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Z-Axis Crash during homing after tall prints
Not a bug but just something that happens on tall prints that almost fill the build volume.
For example when I print something with a Z-Height of 290mm on my VC 300, the print ends with the bed, or rather the arms, around 10 mm above the Z-couplers. The motors are then disabled.
Next time the printer homes, the bed moves down 15 mm as part of the homing procedure, crashing into the couplers of the leadscrews for the last "5 mm".
The crash sounded very unhealthy. My fix now is to set center kinematic position and manually move the bed up before I home it again.
- Any Ideas on how this could be fixed or improved?
- Maybe implementing something similar to sensoreless homing on the Z-Axis as a failsafe?
- has anyone experienced this and / or done something about it?
For example when I print something with a Z-Height of 290mm on my VC 300, the print ends with the bed, or rather the arms, around 10 mm above the Z-couplers. The motors are then disabled.
Next time the printer homes, the bed moves down 15 mm as part of the homing procedure, crashing into the couplers of the leadscrews for the last "5 mm".
The crash sounded very unhealthy. My fix now is to set center kinematic position and manually move the bed up before I home it again.
- Any Ideas on how this could be fixed or improved?
- Maybe implementing something similar to sensoreless homing on the Z-Axis as a failsafe?
- has anyone experienced this and / or done something about it?
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