Messages

1

General Mach Discussion / Re: losing zero point

« on: April 19, 2010, 03:35:15 AM »

Unfortunately, I don't have a wiring diagram. I went to website at the following link but didn't find a wiring diagram there either.

http://microproto.com/driver.htm

Is there something I can do to help troubleshoot the problem?

2

General Mach Discussion / Re: losing zero point

« on: April 19, 2010, 02:48:00 AM »

Hi hood,

Thanks for helping. I'm not exactly sure how to answer the question about how the encoders connect but will try my best. The motor driver has a DB-25  that's used to connect to the encoders from all the motors and there's another DB-25 that's used to connect from the motor driver to the parallel port of a PC. The only indication that I get with respect to the possibility that the encoders are working correctly is that MACH 3 doesn't quit running. If there's a bind and the stepper gets, MACH 3 will quit running and then the reset button (I'm talking about the reset button in the MACH 3 software) needs to be pressed. When I encounter this problem with the z-axis, the machine is running as if there's nothing wrong so this tells me that the encoders are where they expect to be. I hope I've described this well.

3

General Mach Discussion / losing zero point

« on: April 18, 2010, 08:26:44 PM »

Hi all,

I'm new to mach 3 and am having a problem I can't seem to solve. I'm running R2.63 with a Taig DSLS 3000. I'm using a fairly long program and I find that after the machine runs for between 30 and 60 minutes, the z-axis will be significantly off. The zero point for this axis might be .050" (or more) higher than where it should be. I've tried resetting to zero many times and just can't seem to get the machine to remember where zero is. This machine is equipped with encoders that will cause mach to stop if something binds but there is NO binding. The software just seems to lose where it is for no reason. Any help would be greatly appreciated.

Thanks