Knob/crank handle for 5/16 inch carriage bolt
thingiverse
This accessory works well with Marcus Wolschon's PCB vise found on Thingiverse. However, I opted for a 5/16 inch carriage bolt instead of the M8 threaded rod due to its widespread availability in U.S. hardware stores. Additionally, I have different bolt lengths to avoid unsightly protrusions with large PCBs. Instead of the M4 smooth rod, I used a 1/8 inch rod which fits perfectly within the existing holes without any modifications. To install, simply print, push the carriage bolt through the square hole, and secure it with a 5/16 inch nut.
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