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prusa 2.5s calibration failure on 3  

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LostinNashville
(@lostinnashville)
Active Member
prusa 2.5s calibration failure on 3

I'm unable to pass the initial 4-point calibration on my prusa mk2.5s upgrade. It fails on point 3. I took a video, of it failing bellow. What seems odd is how far off it is. This was a working 2.5 printer and now both the auto home and the calibration points are way off. I checked to make sure everything is still tight on the carriage and it looks good. Any help would be greatly appreciated Thanks!

picture of auto home: https://drive.google.com/file/d/1P-X3RlEXdPreQYLQIZRN8KscjVED_C4Y/view?usp=sharing
video of mk2.5s upgrade failing calibration:

When flashing the firmware here's what I did:

  • factory reset

  • flashed - prusa3d_fw_MK25S_3_7_0_RAMBo13a_en-de.hex

  • factory reset
  • Thanks again!

    Postato : 06/04/2019 5:36 pm
    Allen8355
    (@allen8355)
    Estimable Member
    Re: prusa 2.5s calibration failure on 3

    I don't have an answer for you, but I just "upgraded" from MK2.5 to MK2.5S also and had lots of calibration problems. For me, parts were just physically rubbing. For example, I had to remove the cover over the heatbed screws because the new extruder would hit it. I tried moving everything around without much luck. Also on point three, watch the PINDA and front fan wires. Unless they are very tucked-in they will hit causing problems.

    Postato : 08/04/2019 9:06 pm
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