For the past few days I’ve been battling with this error using the ‘Up! Plus 2‘ 3D printer. The first few layers seem to be slipping or shifting, sometimes only a couple of millimeters (which doesn’t normally warrant stopping the print), but sometimes can be about 10mm which makes a real mess. What’s even more puzzling is that sometimes it happens, and sometimes not.
After reading this thread on the pp3dp forum, I’m thinking it’s time to open it up and check the moving parts. I’ve sat and watched as this error happens and there is no noticeable skip or any sound to indicate something is wrong, but hopefully I can get to the bottom of it because I hate wasting material and time. Actually, thinking as I type, the slip is ALWAYS in the front-to-back direction, so maybe this is a good place to start… I’ll share anything I discover in case you also come across this problem. If you’ve got any solutions, please leave a comment 🙂
UPDATE 08/12/2014: I opened up the arm controlling the front-to-back movement of the print plate – there was a bit of debris in there from the belt, so I’ve cleaned this out and also greased the silver rail that the plate moves along. So far 4 prints and absolutely no slipping! If you notice this slipping problem I recommend a clean and some grease, only takes a few minutes and seems to make a big difference! Check out a future post for photos of these internal details.
– Posted by James Novak