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Pinball Dollar Acceptor Fan Blower — image 1
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Pinball Dollar Acceptor Fan Blower

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This is a 92mm fan blower assembly that fits in the bill acceptor hole of a Williams/Bally coin door with a harness.

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Creative Commons — Attribution — Noncommercial

The Williams/Bally coin doors have a dollar acceptor hole that is normally covered by a plate. This model replaces the build plate and allows for a 92mm fan to work in games that support one via DOF (Whirlwind, Twister, etc.).

The door/fan assembly needs to be printed with support. I used “paint on supports” in order to exclude the fan screw holes. PET-G with a 15% infill which resulted in a very sturdy piece. The blower assembly needs to be printed with support too, but didn't require any customization. Organic supports worked really well in both cases.

This model drew all of its inspiration from https://www.printables.com/model/685066-hidden-blower-fan-for-virtual-pinball which is designed for a different coin door. Included is the FreeCAD model to make remixing much easier.

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