I have noticed my print do not stick regardless of the method used to prepare the bed. PLA is really NOT playing well with me.
I have noticed over last month, that the bed takes longer and longer to heat… now I have also discovered the bed is heating very unevenly.
So testing the bed temperature with my meter, for the (ZCODE set to 65 deg C) tested 6 points.
Back left 54 deg C
back right 56 deg C
Front left 66 deg C
Front right 64 deg C
by connector to bed 52 deg C
Centre 60 deg C
My Prints not sticking to the bed (rising during printing) are worst towards the front right.
I have cleaned under the plate, and sanded the print bed surface, used glue stick, and acetone mixed with ABS. Slight improvement, but overall still cannot print larger than 7 cm x 7 cm reliably for the warping issues…
Any help would be greatly appreciated…
I have just purchased the metal hotend for test on one of my printers, as PLA is my preferred filament, so I am dedicating one printer to the job. This is why I need to fix the warping, and bed sticking issues.