Two questions about PINDA and Super PINDA probes.
Helo,
After changing the nozzle, I had to calibrate the XYZ axes. The calibration of the X and Y axes was correct. BUT, the Z axis failed: In the 4-point test, he was dragging the sheet of paper. In the 9-point test, the nozzle was pressing against the heated base at either point 5 or point 8.
Well, the PINDA V2 sensor failed. My first question:
1. Why does the PINDA V2 sensor break?
Yesterday, I have installed a new Super PINDA probe. When the nozzle rubs against a piece of paper (but it can move) placed on the heated bed, I have clamped the probe exactly 1.00mm above the bed using a precision gauge. Now, the live_ Z setting value is too high: -1900. My second question:
2. About how high should I place the probe to get a lower Live Z setting?
Best regards to all
RE: Two questions about PINDA and Super PINDA probes.
Are you sure the PINDA probe broke? When you change a nozzle it's expected that your z-offset is going to change, it's part of the process.
Don't get anal about the numbers of a z-offset, they're semi-arbitrary. Some people will have a good z-offset at 0.125, others at 1.1. The most important things are that the PINDA probe is higher than the nozzle by at least 1mm and that you get repeatable first layer probes.
Cheers
-Bob
Prusa I3 Mk2 kit upgraded to Mk2.5s, Ender3 with many mods, Prusa Mini kit with Bondtech heat break, Prusa I3 Mk3s+ kit
RE:
While absolute Live Z values don't matter, for the SuperPINDA it should be positioned around 1.5mm above the nozzle to get into the -1.0 range for Live Z. That gives you enough wiggle room up and down. For the old PINDA it was 0.8mm.
Instructions for adjusting the PINDA are in: https://help.prusa3d.com/en/guide/how-to-replace-superpinda-mk3s-mk3s_179920
I put this little helper on Prusaprinters.org to help position the SuperPINDA: https://www.prusaprinters.org/prints/57192 . Works better than zip ties or credit cards, which have less well-defined heights.
Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...
RE: Two questions about PINDA and Super PINDA probes.
Hi, Bob,
"Are you sure the PINDA probe broke? When you change a nozzle it's expected that your z-offset is going to change, it's part of the process."
Regrettably, yes. The new Super PINDA probe works correctly. But, I don't know why it's broken. I also don't know how to check it in my electronics lab.
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Hi, Fuchsr,
"... For the SuperPINDA it should be positioned around 1.5mm above the nozzle to get into the -1.0 range for Live Z." Thanks for the information.
"That gives you enough wiggle room up and down. For the old PINDA it was 0.8mm." Yes. That's my idea.
Tomorrow I will print your gauge. Thanks a lot.
Thanks to both for your answer. 🥂
Cordial greetings to the members of this Forum. 😊