beacon14
12-17-2002, 10:30 PM
Hi folks,
We occasionally have a problem where the Z-axis will stall out when raising up above the area where we do most of our moving. I suspect it's due to the corners of the unistrut not being as worn in that last few inches of travel as they are in the lower few inches. A little lubrication usually solves the problem.
My question is this: How much torque is that z-motor supposed to have? While investigating the problem today, I grabbed the screw (it's a ball/screw drive on a PR48/96, about 3+ years old) and I was able to make the motor miss steps just by holding the screw while the motor was trying to turn it. I didn't think I was grabbing the screw all that hard (I found this out while holding a rag and cleaner to the screw in an attempt to clean it while it was turning). It seems rather weak. Is there a way to measure the torque to see if there is a problem?
Thanks,
David B.
We occasionally have a problem where the Z-axis will stall out when raising up above the area where we do most of our moving. I suspect it's due to the corners of the unistrut not being as worn in that last few inches of travel as they are in the lower few inches. A little lubrication usually solves the problem.
My question is this: How much torque is that z-motor supposed to have? While investigating the problem today, I grabbed the screw (it's a ball/screw drive on a PR48/96, about 3+ years old) and I was able to make the motor miss steps just by holding the screw while the motor was trying to turn it. I didn't think I was grabbing the screw all that hard (I found this out while holding a rag and cleaner to the screw in an attempt to clean it while it was turning). It seems rather weak. Is there a way to measure the torque to see if there is a problem?
Thanks,
David B.