Mini 3D Printer built from 3 CD-Rom drives and a few other parts.
Printable area is around 40 x 40 x 40 mm.
Printer in action: https://youtu.be/u6P5-a8fF3A

The design is based on https://www.instructables.com/id/eWaste-60-3DPrinter/
Also i just found https://www.thingiverse.com/thing:3625715
You may find some useful instructions there


Warning: just to make sure nobody expects this printer to work as reliable as a normal 3D printer. The stepper motors of the CD-Rom drives are very weak and cannot be run at high currents or they will burn out. As a result they easily lose steps if for example the hotend drags across the print too much. Even at low currents the stepper motors still get quite hot.


What you will need in addition to the 3 CD-Rom drives
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- E3D V6 Hotend (or a clone)
- some bowden tube (around 30-40cm)
- a normal stepper motor for the extruder
- any kind of 3D printer mainboard (i used an Anet A8 - you need to modify the stepper current though!…

Клуб обладателей 3D-принтера Ender-3; Ender-3x и  Ender-3 Pro https://ender3.club Если у вас проблема и вы ищете совета то: 1) Распечатайте калибровочную модель:  https://vk.com/album-26626593_269583825  Дефекты лучше всего различимы на сером пластике. 2) Прикрепите несколько фото и/или видео. 3)..