Prowin CNC Hopup Arm - Original and Flat

An exact copy of the hop-up arm used in the Prowin CNC hop up chamber. There is a copy of the original part, and a…
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updated December 24, 2021

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An exact copy of the hop-up arm used in the Prowin CNC hop up chamber.

There is a copy of the original part, and a sewed-off version for R-hop and similar.

The original part has a slanted tooth that goes into the hopup wheel, what makes the model tricky for a print on an FDM printer in ABS, because of the warping that occurs on the slanted side. So you should rather use the FDM version that has the bottom side flat and then after printing sand or file the bottom side of the tooth to match its upper side. If you have an SLA printer, you can print the SLA version with both sides of the tooth slanted.

Use a 2.0 drill bit to clear the hole and optionally some sand-paper to give a final touch.

Print in ABS. Do not use PET or PET-G because it bends, and also avoid PLA since it will melt on the first hot day.

Category: Sport & Outdoors

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Model origin

The author marked this model as their own original creation. Imported from Thingiverse.

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