Due to high RPM of drilling machine,sometimes drill bit will be damaged. To avoid this problem I made this speed controller. We can use this for any type of AC motor's, saw's, fan etc... and also as light intensity controller.
Step 2: Assembling
- Drill two holes in the gang box. One for AC wire and another for dimmer controller.
- Insert the dimmer in one of the hole and fix it.
- Fix the AC socket.
Step 3: Connections
Wire according to the picture above
Step 4: Finally
Make a Label and attach it.. It's finished.