[SOLVED] Still Calibrating after 9 hours - one loose belt

Troubleshooting
1

I succeeded starting the calibration process. During the calibration, only 3 belts were in use though. Sometimes the bottom-left belt does not pull in. It extracted easily though.

This video shows from minute 5 the calibration process. Before that, it is the first setup.

Related

Questions

  • In firmware 1.14 are only 3 belts supposed to be working fro calibration?

Actions taken

  • I am running a 9x9 calibration grid
  • I will be making the bottom attachments tighter so they do not move
2

Nicco Kunzmann wrote:

  • In firmware 1.14 are only 3 belts supposed to be working fro calibration?

no, all 4 belts need to pull tight at each measurement point.

we have two different approaches to figure the current limit that you need to
have to get them all to retract.

you can increase the retraction/calibration current, but you may be better off
working on the arms to make the spools turn more easily

Actions taken

  • I am running a 9x9 calibration grid
  • I will be making the bottom attachments tighter so they do not move

they need to be able to pivot on the anchors.

David Lang

1 Like
3

Thanks! I set the calibration force to the same force as the retraction force and now all belts turn fine. I wonder if that could mean that the bottom-left belt has a hard time turning. I will see when I take it apart…

Thanks for the help!

4

Nicco Kunzmann wrote:

I wonder if that could mean that the bottom-left belt has a hard time turning.
I will see when I take it apart…

it does. when you have the machine apart, wiggle each spool, you should find
that the other arms wiggle much easier than the bottom left arm.

while increasing the current works, it’s best to make all the arms move freely.

David Lang