I rebuilt my machine and switchet to Nema 23 High Torque from Nema 23's. x and y1 show red light on blackbox. Both Y motors were working after a little tweaking. Is my blackbox shot? When I first started the motors I had to adjust the steps way down but when I calibrate the distance moved it wanted to adjust my steps back up which made the motors not work. What can I do to rsolve these issues?
Adjust current down a little and check for shorts. The red indicator is explained here: docs:blackbox:currentadjustment [OpenBuilds Documentation]
Ok. I got the motors running smoothly. However. both x and y only travel about 35 mm before stopping. Then I can start again. What causes this?
Explain what you are trying to do, when it does that? Jogging Incremental or Continuous, etc. Any errors
Continuous jogging. No errors. After it stops I release the mouse button and click it again and it starts again.
Try in Incremental Check Grbl settings again (max travel, soft limits etc) as Continuous calculates maximum move off those values) (at least CONTROL does, what are you using?)
My max travel is fine. However, the Openbuilds Control shows a movement of !000 mm when it has only moved 575 mm. How do I adjust that. Keep in mind that when I calibrate the movement it changes my steps per mm and it stalls the motors. My steps need to be at 185.
Continuous is a convenient rough positioning action when checking actual distances Steps per mm has to be correct to get reality to reflect the software side of things. Fix that. Then address the stalling by lowering acceleration, or upping stepper driver current.
Relative configs: $110, $111 and $112 – [X,Y,Z] Max rate, mm/min (se this to the maximum speed the machine can move to prevent stalling (it wont move faster than the stall speed - trial and error what speed it stalls at) and $120, $121, $122 – [X,Y,Z] Acceleration, mm/sec^2 (more gentle acceleration, allows better top speed)
Thanks Peter. I have the x and y calibrated. My steps per mm are 315-317. My acceleration I had to put all the way down to 5. Is that normal?
What kind of machine, where is the motors from etc? Our motors are low inductance, low coil voltage motors for fast acceleration
Custom Built machine. The nema 23 High Torque are from Openbuilds. It's a 1200x2400 with 22mm lead screws on the y and 16mm lead screw on x.
Our leadscrews are 8mm pitch. If your pitch is different, that would explain different acceleration requirements 22mm is quite overkill as well, that is a very heavy piece of metal to spin up.
All good, but i think its weight goes a long way toward limiting not only acceleration, but probably also maximum feedrate
Got everything working ok. However, Y and y2 lose sync. y loses 3mm in every 300. How can I adjust that?
