Z-Axis tries to go through the roof/top plate of the axis

[madgrizzle]

@Arnd

Do i need to completely re-calibrate after rewriting the firmware? I get a “chain-length” not found (0.0) please use actions set-chain length. But its still in groundcontrol,ini?!

You don’t need to recalibrate, but you do need to reset the chain lengths.

How To: Manually Reset Chains, the Easy Way

Every now and then you may find that you need to readjust the chains back to a known position. This could occur if you power/connection issue and the controller lost it’s position, had a chain skip, took apart something for some reason, etc… Fortunately, there’s a way to reset the chains without a lot of work. During calibration, after you set the sprockets vertical, you extend the chains out to reconnect to the sled. If your “Extend Chain Distance” is a multiple of a full revolution of the s…