Re: Hot end temperature variation when bed is also on

Quote
austinqu
Good thinking! I tried exactly what you said and it had no trouble heating up and holding a constant temperature.

So, I'm going to order a new ramps 1.4 board and try it out.

What is your resistance of your headed bed measured at the wires that are inserted into the RAMPS board? If it didn't have problems with the heated bed unplugged, I'd look possibly at the bed. I'm wondering if there is a short or almost no resistance on the heated bed causing voltage control issues with the power supply.