Duet 2 v1.02 not responding

thomasvanderwal

@droftarts
At Z=11 it touches the bed. I followed the steps for trigger height with g92/g30 . Then used G31 and put the z number (trigger height in config with G31 x0 y0 z-2.0 Is that right?

thomasvanderwal

@droftarts I am done. It will not work. After setting a z=0 (nozzle touches bed) delta calibration is not working proberly. The Z is suddenly 32. When calibrating the nozzle pushes the bed in 3 of the 6 down leveling. What I'm missing?

thomasvanderwal

@dc42
Can you help me with bed leveling in my Tractus 3D t650P. After getting the firmware right and configuration my Z is off. When Z=11 then crashes the nozzle in the bed. I made may changes with G92 Z0 etc. G30 S-1->G31 and M500/M999. With G31 z-10.85 nozzle is still crashing with Z<11

Phaedrux

Were you able to identify what kind of probe is actually being used? Can you point to a piece of hardware on the printer and say "this is the probe"?

thomasvanderwal

@Phaedrux
I Will dismantle the bottom to see.
I managed to print something unless the nozzle hitted the bed. But It was very small and didn’t make It as a benchy. Looked the size of 20% of the suppoost size.

thomasvanderwal

@Phaedrux @droftarts
you tell me haha

Do you know how I set this right in the config.g?
Please help me to get the calibration right. Every time I push "delta calibration" my previous (G92 Z0) is changed to something else (Z=0 but nozzle is about 6mm above bed).

thomasvanderwal

@droftarts
This is what is going wrong with printing. It had to be a sqaure 50mmx50mm h=20mm
Result 20mm x 15mm

Phaedrux

I think that's probably a bed attached piezo probe. It detects the nozzle contact tap.

You won't be able to print anything until you have the probe configured and are able to complete a delta calibration and bed mesh. Without an accurate mathematical model of your delta nozzle positioning won't be accurate enough.

Can you get a clearer shot of that little PCB? As well as a photo and description of where the wires from that PCB are connected to your Duet? With that information I can hopefully guide you in configuring it.

Phaedrux

Also please share your entire current config.g and homedelta.g and bed.g

droftarts

@thomasvanderwal sorry, I’m away on holiday this week.
Did you check that, from homing, when you move down 50mm in Z, it actually moves 50mm? Measure with a ruler. This is to check your steps per mm (M92).

Ian