Hey everyone,
So I have finally completed the instructions for building your own ColecoVision and/or Intellivision Paddle Controllers. Please use this thread to submit any questions or thoughts.
I hope you find this useful, and I hope you have fun.
You can find the software and Instructions here:
https://github.com/evg2000/ATTiny84_Version3.1
The STLs for the paddle case are here:
https://www.thingiverse.com/thing:4316115