Designed this fold roller (I know it looks like a pizza cutter ^^) to make clean folds on cardboards.
I use a section of brass cylinder (external diameter : 5mm, internal diameter : ~4mm) to act as a bearing and prevent the wheel to wear out too fast on the screw.
Designed for M4 nuts and screws (it requires 3 of each), I used a nilock nut on the wheel one to be able to lock it without tightening it too much. It allows the wheel to roll freely.
When using it in the same direction as the cardboard ‘grooves’ don’t press it too hard or it could cut into the cardboard. After a few test I realised you don’t have to press it really hard in any direction to make a proper fold, even on thick cardboard.
Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!
Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.