Hidden blower fan for virtual pinball

Add a fan to your virtual pinball cabinet for games like twister

You'll need:

4 m3 by 15mm screws or longer

120 x 120 computer fan. The more powerful the better.

Small rubber bands 

I highly recommended you print the fan flap on a textured bed so it blends in to the coin door

Installation:

Remove the bill acceptor cover from your coin door and save the nuts for later 

Use 2 of the m3 screws to install the fan flap. make sure that the flap can swing freely with out binding.

Insert the remaining to screws as shown.

Add the rubber band(s) on to the screws and tighten the bottom screw. the rubber bands should be tight enough to close the flap but just barely, if its to tight the flap wont open when the fan turns on.

Install the assembly on the door and reuse the nuts from disassembly.

Install the fan on to the mount using the screws that came with the fan 

Wire in the fan and set it up and enjoy.