Hopefully a quick question: How many iterations does Rich Cattell's G30 A autocalibration require to finish?
Background:
- I have a 3DR I've built up, and have just incorporated the Trinket/FSR auto cal Z probe.
- The probe system works really well, the LED on the trinket shows hits exactly as it should, at good levels of pressure.
- Firmware seems to be working fine, I can run G30 at certain points and get repeatable results, and they adjust nicely with endstop tweaks (ie -0.40mm in front of tower X, increase offset 0.40mm and new probe is ~0.0).
- Printer is relatively calibrated already, ie +/- 0.1mm but only measured at centre, and in front of each tower.
- I haven't tried to correct tower offsets at all, but believe they are a little out.
I've run the G30 A and it has taken up to 50 iterations and it is still messing with the endstops, and seems to be going round in circles, doesn't get to a 'calibrated' state.
Understand I could just finish fine tuning the hard way, but having seen those amazing videos of Kossel's probing a field of points and then printing flawlessly, I'd really like to get some sort of auto-cal working on my 3DR!
Does anyone have any suggestions or info about using RC marlin? I'm open to changing firmware, anything really!
Appreciate your help.
Background:
- I have a 3DR I've built up, and have just incorporated the Trinket/FSR auto cal Z probe.
- The probe system works really well, the LED on the trinket shows hits exactly as it should, at good levels of pressure.
- Firmware seems to be working fine, I can run G30 at certain points and get repeatable results, and they adjust nicely with endstop tweaks (ie -0.40mm in front of tower X, increase offset 0.40mm and new probe is ~0.0).
- Printer is relatively calibrated already, ie +/- 0.1mm but only measured at centre, and in front of each tower.
- I haven't tried to correct tower offsets at all, but believe they are a little out.
I've run the G30 A and it has taken up to 50 iterations and it is still messing with the endstops, and seems to be going round in circles, doesn't get to a 'calibrated' state.
Understand I could just finish fine tuning the hard way, but having seen those amazing videos of Kossel's probing a field of points and then printing flawlessly, I'd really like to get some sort of auto-cal working on my 3DR!
Does anyone have any suggestions or info about using RC marlin? I'm open to changing firmware, anything really!
Appreciate your help.