🇬🇧 · Richmond Makerlabs · IanM
Getting the CNC working ← Older revision Revision as of 11:43, 2 May 2026 (One intermediate revision by the same user not shown) Line 180: Line 180: ====Implementation==== ====Implementation==== [[File:CNCmill VFD Wiring.jpg|thumb|alt=VFD Wiring]] The VFD needs a separate input for start/stop as it doesn't threshold its speed control input, so when running 0V in commands minimum speed rather than stopping it. The VFD needs a separate input for start/stop as it doesn't threshold its speed control input, so when running 0V in commands minimum speed rather than stopping it. Line 253: Line 254: In May 2024, Vic Chang fitted a fan to cool the stepper drivers on the GRBL controller, and also made a start on separating the wiring (EMI mitigation). In May 2024, Vic Chang fitted a fan to cool the stepper drivers on the GRBL controller, and also made a start on separating the wiring (EMI mitigation). Considerable progress has been made since, and as of March 2026, the machine is currently usable , but its squareness and table flatness are questionable . Heavy cutting and hard materials are not currently recommended as the X and Z axes have insufficient rigidity. I (Ian M) started investigating and troubleshooting the machine in January 2025. Considerable progress has been made since, and as of May 2026, the machine is in working order , with acceptable squareness , tram and table flatness. Heavy cutting of hard materials is not currently recommended as the X and Z axes have insufficient rigidity. ===Known Issues=== ===Known Issues===
