helical gear pen cup —

Founded helical gear pen cup models & stl files for printing
Pen Holder Tube Storage
ZachMakingStuff
Pen made of Safety Pins
Tom Anderson (The ReaL NEO)
Cup  Mug hanger
workshopbob
Pen holder for desk
Charlie_bean
Gear Ratio
BrandonSpawn
Sams Gears
pleppik
Endless Gear Board
Gilly Barr
Korg KROME
Charly BEGOOD