PINDA Probe testing

Updated 1 week ago ​by Tomáš Chvalina

Our PINDA probe is a vital component of the Original Prusa i3 MK2/S and MK3. In this article, we will show you how to properly test that it is working properly. 

Testing that the PINDA probe works

We will go over 3 rounds of tests. So if you are suspecting an issue with the PINDA whether or not it is functioning as expected, you can check following. 

Testing that the PINDA probe works

In the first test, we will check if the PINDA probe works at all. You will need something metal for this test (e.g. spatula, scissors) 

  1. Go to the LCD Menu - Calibration - Show end stops
  2. In the meantime place the spatula underneath the PINDA probe.
  3. Z value shall change from 0 to 1. If the value changes, move to the 2nd test.
  4. If the value does not change, then check that your PINDA probe is properly connected to the MK2/MK2S miniRAMBo. 
Testing the PINDA probe cable

So it is clear that the PINDA probe is registering metal objects and therefore is functional. Now, we must check that the PINDA probe cable is not damaged.

  1. Hold the Knobe - Move Z  axis to +100 height.
  2. Go to the LCD Menu - Calibration - Show end stops.
  3. In the meantime, with your hand, move with the extruder from one side to the other.
  4. Z value should remain at 0. If the value changes, then the PINDA probe cable is faulty. Most likely there is an overtightened zip-tie, which is making the PINDA probe cable not to work at a certain movement.   
Testing the PINDA probe readings in PronterFace  

In the last test, we will check the real values of the PINDA probe is readings. 

In order to make the following tests valid, please perform the tests under the same conditions. 
  1. Connect the printer via the USB and Pronterface.
  2. Ensure the nozzle is clean and the print surface clear of any obstructions.
  3. Issue a "G80" command, this will start the mesh bed leveling process.
  4. Once the process is complete, send a "G81" command, this will report out the interpolated Z values for a 7 x 7 array that composes the mesh bed.
  5. Repeat the process at least 3 times.
  6. Compare data points for each reported 7 x 7 array.

You want to make sure there are no large deviations (>0.2) between each point of the array with each interpolated Z value. Remember that each data point is a position, and you should compare that same position with the same position in the other reports.

Should you still have any issues, please do not hesitate to contact us at If possible, please submit the e-mail with your PINDA probe test results.

How did we do?