More ideas from Giannis
How to Build a Self-Balancing Autonomous Arduino Bot (Scheduled via TrafficWonker.com)

Ready to level-up your robot skills? ArduRoller is a self-balancing, inverted pendulum robot that’s also capable of autonomous navigation indoors or out.

0-28V 6-8A Power Supply (LM317, 2N3055)

the schematic diagram of variable power supply which will deliver 0 to output voltage at or electric current.

TRAFFIC LIGHTS Circuit

All the electronics info you need to know about the 555 Timer. With over 80 different electronic circuits that you can build.

20A Transformerless Power Supply

Electronic Circuit Diagrams & Schematics: Simple and DC Power Supply Circuit Diagram - Totally Free Electronic Circuits, Diagrams,Schematics and Projects. We make free Electronic work for student and engineers

Building a Wood CNC Router From Scratch

[David Taylor] needed a CNC router to do some more complex projects — so he did what any maker would do if they’re strapped for cash — make it from scratch!

Picture of CNC out of a scanner (cheap). . .and boy do I have some old printer and scanner parts!

You can salvage parts from scanners and printers to build a cheap CNC machine. Stepper motors and linear guides (rods) have been taken from printers and scanners.