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G1 Linear feed move
Centroid CNC12 Acorn G-code · Mill, Lathe
On mills: Linear feed move
Moves in a straight line at the programmed feed rate in units per minute. This is the basic cutting move.
Format
Addresses
| Address | What it does |
|---|---|
X Y Z | End point of the cut |
F | Feed rate in units per minute |
How it works
Modal, motion group. Stays on until G0, G2 or G3.
Example program
T1 M6 ; LOAD TOOL 1, Z GOES HOME FIRST
G54 G0 X0 Y0 ; WORK OFFSET 1
S3000 M3
…
The full 8-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- If no F word has been given, CNC12 uses a default feed of 3 units per minute. Always program F on the first G1.
- Feed override on DC systems goes from 2 to 200 percent, on AC systems up to 100 percent.
On lathes: Linear feed move
Feeds in a straight line. Feed is per revolution in G99, the default, or per minute in G98.
Format
Addresses
| Address | What it does |
|---|---|
X Z | Absolute end point |
U W | Incremental distance |
F | Feed per rev or per minute |
How it works
Modal, motion group.
Example program
T0101 ; TOOL 1 WITH OFFSET 1
G50 S3000
G96 S500 M3
…
The full 8-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- G99 feed per rev is the lathe default. F.01 in G98 would be almost no feed.
- With no F word CNC12 uses a default of 3 units per minute.
Related codes
G1 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Linear interpolation at feed rate |
| Haas NGC | Linear interpolation feed motion |
| Mazak (EIA) | Linear interpolation, feed move |
| Okuma OSP | Linear interpolation |
| Mitsubishi M70 M80 | Linear feed move |
| Brother Speedio | Linear interpolation |
| Siemens 840D 828D | Linear interpolation at feed rate |
| Heidenhain TNC (ISO) | Straight line at feed rate, Cartesian |
| Fagor 8055 8065 | Linear interpolation |
| LinuxCNC Tormach | Linear feed move |
| Mach3 Mach4 | Linear feed move |
| Hurco WinMax (NC) | Linear feed move |
| Fadal | Linear interpolation at feed |
| Swiss (Citizen Star) | Linear feed move |
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Open G1 in the app All Centroid CNC12 Acorn G-codes