Round knob for 10mm threaded rod
thingiverse
To replace a lost knob on my sailing boat's gas lever, I crafted a new one with a 10mm metric thread. For the OpenSCAD file, use the screw library from syvwlch (http://www.thingiverse.com/thing:8793). Apply the knob to a 10mm bolt while it's still warm for optimal fitment.
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