Bigger roller for Solder Scroll
This is the "Small toothed roller.stl" with the roller's outer diameter scaled up by 6%.
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updated April 15, 2024
Model files
solder-pen-all-parts-Small toothed roller-increased diameter.stl
Model origin
The author remixed this model.
Differences of the remix compared to the original
The original roller did not grip 0.25mm soldering wire. This version has the roller's outer diameter increased by 6% while the inner diameter and thickness remain unchanged.
This way it can grip 0.25mm wire gently to push it through. Too much force and it will deform. Be careful how tight you screw the knob.
During installation I recommend removing the rollers so you can guide the thin wire easier.