I’m new to the world of home 3D printing, after a few years going to the local FabLab. I’ve assembled a MicroDelta Rework from eMotionTech, wich comes with a Smoothie board. I managed to snap the provided z-probe part by crashing it into the bed, due to a connection problem. (Now I learnt to always try the z-probes by hand before calibrating…)
Logn story short, I digged around a bit, and elected to replace the broken z-probe, a clumsy thing that you had to manually attach and remove when you wanted to calibrate, by underbed piezo sensors to be able to do quick calibrations before prints with no extra hassle.
Everything is nice and all now, but my initial bed height is now too short.
Z-probing works, if I issue a G30, the nozzle goes down until it taps the bed and returns 205.32mm.
BUT when I issue a G32, the nozzle would go down, then stops short of the bed and gives up:
Recv: Calibrating Endstops: target 0.030000mm, radius 65.000000mm
Recv: set trim to X:0.000000 Y:0.000000 Z:0.000000
Recv: initial Bed ht is 175.000000 mm
Recv: center probe: 15.0000
Recv: Probe was not repeatable to 0.030000 mm, (15.000000)
Recv: Failed to complete Calibration, check the initial probe height and/or initial_height settings
It seems that the 175mm of initial bed height is a problem, but I can’t figure out how to fix it.
What I tried so far:
- In my config, gamma_max is set to 205.
- I tried issuing:
- G30 Z0
- M306 Z0
to override the height, but it seems I was mistaken about what these commands do.
Can someone point me in the correct direction?