My print keeps on sliding off the build plate any advice on what to do?
Hello Prusa community I had some issues with printing the model shown in Orca slicer down here and I had some possible questions as to why the print would fail
For some context here are the things i tried to fix
-increase bed temp for the filament to be from 70-75 degrees Celsius
-recalibrate XYZ and Z offset
-Clean the build plate with dish soap and a kitchen sponge along with drying it with a microfiber cloth
-Increase the temp of the first layer for my PETG-CF (elegoo) from 245-250 degrees Celcius for the first layer
-make the model go on its side and prints supports (ended up with squiggly lines towards the end)
So with all of these is it possible that I should just print the model vertically again but add supports and a brim (orange model)
RE: My print keeps on sliding off the build plate any advice on what to do?
Almost always it is because the print sheet is oily (oil films can be invisible).
Clean the build plate with dish soap and a kitchen sponge along with drying it with a microfiber cloth
Do not use a sponge, instead, use a half a fresh paper towel as your scrubber, and just a drop or two of unscented Dawn detergent. Scrub and rinse until the water beads and sheets off leaving a mostly dry surface. Once clean, use a fresh paper towel to dry the remaining few drops of water -- cloth wipes usually have fabric softeners that foul the build plate. Move the clean plate to the printer, start your print; or if not planning to print soon, place the clean sheet and warm the bed to 60c for a few minutes to dry the sheet.
Handle the plate only by the edges, never ever touch the build surface, even when removing parts. One fingerprint goes a very long way.
If using the Prusa Textured sheet, PLA doesn't stick to it very well, tho if very clean, and the part has a large surface area, it can work. I use third party textured sheets, they just work better.
PETG should not be an issue with a clean textured sheet, but you want the bed at least 85c, 70 is too cold for PETG.
RE: My print keeps on sliding off the build plate any advice on what to do?
Apart from bed adhesion, are you positive than the Z offset of the first layer is spot on ?. No offence meant, but keep in mind that, with time, the nozzle wears a bit and/or the extruder part holding the Pinda may sag due to bed heat. All this changes the Z offset. Not that much, but enough to make trouble.
A kitchen sponge is OK for cleaning the plates, provided you use it solely for this purpose and you always hold the sponge wearing disposable gloves.
RE: My print keeps on sliding off the build plate any advice on what to do?
If it is a new Textured/Rough Prusa sheet, they sometimes have a manufacturing film on them. I had to scrub mine with the back of the kitchen sponge gently to bit-more-than-gently to get rid of the film (using dish soap). I have not used PETG-CF, but I’ve used a ton of PETG and it sticks really well to a rough PEI sheet. As one said, ensure your Z is really good.. should be pretty squished. Your model looks like it is tall and (if hollow) might have a very small surface area holding it to the bed, so I’d use a 5-7mm brim. (I would try without support first) In some situations, I’ve also used glue stick to increase the adhesion. My PETG uses 85 as a bed adhesion and if you don’t use the right bed temp, PETG won’t stick.
RE: My print keeps on sliding off the build plate any advice on what to do?
So it was bed temps being and brim but my z offset when I did it on -2 it was basically like a uniform piece no gaps at it was like looking at a the back of your phone levels of uniformity no gaps just straight up a perfect square