23
Z Probe Setup
Probe function introduction
Step 1: Probe commands editing
1. Grblcontrol (Candle) Probe operating instructions
G90G21G38.2Z-50F100
G92 Z14
G90 Z25
After editing
Probe Tool height
G21G91G38.2Z-20F100
G0Z1
G38.2Z-2F10
G92 Z12.35
G90
G0 Z25
Probe G code
Explanation:
G21G91 : metric, relative coordinates
G21G91 : metric, relative moves
G38.2Z-12.35F100 : probe 12.35 mm @ 100 mmpm
G0Z1 : move up 1 mm (it's in relative, not absolute, mode
G38.2Z-2F0 : probe 2 mm $ 100 mmpm
G92Z20.1 : my probe thickness, YMMV
G90 : back to absolute mode
G0Z25 : retract off the probe
This assumes that the user would position the probe, then jog the
bit 5 or 10mm above it. With a PDF this could be copied from the
pdf, pasted into Candle, and just the probe thickness changed.
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