<p>I have just built a Prusa i3 MK2 printer. One of its features is automatic XYZ axes calibration done using inductive probe which is located next to the nozzle.</p>

<p>In my case, this calibration procedure failed with the message: </p>

<blockquote>
  <p><em>XYZ calibration failed. Please consult the manual.</em></p>
</blockquote>

<p>The <a href="http://www.prusa3d.com/downloads/manual/prusa3d_manual_mk2_en.pdf" rel="nofollow noreferrer">manual</a> on this problem reads:</p>

<blockquote>
  <ol>
  <li><strong>XYZ calibration failed. Bed calibration point was not found.</strong><br>
  Calibration routine did not find a bed sensor point. The printer stops close to the bed
  point, which it failed to detect. Please verify, that the printer is assembled correctly,
  that all axes move freely, the pulleys do not slip and the print nozzle is clean. If
  everything looks good, re-run the X/Y calibration and verify with a sheet of paper
  between the nozzle and the print bed that the print nozzle does not touch the print
  bed during the calibration routine. If you feel a friction of the nozzle against the sheet
  of paper and the nozzle is clean, you need to screw the PINDA probe slightly lower
  and re-run the X/Y calibration.</li>
  <li><strong>XYZ calibration failed. Please consult the manual.</strong><br>
  The calibration points were found in positions far from what should be expected for a
  properly assembled printer. Please follow the instructions of case 1).</li>
  </ol>
</blockquote>

<p>My nozzle is new, therefore clean and I have already checked that all axes move without any problems. The manual does not seem to offer any additional advice.</p>

<p>I tried to put the PINDA probe lower. It had helped the calibration, but at the same time the probe was lower than the nozzle, which means I couldn't print with it being on the extruder.</p>

<p>What else can I check? How to find the issue? This is my first printer, so I'm totally clueless.</p>

[{'answer_id': 3563, 'author': 'Bill Waggoner', 'author_id': 5031, 'author_profile': 'https://3dprinting.stackexchange.com/users/5031', 'pm_score': 0, 'selected': False, 'text': '<p>I suggest that you ask on <a href="http://shop.prusa3d.com" rel="nofollow noreferrer">shop.prusa3d.com</a> and click the Forum tab button. The folks there are very friendly and knowledgable. I\'m sure you can get some help. You can also email support.</p>\n\n<p>There is also a question form at the bottom of <a href="http://www.prusa3d.com" rel="nofollow noreferrer">www.prusa3d.com</a> where you can ask questions.</p>\n\n<p>I\'m sure you can get it going. I have a MK2 also and it has done very well by me!</p>\n'}, {'answer_id': 3565, 'author': 'Tomáš Zato', 'author_id': 283, 'author_profile': 'https://3dprinting.stackexchange.com/users/283', 'pm_score': 2, 'selected': True, 'text': '<p>One thing, and the one that eventually solved my problem, is to update the firmware. Firmware update instructions: <a href="http://manual.prusa3d.com/Guide/Upgrading+firmware/66" rel="nofollow noreferrer">Upgrading firmware - Prusa3D</a></p>\n\n<p>The only thing you might get stuck on is selecting the right COM port.</p>\n\n<ol>\n<li>Go to the device manager (run <code>devmgmt.msc</code>)\n <img src="https://i.stack.imgur.com/yphCl.png" alt="image description"></li>\n<li>In COM and LPT section, you should see port for your printer by name. Select that port number in the firmware update tool.</li>\n</ol>\n\n<p>In my case, I had to run the calibration twice before it worked. I had no problems since then.</p>\n'}]
['https://3dprinting.stackexchange.com/questions/3552', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/283/']