b75e5571ee
- New dual motor support feature for gantry CNC machines. An axis motor is efficiently mirrored to a dedicated set of step and direction pins (D12/D13 or A3/A4) with no detectable loss of performance. Primarily used to independently home both sides of a dual-motor gantry with a pair of limit switches (second shared with Z-axis limit pin). When the limit switches are setup correctly, Grbl will self-square the gantry (and stay square if $1=255 is programmed). Beware use at your own risk! Grbl is not responsible for any damage to any machines. - Dual axis motors is only supported on the X-axis or Y-axis. And deletes the spindle direction(D13) and optional coolant mist (A4) features to make room for the dual motor step and direction pins. - Dual axis homing will automatically abort homing if one limit switch triggers and travels more than 5% (default) of the non-dual axis max travel setting. For example, if the X-axis has dual motors and one X-axis triggers during homing, Grbl will abort 5% of the Y-axis max travel and the other X-axis limit fails to trigger. This will help keep any misconfigurations or failed limit switches from damaging the machine, but not completely eliminate this risk. Please take all precautions and test thouroughly before using this. - Dual axis motors supports two configurations: - Support for Arduino CNC shield clones. For these, step/dir on pins D12/D13, and spindle enable is moved to A3 (old coolant enable), while coolant enable is moved to A4 (SDA pin). Variable spindle/laser mode option is NOT supported for this shield. - Support for Protoneer CNC Shield v3.51. Step/dir on pins A3/A4, and coolant enable is moved to D13 (old spindle direction pin). Variable spindle/laser mode option IS supported for this shield. - Added Bob's CNC E3 and E4 CNC machine defaults.
1.4 KiB
1.4 KiB
| 1 | Alarm Code in v1.1+ | Alarm Message in v1.0- | Alarm Description |
|---|---|---|---|
| 2 | 1 | Hard limit | Hard limit has been triggered. Machine position is likely lost due to sudden halt. Re-homing is highly recommended. |
| 3 | 2 | Soft limit | Soft limit alarm. G-code motion target exceeds machine travel. Machine position retained. Alarm may be safely unlocked. |
| 4 | 3 | Abort during cycle | Reset while in motion. Machine position is likely lost due to sudden halt. Re-homing is highly recommended. |
| 5 | 4 | Probe fail | Probe fail. Probe is not in the expected initial state before starting probe cycle when G38.2 and G38.3 is not triggered and G38.4 and G38.5 is triggered. |
| 6 | 5 | Probe fail | Probe fail. Probe did not contact the workpiece within the programmed travel for G38.2 and G38.4. |
| 7 | 6 | Homing fail | Homing fail. The active homing cycle was reset. |
| 8 | 7 | Homing fail | Homing fail. Safety door was opened during homing cycle. |
| 9 | 8 | Homing fail | Homing fail. Pull off travel failed to clear limit switch. Try increasing pull-off setting or check wiring. |
| 10 | 9 | Homing fail | Homing fail. Could not find limit switch within search distances. Try increasing max travel, decreasing pull-off distance, or check wiring. |
| 11 | 10 | Homing fail | Homing fail. Second dual axis limit switch failed to trigger within configured search distance after first. Try increasing trigger fail distance or check wiring. |