There are a lot of great things happening at ChallengeYourself.blog! I recently purchased a 3D printer, an Arduino Mega, and some driver boards for upgrading my robot arm! I shot the video for this early last week and have already printed a few items for upgrading the printer.br br Special thanks those below for recommendations and suggestions!br -Michael Robinson (Arduino Mega)br -QuestionMore94 (Ender 3 3D printer & Fusion 360)br -rbm78bln (stepper motor driver boards) br br br SUPPORTING CHALLENGEYOURSELF.BLOG br If you'd like to support my work please head over to and become a patron today! br br FOLLOW CHALLENGEYOURSELF.