Simple N20 Screw Driver
Intro: Simple N20 Screw Driver
Cordless power screwdriver is not so expensive, I here to make a simple one with LED lighting in a cheaper way and is good for STEM project.
STEP 1: Understanding the Circuit
There are plenty designs of cordless power screwdriver which using N20 motor, the circuit is simple and here I draw them for illustration.
STEP 2: Installing LED
The screwdriver using 2 LED for lighting, only "one" will be "ON" when pressing the switch.
The 330Ω resisitor is used for limiting the current.
STEP 3: Installing Screwdriver Bit
U can using a "copper connector" to connect hex bits (precision) or using the 3D printed part (provided) for commonly used hex bits
STEP 4: Installing Microswitches
U need to drill 4 holes for holding the microswitches and secure them by using M2 screws and nuts.
Please refer to "Step 1" for wiring and using zip tie to organize them.
STEP 5: Finished
Although u can use 9V battery, I usually use old one (from previous arduino projects)
Use at your own risks !
Cheers