Surface scan
- Install a probe at your machine which triggers the Probe pin (A5 at arduino) when touching the work piece surface
- Do a homing of your machine, because height information will be safed in world coordinates
- Run the surface scan
Some examples of DIY probes:
- with micro-switch, 2), 3) using a needle, 4), 5) made of brass
The machine can be controlled via
- mouse at the user interface inside the virtual joystick control
- external game pad
The control range of the analoge joysticks are divided into 6 segments to get same functionality as the virtual joystick has. Using the same settings, described below. - control via keyboard is not supported up to now.
The idea is to get a continuous movement as long as the joystick is triggered, and to stop directly. With grbl 0.9 it wasn't easy to implement. My solution was to send every 0.5 seconds a command for a short movement - a distance which could be reached almost within 0.5 seconds. To avoid an extra edit box for the feed rate I designed the control above, which offers 5 different speeds for each direction.