Nozzle too high even with PINDA adjusted
Hi,
I've been stuck trying to get my nozzle to calibrate properly. Even with the PINDA sensor as low as it can go, my nozzle still clears a few millimetres above the hot bed. I even manually lowered the Z axis to make the nozzle lower, but the printer still runs it higher when calibrating. Calibration was done at 0.00. Everything checks out fine in the calibration wizard until it does the test print and the filament doesn't adhere to the hot bed. I'm not sure what I'm missing here.
The printer is using the latest firmware.
Thanks
RE: Nozzle too high even with PINDA adjusted
If I understand properly you put the PINDA lower (ie: closer to the build plate).
The PINDA will only react when a set distance is reached sensing the presence of the build plate so the lower you set it the sooner it will stop. The result will be a larger gap between the build plate and the nozzle.
Now if the PINDA is raised in the holder it will stop at the same distance between the PINDA and the build plate but since it now sits higher in the extruder assembly thus the nozzle will be closer to the build plate. Look at it this way: should you put the PINDA completely up in the extruder assembly it will not get close enough to the build plate to be triggered before the nozzle crashes on the plate...
So if the nozzle gap is 1mm too large, raise the PINDA 1mm and retest till you are close while the live Z adjust is at zero. Then follow the tuning in the assembly book.
Hope this helps. If I got this wrong I hope someone more knowledgeable will chip in.
Best of luck with it.
REPAIR, RENEW, REUSE, RECYCLE, REBUILD, REDUCE, RECOVER, REPURPOSE, RESTORE
RE: Nozzle too high even with PINDA adjusted
I would recommend going through the pre flight check again if you haven't already.
https://help.prusa3d.com/en/guide/9-preflight-check_76792
It will tell you how to set the height of the pinda, and then you can alter the z height in the first layer calibration to get adhesion + printing working.
RE: Nozzle too high even with PINDA adjusted
Thanks that definitely worked. Although sadly my tiny PETG test print ripped the only good side I had left of my steel sheet. Even with glue it happened. I hope it's not my PINDA setting 😪
RE: Nozzle too high even with PINDA adjusted
Cool thanks. I'll definitely do that for more accuracy once my replacement steel sheet comes in...first time PETG has destroyed it, and with glue as well. I hope it wasn't the PINDA setting I used, but it could be the filament. Although Overture never gave me grief before...
I would recommend going through the pre flight check again if you haven't already.
https://help.prusa3d.com/en/guide/9-preflight-check_76792
It will tell you how to set the height of the pinda, and then you can alter the z height in the first layer calibration to get adhesion + printing working.