Ever since my original Creality CR-10S Pro heated bed quit and was replaced, I have had trouble with bed adhesion and printed first layer material warping using PLA and auto bed leveling.
I am getting bed temperature variation between 71 °C (160 °F) to 76 °C (169 °F) throughout the 320x310 mm bed. Is this amount of temperature variation typical? I don't have any measured temperature variation data for the original heated bed, so don't have any reference data to compare.
Note: the manual (and about every internet site visited) suggested 60 °C for bed temperature for PLA, but I never could get any material adhesion until I raised the bed temperature to 80 °C using the stock heated bed. I have had no real issues with bed adhesion until the original heated bed died after about one year of heavy use with 10+ 1 kg filament reels.
Not sure how much more I can do to determine, what is suggested as "my bed adhesion problem".
Have tried everything:
- painter tape worked the best, until trying to get the tape off of print
- glass with dimples
- glass with a glue stick
- new bed sticker
- cleaning after every print
- varying print head height.
The only thing left is the filament. manufacture.
Through all my tests it takes 80 °C to get the first layer to stick and if I reduce temp to 60 °C after the first layer, the print comes off. Could a poor performing set of fans cause this to occur?