a very useful pcb driil press with foot pedal
i use 3 555 timers to adjust up,down and drill speed
Step 1: Pcb Layout & Connection Diagram
i use expesspcb, its a free and easy program to make pcb's
the mosfets are from an old PC motherboard
Step 2: Build the Press Drill
i use items from old printers. you can use better meterials!
the motor for up-down movement, must be geared for easiest control
the drill is a cheap 12v dremmel
Step 3: Make the Drill Start Automatically
make the drill start automatically when it reach the pcb
i use a terminal switch at back place of the drill's motor
Step 4: Make the Up/down Movement Stop Automatically
make the up/down movement stop automatically
Step 5: Connect the Wiring
connect all the cables..
the power supply is 12v, at least 2A
Step 6: Make a Foot Pedal
i make a simple foot pedal with a button switch.
Participated in the
Invention Challenge 2017