Re: Heated bed power calculation

My guess is that you'd need to cut a track or two to get it to run 24V without issue.

The Mk2b and Mk3 have three terminals. It's effectively 2 resistors with one end on each joined to the other (Point B below). You run them either in series (24V - Point A to Point C) or parallel (12V - Point A+Point C [shorted] to Point B).

Text pic for reference:

  +––––+     +––––+  
+–+ R1 +––+––+ R2 +–+
| +––––+  |  +––––+ |
+         +         +
A         B         C

Note: I know that the board uses 1, 2, 3 but not sure if the numbering for the Mk2b and Mk3 are the same, or if the clones get the numbering right, so I used letters to avoid any possible confusion.