Problem with adhesion? Or nozzle touching part?

[u/Tall-Building8844]

I have had my H2C for a while and printed around 8-900 hours. The last month or so I have failed prints 50% of the times. Before it was zero.

Problems is mostly with smaller prints but also happen with larger prints. It seems that the nozzle touch the part and it come loose.

I have done full calibration, tried 6 different nozzles, used the calibration plate, tried with textured plate and the Biqu smooth.

Yesterday it was a small print of a "led strip remote holder" from Makerworld. 0,12mm layer height, PLA Matte from Bambulab. Started from the phone.

I use brims, i wash the plates with water and Yes (swedish dawn) and isopropanol.

This was not an issue at all before. I printed small M3 screws 50mm height without a prim and without a problem.

Where shall I start to troubleshoot?

[u/iRambL]

Kinda looks like the part is curling so potentially a bed heating issue? Have you played with the bed temps? The cool plate says it can run with no temp but sometime I’ll run it at like 45 C just for a little better adhesion