V4-variable.brd
13 kb /
362 downloads /
2 years ago
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PCB heated print bed by prusajr is licensed under the Attribution - Non-Commercial - Creative Commons license.
© 2010 by prusajr
Instructions
etch it on FR4 35um copper board, should cost about $20 or if you are interested email me I can probably etch some for you. Not tinning or copper plating, this would lower the resistance.
There are 4 resistors on the board, final resistance depends how you connect them by solder bridges. Parallel -> 1.3ohms. Serial -> 21ohms.