Synopsis

Save time manually drilling PCBs with this project.  Speed and depth of plunge are variable.  Triggering is done with a foot-switch.  Mini-laser alignment helps with positioning. You've got to try this out.  Your friends and family will thank you in the most generous ways.

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Parts List

• Resistor 180Ω
• Resistor 100KΩ
• Resistor 470KΩ
• Capacitor 1µF
• 555 Timer IC
• LEDs – 2
• Diodes (1N4007) – 2
• SPDT Slide Switch
• 9V Battery
• Connecting Wires