Welcome back to Hackaday’s daily dive. Today we’re looking at an ingenious build by Red: an automatic wire stripper and cutter that turns tedious work into a button press. At its heart sits an ESP32 microcontroller, driving three NEMA 17 stepper motors through A4988 stepper drivers. Two motors handle the cutting and stripping blades via threaded rods, while the third motor—borrowed from a 3D printer extruder—feeds wire through the machine.

A rotary encoder with a push-button and a small OLED display let you “graphically represent the wire for stripping,” so you can dial in the exact length and insulation removal at each end. Once you’ve selected your measurements, you simply press a button, and the machine strips and cuts the wire for you. Stripped wire ends fall neatly into a 3D-printed bin, keeping your workspace tidy.

For anyone tired of manual wire prep, this build promises big time savings. Check out the video for the full walkthrough.
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