Help Please
Lately the prints are becoming curved on one side this is always on the right side of the print bed and is starting on the first layer it’s happened on Different a few prints. Not sure if it is not sticking but it only on the right side on multiple prints. Do I need to run through calibration again. Using Pla and prusa slicer with a brim to make sure there a better chance of sticking this one I also uses the glue stick and it did it again. It appears visually the first layers are fine but when it’s finished it looks like this. Any help is appreciated 
RE: Help Please
time to give the sheet a good cleaning - plain dish detergent - clean paper towels , lots of water , dry with more clean paper towels , then really dry by heating on the heated bed and don't touch the surface with bare hands
RE: Help Please
repost from Tim-M30
All Prusa sheets need to be thoroughly cleaned with soap and water before printing PLA ... alcohol is only useful if you use enough to thoroughly rinse the sheet after scrubbing. Most of us don't have gallons to spare. Rinsing with hot water at a sink has those gallons.
Hot Water wash: often, as needed, and after any of the following
(not recommended for daily use on Powder Coated sheets)
- Handle the bed only by the edges.
- Wash the bed in hot water, use a fresh paper towel as a wash cloth, with a few drops of plain dish soap (Dawn, unscented, no anti-bacterial, etc.).
- Rinse well in hot water - if you have very soft water, rinse a bit longer.
- Dry the bed with a fresh paper towel.
- Handle the bed only by the edges.
- Place bed on printer.
Alcohol wash: every few prints as needed
- Gloves recommended.
- Once in a while, an alcohol rinse is helpful to remove PLA residue. It does not remove finger oils well.
- Pour a 5 cm puddle of 91%+ alcohol in the middle of the bed, with clean hands use a fresh paper towel to scrub the bed. Wipe up all the alcohol.
Acetone wash: infrequent as needed
(Not recommended for USE on Powder Coated sheets, but some find it necessary)
- Pour a 2 cm puddle of acetone on the bed, scrub it around with a fresh paper towel. It will evaporate fast as you clean. This step removes PEI oxides that form over time and with heat, and improves PLA adhesion to a like new state.
Streak test: when contamination is suspected
- With a fresh piece of paper towel, and very clean fingers, dampen the towel with 91%+ alcohol, and wipe the bed side to side moving back to front, like you're painting it with alcohol. The alcohol should be thin enough on the towel it quickly evaporates from the bed. If you see any streaks, the bed is dirty and needs a wash.
