XL750 Round Counter 3D Printer Model

Author: @
License: CC BY-SA
File formats: stl
Download type: zip
Size:8.3KB

The file 'XL750 Round Counter 3D Printer Model' is (stl) file type, size is 8.3KB.

Summary

Simple print to attach to the chute on a dillon XL750 and counts rounds as they drop through.
Printed in PLA
The break beam sensors have proven very effective. I havent been able to get it to skip a count in any realistic tumbling or bouncing I could come up with.
You will need an arduino or similar and a screen. Ardunio can directly power these sensors.
I built in a 75ms non blocking delay in programming to avoid double counts since its reaction time is very fast however i dont know if its necessary or not. I used INPUT_PULLUP on the arduino pinmode setup as well since the documentation suggested it necessary
Break beam sensor used:
https://www.amazon.com/dp/B01BU6YBWU
details from adafruit: https://www.adafruit.com/product/2167

Round_Counter_Mount.stl 42.9KB