[bill south]

Hey Al/Gus;
Thanks for the info. The display is not the original that came with the machine. The original counter had a weak diaplay, not readable. So, I swapped the original "millmate" with the acu-rite III which according to my supplier (backyard machine reseller) was a direct replacement. The scales I'm using are the "Absolute Zero II" which are suppose to be compatible with the display. I've looked on the acu-rite site and cannot find any information on this particular scale. It is a ten micron .0005" scale as listed on the scale legend.
Also, the error is somewhat repeatable as measured with a cheap dial indicator. I've tried grounding and no help.
I've read and compared several of the manuals, including the accurite II which does not match my board layout. So, again no help.
Al, the scales are the old spring loaded finger type heads so wear is an issue. But, I'm puzzled why both axis have approximately the same error knowing they both should not have the same wear (I guess). It still seems to me a setup problem with the counter but I just can't figure it out. None of the acu-rite manuals match this board layout. I'm going to send acu-rite the serial number tomorrow and see if they can help. I guess I should have done that before bothering the members of the forum.
I do have an electronics/mechanical background so, I shoud be able to figure this out. I really don't want to spend any more money on this manual setup because I'm eventurlly going the switch the bridgeport to cnc. I've already installed ball screws and purchased the mounts. I just wanted to get some manual time on the machine since my rebuilding it. I already have a sherline cnc and a lathemaster cnc so I'm not in any hurry. Just want the bridgeport quality and mussle.
Sorry this post is so long guys but I'm kinda frustrated trying to find the answer to a simple question. How do you set this damn thing up????
Best regards!
Have a good day.
Bill