Shared by NikodemBartnik on Thingiverse:
Doter is a huge dot matrix printer based on Arduino. Most of the parts are 3D printed, there are also 28BYJ48 stepper motors (the cheapest stepper motors you can find) and some basic components, there is also PCB that you can buy right here. It can print on the paper up to 55cm wide and infinity long. More info about this project can be found on instructables.
None of this models need supports, pulleys has supports build in, because it would be impossible to remove supports from the inside of the pulley. Those models are rather easy to print, but it takes some time, because they are quite big.
Wheels that will move the paper should be printed with flex filament to do it better. I made a rim for this wheel that should be printed with PLA and on this wheel you can put a rubber wheel.
You can also buy PCB for this project on tindie:
And subscribe to my channel: https://goo.gl/x6Y32E
For more info don’t forget to check out instructables project about doter. That’s my biggest project when it comes to size, and that’s awesome! If you have any idea of what I can print on 30 meters (yes, meters) long paper, let me know in the comments!
Download the files and learn more
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!
The Adafruit Learning System has dozens of great tools to get you well on your way to creating incredible works of engineering, interactive art, and design with your 3D printer! If you’ve made a cool project that combines 3D printing and electronics, be sure to let us know, and we’ll feature it here!