Hello!
I have 2 P1S printers. The first one has been working for over a year. It has developed a problem. It started stretching parts diagonally. The photo shows the direction of stretching with arrows. That is, the circle becomes an oval. The second printer prints the same models correctly. There were no errors and nothing changed. I just noticed this defect at some point.
Maybe there is a problem with the belts? Please tell me what and where to check?
I tried to do calibration. I launched a full one through the printer menu. This helped a little. The defect became smaller for a while. But then it increased again.
I recommend you try to retention the belts. Turn off the printer and unscrew the 4 belt screws on the back. Move the toolhead back and forth from the front to the back of the printer. Tighten the screws.
Thank you! I did as you said. It got better. But it seems to me that there is still a small distortion. Maybe one belt is damaged/stretched?
What you describe is like there was variation between alpha and beta motors (says alpha red, beta blue), or one pulley on the motor shaft was slightly bigger than the other. I know it is likely impossible, but that what going to happen in corexy system.
It could be one belt is stretched and a bit loosening.
All is just educational guess.
That is quite possible, how many hours do you have on the printer?
Printing time 377 hours.
I also noticed that at the beginning of printing, when cleaning the nozzle, a sound similar to a crunch is heard. Perhaps the belt is slipping. I reduced the acceleration in the starting G-code from 10,000 to 5,000. The crunch disappeared.
The comments shared above are correct.
Usually, the issue reported occurs when the belt tension is incorrect.
It is recommended to follow this guide from start to finish, then perform a full calibration.
It should solve the problem, but if the issue persists, please open a ticket and our team will assist you in solving the issue.
The belt tensioning wiki says to Gently move the toolhead back and forth several times, and then move it to the rear end of the printer. The video shows only one or two motions of the tool head, back and forth just a few centimeters, before moving it to the rear.
I feel I get better results (and very little skew) when I move the toolhead through its full range in all directions multiple times.
I do not know what other options you have to adjust for skew on a P1 printer, but there are a couple of methods to adjust an X1C, discussed here.
Thanks everyone for your help! I’ll set it up. I’ll write about the results later.