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G93.1 Inverse time with velocity scrubber
Centroid CNC12 Acorn G-code · Mill
Replaces CAM inverse time feeds with a feed that keeps the tool tip moving at the set F in units per minute. Meant for tilt table and articulated head machines.
Format
G93.1 G1 X Y Z A B F
Addresses
| Address | What it does |
|---|---|
F | Tool tip feed in units per minute |
How it works
Modal. Cancel with G94.
Example program
G0 G54 G90 X2.2126 Y-1.1995 A94.75 S3000 M3
G43 H26 Z3.1 M8
G1 G93.1 X2.2048 Y-1.2593 Z3.0204 F150. ; TIP MOVES AT 150 IPM
X2.2052 Y-1.2586 A94.756 F30000. ; F IGNORED
…
G43 H26 Z3.1 M8
G1 G93.1 X2.2048 Y-1.2593 Z3.0204 F150. ; TIP MOVES AT 150 IPM
X2.2052 Y-1.2586 A94.756 F30000. ; F IGNORED
…
The full 5-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Smoothing must be on, parameter 220 set to 1, or it acts as plain G93.
- Break rotary moves over 10 degrees into smaller moves.
Related codes
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