EricSchimel
07-16-2016, 09:28 PM
I've got a circa 2008 PRS Standard. (The one with the black PC control box)
I've noticed a few times lately when I power it up my X, and sometimes Y motors don't lock up. When I try to jog the control software shows that it's sending steps, but the motors don't move.
It's only happened a couple of times, and the solution is to power the box back off for a minute or two and power it back on.
Today I was cutting some plywood and I noticed that my last pass (I run my last pass in reverse) was "off". It looked at first like I had lost steps...
I checked my toolpaths, slowed down my cutting, and tried again, and again and I had a similar issue, my last lass appeared as if I had lost steps.
I brought the tool back to 0,0 to see if I had actually lost steps and I hadn't...
I rebooted the computer, powered off the tool and powered everything back up and I was able to cut my part just fine.
Later it occurred to me that a reasonable explanation for what happened today is that one of my X motors didn't lock. I was already cutting pretty conservatively, and except for the last pass in the same direction. If my gantry was being dragged by only one motor, I wouldn't have noticed it racking until my last pass (remember it's in the reverse direction).
So, here's the question: What would cause my X and Y motors to randomly not lock when I power up my bot? I did a search here but I didn't see anything...
I've noticed a few times lately when I power it up my X, and sometimes Y motors don't lock up. When I try to jog the control software shows that it's sending steps, but the motors don't move.
It's only happened a couple of times, and the solution is to power the box back off for a minute or two and power it back on.
Today I was cutting some plywood and I noticed that my last pass (I run my last pass in reverse) was "off". It looked at first like I had lost steps...
I checked my toolpaths, slowed down my cutting, and tried again, and again and I had a similar issue, my last lass appeared as if I had lost steps.
I brought the tool back to 0,0 to see if I had actually lost steps and I hadn't...
I rebooted the computer, powered off the tool and powered everything back up and I was able to cut my part just fine.
Later it occurred to me that a reasonable explanation for what happened today is that one of my X motors didn't lock. I was already cutting pretty conservatively, and except for the last pass in the same direction. If my gantry was being dragged by only one motor, I wouldn't have noticed it racking until my last pass (remember it's in the reverse direction).
So, here's the question: What would cause my X and Y motors to randomly not lock when I power up my bot? I did a search here but I didn't see anything...