Calibration Completion Issue
I have been printing with my MK3/MK4 for a couple years. I have just completed building the Enclosure for it. I am not sure if I made a slicer change or what. But, when I begin a new print, the printer indicates that I need to finish the calibration process. All of the processes are checked GREEN except the one where I am supposed to touch the nozzle. When I follow the procedure I do not receive an acknowledgement that the nozzle has been touched. After several attempts I abort. This also results in the "Z-Axis" calibration not receiving the green check mark. I seem to recall that I had this same issue upon completing the MK-3 construction. Eventually, after several attempts, the printer did acknowledge the touching.
So, I ultimately select Ignore to bypass the calibration steps and continue with the printing. I am then presented with a notice that the g-code does not, or is not, fully compatible with the printer. This is where I assume that the printer I have assigned in the Prusa Slicer version. 2.9.4.... is not correct. I have changed this selection a couple of times to a selection I believe to be correct. None of my selections have solved that issue. I then elect to continue with the print. The final result appears to be a perfect print from what I am able to tell. Still, I am concerned about the warnings that appear when I initiate a new print and I would like to resolve these conflicts and I am seeking information to do so.
The printer I originally purchased was the MK-3. I went through the upgrade process stepwise to the present configuration, which is the MK-4iS. I have the most recent Firmware in the printer (6.4.0+11974 [Boot Loader 2.5.8]), and the latest software version for the Slicer (2.9.4). I am not using an MMU at this time (yet). I am Extremely pleased with the PRUSA products, their quality and modification instructions.
I thank you, in advance, for any information you may offer.
~Dave Robinson, KB7GP~
RE: Calibration Completion Issue
I have the same problem.
I have an MK4s MMU3. Recently it has not been printing the first layer correctly. I think the height of the Z axis is no longer correct. Because the filament is being dragged along, it has already ruined two hotends for me. I can also see a depression on the print bed at the spot where the printer extrudes the first filament. I have already calibrated the Z axis several times. It had no effect at all. The message that the G-code (PrusaSlicer) is incorrect keeps appearing as well.
I hope someone from the community has a solution.
RE: Calibration Completion Issue
Addition: I did the updates to: Firmware printer (6.4.0+11974 [Boot Loader 2.5.8]), software version Slicer (2.9.4)
RE:
There are multiple documented cases of z-axis problems, even damaged build plates, with firmware 6.4.0. Try reverting to 6.2.6.
https://forum.prusa3d.com/forum/postid/764436/
MK4S/MMU3
RE: Calibration Completion Issue
UPDATE...
I was finally able to complete calibration. Turns out "tapping or touching" the nozzle is not quite what I interpreted. More like touching and holding until the progress bar completes (I didn't notice the progress bar initially). I think this was my first issue when I originally built the MK3.
The issue now, after rolling the F/W back to 6.2.6 as suggested, I decided to bring everything to date by updating to the latest F/W 6.4.#. It went fine, the calibration holds and all that. Now I am being annoyed by Prusa Connect always indicating the need to transfer to F/W and it does so by insisting upon loading ver 6.2.6 again, and again... How do I stop this? It has the latest F/W and doesn't seem to know it. For now I just ignore, STOP the TRANSFER, then look for the bgcode I planned to print. In addition to that, I have to locate my printer within Prusa Connect (I only have one printer logged). This is new since trying to sort out the calibration issue.
Dave