jerryk
10-23-2010, 03:45 PM
Gentleman,
I recently upgraded my prt to the new control box with the 4gdrivers. Install went well, but have been pulling hair over a problem with the z height. I have been working with Frank but we cannot seem to solve the problem. unit values are right, everything is mechanically tight and square. I run previously good files and now machine seems to loose z height. The files gradually cut less deep. Collet is tight, bit not slipping. We swapped cable harness y for z and switched drivers, problem persisted. So eliminated drivers and eliminated cabling. We replaced Z stepper motor, problem persisted, I swapped z and y stepper motors, problem persisted. I have loaded latest version of control software 3.6.24 and have a relatively fast laptop running software. No communications problems.
I am about at end of ideas. I note there is a shopbot.ini file. I have deleted it but software does not ask me to reidentify machine. How do I get to select a new machine ie prt 4g, this may make a difference. If I cannot get this machine running properly, I may have to spring for a new one. This one has lasted for nearly 10 yrs, working without fault, but I hooked an x motor cable on x rail and shorted out the old control box, thus the upgrade.
Thanks in advance for your forum wisdom.
I recently upgraded my prt to the new control box with the 4gdrivers. Install went well, but have been pulling hair over a problem with the z height. I have been working with Frank but we cannot seem to solve the problem. unit values are right, everything is mechanically tight and square. I run previously good files and now machine seems to loose z height. The files gradually cut less deep. Collet is tight, bit not slipping. We swapped cable harness y for z and switched drivers, problem persisted. So eliminated drivers and eliminated cabling. We replaced Z stepper motor, problem persisted, I swapped z and y stepper motors, problem persisted. I have loaded latest version of control software 3.6.24 and have a relatively fast laptop running software. No communications problems.
I am about at end of ideas. I note there is a shopbot.ini file. I have deleted it but software does not ask me to reidentify machine. How do I get to select a new machine ie prt 4g, this may make a difference. If I cannot get this machine running properly, I may have to spring for a new one. This one has lasted for nearly 10 yrs, working without fault, but I hooked an x motor cable on x rail and shorted out the old control box, thus the upgrade.
Thanks in advance for your forum wisdom.