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Re: Aluminium Heat Bed - 9 years ago

i have the same issue where my Mk3 bed wont go above 70c the thought i have is what about buying a second 24V supply and a relay (12v/24v) then running the 12v bed power cable from the ramps to a relay thats 12v on the coil then run the 24v power supply thro the switching side direct to the bed wired in 24v configuration that way whenever the ramps tells the bed to warm the relay will aloow for 2