Here’s a list of YouTube video’s.
Cutting Coasters on my 40w laser cutter
DMX Display preliminary investigations
#5 How to: ArDMX recieveing DMX on Arduino Mega
#4 5v stepper motors from eBay… as cheap as chips… 28BYJ-48 + ULN2003 Driver
#3 How to: ArDMX receiving DMX with Arduno; improved and explained
Cheap 40w laser cutter from eBay
#2 How to: ArDMX receiving DMX with Arduino.
#1 How to: WS2801 RGB 5050 LED’s on Arduino uno, shiftOut