Pong Ball Display

These are the files I used to make a ping-pong ball display! This is for somewhat advanced makers and assumes some knowledge to put everything together as well as access to tools. It attempts to simplify other designs out there for similar displays by using large, 3d printed parts to hold the diffusers, Custom PCBs to get the spacing right, and a laser cut back plane for ease of assembly.

Things you will need:

* 20 PCBs - I got mine from JLCPCB 30 boards for $9.30
* 128 5050 SMD LEDs that use the standard data format. I used SK6812's because I wanted true white. I bought 1000 of them for $80 on eBay - meaning I used about $10.00 worth for this project. I would suggest buying some extra.
* 128 38mm ping (or beer) pong balls. I got plastic so they wouldn't be as flammable as real ping pong balls. Read reviews - if everyone is complaining that they don't bounce right they're perfect for this! (eBay, $15)
* 40 M3x4 hex screws (~$5)
* Wire
* Arduino Uno (or µController of choic