Prusa Mini: Setting The Minda Probe Height 

The exact thickness isn't critical, you just need something that's thin enough that the sensor will end up close to the height of the nozzle, but thick enough that the printer has time to stop when moving down (before the nozzle hits the bed). The final height is set by the "first layer calibration" / "Z-adjust" parameter, so you _can_ use something thinner or thicker (within a -2 / +2 mm margin - I think that's the range available in the menu).

true, nobody have old card

The offset is fine, the first layer is the important part.

You DONT want a z offset of zero???

Because, I’ve tried the measure and do the math way. Rarely works, so you end up with touch and watch anyhow. Might as well start there. I’m sure someone out there has the perfect algorithm to do it, I don’t.

It is what is considered Auto Bed Leveling. Really like all fixed bed printers, it creates a mesh that tells the z axis how to adjust to make the nozzle stay at a consistent height from the bed. It works extremely well and you will never want to go back to a manual bed leveling set up ever again. I have some sort of Auto bed leveling all the printers that I use regularly.

The difference will be the thickness of the object that you placed under the sensor. In the case of this video, it was the thickness of the ziptie. If you run a 1st layer calibration afterward, the offset will be very close to this thickness amount.

this really has been a life saver! after this adjustment and switching to a new roll of pla+, printer is working perfectly and cranking out prints like a beast, thanks a ton!

Glad the video helped!

From what info I can find they are the same, Joseph just decided to call the Mini's MINDA with the M standing for Mini

I suggest you do a first layer cal. The actual distance from the build plate isn't an exact thing and I tend to run my Pinda/Mina probes higher than most, (I don't want them running into a model as it's printing.). The probe just needs to be in range to work effectively, If you can run a Mesh bed leveling or the wizard successfully, all is good. Don't get wrapped around the axel on trying to get the probe at some exact height. I use a Zip tie and they vary in thickness from manufacturer to manufacturer. I could have used precision measuring equipment, but it's not necessary. Also the offset you end up with when doing a first layer cal isn't something to worry about either. you will find forums that claim that it's an issue, it's not. The various sheets that I use on my Mk3s have offsets that vary from -.6 to -2.3. All that matters is that the machine delivers a consistent first layer.

@@Zelrick42 Thanks for the quick reply! I have defiantly been caught up on an exact height of some sort. The issue before that had led me to adjusting the MINDA was my Z height was as far down as it could go and I wasn't getting a good first layer at all as the nozzle was still too far away from the print bed. Again I appreciate the help and quick response!

@@Zelrick42 - The sensor will never "run into a model while printing", because it's always _higher_ than the nozzle, and the nozzle is always at the height of the highest layer. For the sensor to hit a model being printed, the nozzle itself would have to be pushing down into the model. And if the sensor was lower than the nozzle, you wouldn't be able to print the first layer at all.

Thanks Tony!

might wanna get checked out, it's bright blue dude