75 degrees = 68 degrees. No wonder I couldn’t get things to adhere well sometimes.
As a side note, the temp varies wildly along the plate base. An enclosure would definitely help here.
Has anyone else tested the actual temps versus the set/displayed temps and noticed a difference?
I use PETG on a PEI sheet like OP has. It will stick so hard that it rips the PEI off of the metal plate if I don’t put some hairspray down as layer in between.