Nozzle height adjustment bottoms out! Mini+
When trying to adjust the nozzle height on my Mini+ after changing from smooth steel sheet to the textured steel one I reach the lowest setting of -2,0 before the nozzle is low enough for a good first layer. When printing on the smooth steel sheet its calibrated to -1,920 (close to the lowest value) which gives a nice first layer. I've checked the Superpinda height with a zip tie according to the recommended height adjustment and its fine. It seems my factory setting of the nozzle height is a bit to high, how can I reset that value so the range of the Live Z or First layer calibration is within the required range?
RE: Nozzle height adjustment bottoms out! Mini+
From my experience, distance of about 1mm (zip tie) between bed and SuperPINDA is a bit too small. Ok, it works usually, but Z-offset will always be very close to negative limit (which is -2.00). Because of that, I moved SuperPINDA up for about 0.5mm (didn't measured exactly) and now my Z-offset is -0.88 for successful first layer calibration.
Do not "adjust" height of the nozzle! -mount and tighten the nozzle according to manual.
[Mini+] [MK3S+BEAR]
RE: Nozzle height adjustment bottoms out! Mini+
@bogdanh
Thx, just got the same reply from support! 🙂
RE: Nozzle height adjustment bottoms out! Mini+
Got some great help from the chat support (Tommy) who wrote:
RE: Nozzle height adjustment bottoms out! Mini+
The Super PINDA should have about 1.5 mm distance between nozzle and SPINDA, so that you’re around -1 when your Live Z is correct. (For the old PINDA, it was 0.8mm).
Instructions are in Step 16 of https://help.prusa3d.com/en/guide/how-to-replace-superpinda-mini-mini_179912 (Mini) or
https://help.prusa3d.com/en/guide/how-to-replace-superpinda-mk3s-mk3s_179920 (Mk3S)
I put this little helper on Prusaprinters.org to help position the SPINDA: https://www.prusaprinters.org/prints/57192-spinda-height-adjustment-tool-mounts-into-3030-ext. Works better than zip ties or credit cards, which have less well-defined heights.
For an illustration of relationship of distance of PINDA to nozzle and sheet, see 
Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...
RE: Nozzle height adjustment bottoms out! Mini+
@fuchsr
Thx for reply! Used the guide that you linked to when I adjusted the pinda probe, worked nice! Your helper seems like a good idea, I just eyeballed the distance using the threads!
RE: Thanks
@fuchsr first post here and it's to thank you very much, I was pulling the last of my hair out trying to set the pinda height on my new mini+
Everywhere I looked it says 1 credit card width, all videos on youtube and even step 16 on the link you gave above says 1 credit card.
I set mine to 1.5 and z to -1 and it was instant perfection! Thank you so much.
This is my first 3d printer so was getting a little worried 🙂
Cheers James
edit: ps, and thank you for the 1.5mm spacer tool!! will be printing that out tomorrow. 😍
Everywhere I looked it says 1 credit card width, all videos on youtube and even step 16 on the link you gave above says 1 credit card.
I have no idea why none of the support pages have been updated. The Superpinda has been out for a long time now.
Or they should say if you use a card card, it only works with the Amex Platinum.... might be just thick enough 😊
Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...
.
lol
Yes it would have saved a lot of hassle if they updated the support pages, seems a simple quick fix to do.
Thanks again