreadsheet and comp programs before they load but that would be a huge pain.
Any advice would be appreciated!
Attachment 298114
Y error
Attachment 298116
Z error