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Printbed not heating up Ramps 1.4

DIPtheRipper

Printbed not heating up Ramps 1.4
October 15, 2014 07:36AM

Registered: 9 years ago
Posts: 4

Hi, there, I've working on my RAMPS 1.4 and had the problem on my printbed. The voltage across D10 is 12v and the hot end works properly, but the voltage across D8 is 7mv and the printbed is not heating.
I think there's problem with the Mosfet but I'm not sure whether it's on the RAMPS board or in the Arduino Programming?
My voltage source is 12V 5A.
Thanks for reading!

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Andrew Smith

Re: Printbed not heating up Ramps 1.4
October 15, 2014 10:31AM

Registered: 13 years ago
Posts: 643

D8 is powered by the 11A terminals, so you'll need to connect an adequate power supply to those or you have no power to the heated bed - which your 5A supply couldn't power in any case.

Edited 1 time(s). Last edit at 10/15/2014 10:33AM by Andrew Smith.