The bed on my Up Box+ is painfully slow to heat to 90ºC
I've tried sitting a sheet of insulation on the bed during warmup. This works OK, but when you remove the sheet, the temperature stagnates or drops a few degrees. Presumably this is due to the way the PID loop is tuned, it ramped down to a low level of power with the insulator, then takes minutes to respond and put in enough power to continue heating without the insulator.
Given access to the PID settings, I could start my ABS prints much faster.
Please allow access to the P,I & D gain factors, or at least re-tune them for faster heat-up times.
Also the maximum bed temperature appears to be 95ºC. I have some materials that call for 110ºC.
Please allow custom bed temperatures up to at least 110ºC