Round Coin Slot

This is a printable coin slot for my arcade machine based on : http://www.8linesupply.com/p/slot-round.html

The matching piece contains a mounting bracket for an Optical Interrupter Sensor like this: https://www.amazon.com/gp/product/B008DG96NU/ref=oh_aui_detailpage_o08_s01?ie=UTF8&psc=1

Ultimately I plan on replacing this with a nice metal one and adapting the Mate but this works great to detect a coin falling through the slot.