In this Instructable, Gelstronic proves anyone can afford a 3D printer. Why? Because you can literally build one out of computer e-waste â€” specifically, DVD/CD drives. His goal was to build a printer for less than a hundred euros. And he darn well did it. The most expensive part was the hot-end coming in at 20 euros. He managed to find a Chinese Arduino MEGA 2560 for only 10 euros, and everything else was basically pocket change. The hot end features a geared NEMA 17 look-a-like stepper motor he found in a printer, and the XYZ axis all make use of the DVD drive trays. The only downside to this massive reusing of e-waste is the bed size. Due to the limited range of motion…
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