DIY 3 Stepper motor Controller

Here is very simple 3 stepper motor controller that uses parallel port interfacing from pc. It may be used for CNC machine, robotics, AGVs etc. I have used it in my small CNC machine that will be discussed in later post. I have followed this instructables link.

Things required:

• Breadboard
• 3 ULN 2003 (Stepper motor controller IC easily  available at electronics shops..........almost RS 15 each)
• 3 Bipolar stepper motors (extract from scrap scanner)
• DB 25 male parallel port connector
• 12V Supply
• soldering iron
• wires
• Basic knowledge of electronics...............etc

Construction: