RE: Suddenly cannot calibrate no matter what I do
The crashes we are talking about is the nozzle crashing into the bed as its trying to calibrate the Z. And running the full wizard after the reboot does not work. I had to adjust the Z offset before doing the calibration for it to work successfully.
RE: Suddenly cannot calibrate no matter what I do
Then you didn't use the DATA CLEAR option, because that deletes any z-offset data.
But if you got it working, great.
RE: Suddenly cannot calibrate no matter what I do
Yeah I did that it set the value to 0 and crashed into the bed until you change it. This error happens every time you try and redo the calibration so theres definitely a bug that needs fixed somewhere.
RE: Suddenly cannot calibrate no matter what I do
Revisit your Pinda. I think that it can be faulty even if the red light works. Somewhere down in the printer menu there is a choice to check if it responds to metal. This is in Settings... scroll down to Sensors and you should see Pinda zero. It must change to 1 when the probe senses metal. Mine did not, even when the red light worked.
Retired doc, should have been an engineer.
RE: Suddenly cannot calibrate no matter what I do
Correction to above, it is in Service. scroll down a long way.
Retired doc, should have been an engineer.
RE: Suddenly cannot calibrate no matter what I do
I'll read the rest of the thread but wanted to sympathize with your plight. I've had this error and found it hilarious when the poor little extruder blindly crashes down into the print sheet and tells me there's a problem (Really? You think?). In all cases the X decided to join the alt-right and wasn't even over the print sheet; it couldn't stop because it was effectively blind.
I don't recall exactly how I fixed that problem (as I had others afterward) but manually moving the X to the farthest possible left stopped it from going too far right. Basically I served as Antifa. This allowed the 9 point calibration and successful prints. It knew how far to travel, but not where it was.
I should take a picture of my print sheet. There's a huge divot from this experience as well as other battle scars from my 3D printing experience.
RE: Suddenly cannot calibrate no matter what I do
It works perfectly fine now great actually its just if i got to ever recalibrate i know the same issue is going to happen. The first time I got it out of the box it works perfectly - I wanted to recalibrate just cuz and then it started crashing with no adjustment to the pinda. I wanted to put this up here so other people having the same issue could see what i did to "fix" it.
RE: Suddenly cannot calibrate no matter what I do
Thank you for that. So much depends on that little PINDA and even with as smart as it is, the printer doesn't know what it can't sense.
RE: Suddenly cannot calibrate no matter what I do
Ryan - if the reset cleared the value to 0 - which is what it should do - there's really no reason the nozzle should contact the bed because the delta provided by the PINDA install is 0.85 mm. So your going in to set the offset to something else isn't making sense unless your PINDA height is way off.
What exactly did you do to resolve the problem? If only the Z-offset value, then what is your current setting (be sure to read the sign).
RE: Suddenly cannot calibrate no matter what I do
After i reset - skipped the wizard - adjusted the z to -2.000 - - XYZ calibrated calibrated with no issues and have had none since.
RE: Suddenly cannot calibrate no matter what I do
Wow - that's counter intuitive.
A setting of -2.000 LOWERS the nozzle a full 2 mm below the 0 setting. So by all rights, you should be digging 2 mm deeper into your bed.
RE: Suddenly cannot calibrate no matter what I do
Yes It doesnt make sense at all but ill be damned if it didnt work lol Gotta be a bug somewhere cuz from factor = perfect -> redo calibrate -> crash into bed with 0 changes
RE: Suddenly cannot calibrate no matter what I do
I have a Prusa MK3 (without the Multi Material Upgrade). I was just printing a normal print and everything was seemingly going fine. About halfway through, though, I discovered that the nozzle was all the way off to the side and it seemed like it lost its calibration. I then tried to recalibrate the printer but no matter what I did, but it always gave me an error that the bed calibration point was not found. I then tried to auto home the printer but it couldn’t find the appropriate spot for that either. When I try to calibrate it, either the nozzle bangs into a side of the printer, or presses so far down that it pushes into the build plate. It seems to have completely lost its understanding of the space around it despite it working just fine while it was in the middle of a print and in a matter of seconds became completely unusable for seemingly no reason. Now no matter what I do I cannot make the calibrate the printer and I’m not sure what I can do from here if it outright cannot find the calibration point.
Just in case anyone finds this post, I had some success fixing this issue. The printer has been an expensive paper weight for the past three years. Support did their best but nothing seemed to work. My son had managed the trouble shooting and finally gave up. I pulled out the printer today and had it calibrated in a couple of hours. There are two maybe three likely issues that caused this. Watching a basic video on proper maintenance was the key step I believe.
1. Loose bolts - One of the three X axis bolts holding the motor in place had become completely undone. The motor was still in place but would have obviously moved slightly. There's a lot of tension on this part of the printer. I had to loosen all of the bolts and carefully put them back, tightening the bolts in an alternating pattern to keep them in line. After recalibration I went back and undid the bolts again and used a small amount of blue locktite. The vibration of the printer likely caused the issue. This would explain why the issue pops up out of no where. Overall this area of the printer seems to have the most stress.
1.A Cracks - both of the orange brackets hold the x axis seem to have small cracks. This looks like a very weak spot and again there is a lot of stress in this area.
2. Clean and service the printer - There was a lot of dust all over the place. After a good wipe down I used a bit of Wahl clipper oil, (it's all I had) on the x axis rods. I then moved the access from the settings and it's movement was much smoother. I did the same for the y and z. After moving all of the access points around a bit to work in the oil all of a sudden the plate moved all the way to the back and the printer head went to the home location. It just seemed like something broke free and it snapped back into place.
Overall I think a good preventative maintenance plan would be very helpful in maintaining your machine. My son just ran it as is, things do need a little love. Good luck!