Go to for balanced, unbiased news from Straight Arrow News I got my custom printed circuit boards from PCBWay: You can download the STL files for the Rack Driven 7 Segment Display Here: Or Become an Engineezy Thangs Member and get access to 2+ premium files every month: My 3D Printers: Bambu Lab: Prusa: #a_aid=Engineezy This is the Laser Cutter I use for all my projects: This is the filament I use for all my projects: Grab some of the merch featured in this video: I have a bunch of cool mechanical 3d print files available on my website: I also have a Patreon if you want to see some exclusive behind the scenes content: The electric screwdriver I used to assemble and disassemble this thing many times is a game changer: This is the DIY Split Flap by Dave Madison: These are the channels I referenced in this video: @Flower-3D @karakurist This is the PCB Design Tutorial: After going through a plethora of different no-video display options, I finally settled on building a Split flap display. This whole project is a side quest from my real life platformer game. Going from mechanical counters, to rack driven 7 segment displays, with some stops in crazy mechanical adventurs along the way. This video tested my mechanical design skills, my electronics skills, and my arduino programming skills. I even learned some new things as well! 0:16 - Why? 2:25 - E Paper Display 2:50 - The Mechanical Counter 3:40 - Side Quest: Sliding 7 Segment Display 4:08 - Side Quest: Rack Driven 7 Segment Display 5:35 - Side Quest on Side Quest: PCB Design 6:34 - Some impractical (but cool) displays 7:32 - A Single Split Flap 8:47 - A Better Single Split Flap 9:50 - Building the Full Display 11:05 - The Full Display in Action 11:40 - Setting the High Score