X-axis troubles

[TMC-GSO]

I am just going to start my own thread. We have a PRS standard. The problem is that the x-axis will lose its coordianates to the point that the files come out a little bit off or it will jump track completly.

Another thing is every time I power the shopbot down the next morning I start it back up and try and move it using the keys, it will jump track right away.

The machine is second hand and I am trying to decide if I have to compleltly disassemble the machine and redo it to ensure its completely square and level. I would really rather not do that so does anyone have any ideas/solutions to try?

[paul_z]

It sounds like you are missing steps on the x axis and it may be due to binding on the X axis. I'd disconnect the X motors from the drivers and make sure that you can move the gantry the full range of travel without any binding. Moving the gantry by hand with the motors connected to the drivers is a "no-no" even if the power is off. If the bot has been moved, I'd also do the same for the Y and Z axis.

I'd then disengage the x drive motors and reconnect the motors to the driver. Then power up and make sure both motors are actually rotating using the keyboard command.

Paul Z

[wberminio]

Follow Paul's advice to rule out only other issues-
What are your move and jog speeds?
Try slowing them down.You might be going too fast for your standard and are losing steps

[jerry_stanek]

Also when the motors are disconnected try wiggleing the wires to see if you have a broken one

[TMC-GSO]

Both motors spin and work together. My move speed is 2 and jog speed is 3.5. I still have to try moving it while disconnected from the drivers. I will try this and see what happens.

[gc3]

computer issues.....

i have a old pr and can jog/cut at max speeds 6ips x/y for my software version. 4gig of ram on control computer and no other software just sb v 3.4.27