4th Axis (A-Axis)¶
Pro Feature
4th Axis support is available in ncSender Pro only.
Jog and read out a 4th axis (A-axis) for rotary and indexing work.
Features¶
- DRO display: an A card next to X, Y and Z.
- Jog control: A+ and A- buttons.
- G-code support: A-axis moves in loaded programs are sent as written.
The A controls only appear when your controller reports an A axis.
Show or Hide the A Controls¶
Use the A switch in the Jog panel header to show or hide the A buttons. ncSender remembers your choice.
Jog Behavior¶
- A jogs at 25% of the XY jog feed rate.
- A uses the same step size chips as X, Y and Z. The value is in degrees.
- A always reads in degrees, even in imperial mode.
- Long-press A+ or A- for continuous rotation.
- Double-click the A card to type a specific angle.
Note
Keyboard and gamepad controls have no A actions. Jog A with the on-screen buttons.

