ToM Extruder Relay Fix
thingiverse
An alternative for those without "Double Throw" relays is the ToM Extruder Relay Fix, which operates only in forward direction. It requires 2x 12V single throw relays, 2x electrolytic capacitors and 3x 1N400X diodes. To revive a failing ToM extruder motor, gather parts, assemble per circuit diagram, and continue use until replacement parts arrive.
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