Sheet Slipping During Print
Has anyone had issues with the sheet slipping slightly off alignment while printing? This has happened to me twice this week, causing layer shift about halfway up my parts and ruining the parts. Is that a common problem? I think I'll start putting nuts on the two sheet alignment screws to keep it in place.
Thank you for the input, this is a great community!
Dan
RE: Sheet Slipping During Print
On my MK3S+, no. The heat bed magnets are so strong, the steel sheet can’t possibly move on its own. I have to lift it and separate it from the heat bed to re-align it if I’m sloppy setting it in place the first time.
RE: Sheet Slipping During Print
It must be the sheet I am using. Both times it happened I was using a generic textured sheet ordered from Amazon. The magnetic force feels strong enough to keep it in place. The first time it happened I thought it must have been knocked out of alignment by an external force, such as a person walking by and accidentally bumping into it, but the second time I let the printer run overnight while nobody was around, so external force is ruled out. I'll have a Prusa textured sheet in a few weeks to test out. Maybe the magnets work better with the Prusa sheet.
RE: Sheet Slipping During Print
Has the sheet definitely moved, or are you 'assuming' it has moved?
you need to check the location cutout, against the location pins...
it is possible for the X or Y axis to go out of alignment due to a collision, or due to a faulty bearing... and the results can look the same as a shifted build plate (sheet)
were there any reported collisions?
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: Sheet Slipping During Print
It actually moved. The first time I noticed it had moved after it had been out of alignment for about 1cm in z and moved it back. The remaining, top part of the print was back aligned with the bottom part that was printed before the sheet shifted.
There were no collisions reported, but thank you for mentioning that possibility, I didn't even think to check. Crash report for X and Y are both zero for the last print.
RE:
Maybe try using binder clips on the edges of the sheet in the meantime?
RE: Sheet Slipping During Print
Its probably one of the stainless types of steel. While magnetic they are far less so than a normal high carbon 'spring' steel such as the originals are made from. Magnets just don't effect stainless as much.