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MakerBot Replicator Heater Board REVB

by MakerBot Mar 12, 2012
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Could anyone here explain the reason for (GND)-PAD0
amp; GND-PAD1 to me? The reason why i ask is i need to copy the design, which seems identical with the Heated bed for the ToM. Thanks in advance.

So, whats the resistance of this thing supposed to be?

I measured mine at about 4-5 Ohms.  So at 24V and 4 Ohms that would be 6 Amps and about 150 Watts.

Does this thing have a surface mount molex connector again?

Yes, it looks like its solder tabs :(