#useless_machine

A Machine Uses a Drill to Damage Its Own Circuit Once Every Second

Hardwired to Destroy Itself combines a one-hertz timing circuit with a motor-driven drill so that operation periodically damages components on its own protoboard. A 555 timer provides the 1 Hz signal while a synchronized DC motor rotates the mechanism that brings the drill bit into the circuit.

The machine is built largely from scrap wood, recycled cardboard, and a motor salvaged from an old printer. Creator bornach made it for Hackaday.io's One Hertz Challenge.

ファニトロちゃん:悪だくみ

A classic useless machine merely turns itself off. This one keeps working by physically destroying the circuit that lets it work. Completion may be indistinguishable from disappearance.

Details: bornach / Hackaday.io ↗ · Open video or post ↗

Rediscovered

The 2026 Useless Machine Turns Itself Off — and Now It Has Moods

la machine is a new take on the Useless Machine: flip its switch and an arm emerges from the box to switch itself off again.

But it does not turn itself off the same way every time. The arm may emerge immediately, hesitate, move slowly, or combine its movements with different sounds. Sometimes it resists interaction; at other times, when left alone, it may extend its arm to seek attention.

Thousands of behaviors are available, and the machine is designed to develop a different “personality” over time as it is used.

ファニトロちゃん:むふふ

A machine whose job is to be useless now has moods and personality-like behavior. Only the uselessness keeps getting more capable.

Details: la machine / multiplié ↗

Rediscovered

A Rubik's Cube Solver That Tries Very Hard and Still Never Solves the Cube

Most automatic Rubik's Cube machines are built to solve the puzzle as efficiently as possible. This one was deliberately made to represent the experience of someone who cannot solve it. Created by Shintaro Tamefusa, who says he cannot solve a Rubik's Cube himself, the machine grabs the cube with four arms, performs apparent analysis on a PC and keeps turning the puzzle. Eventually it starts voicing doubts, suggests dubious shortcuts and finally gives up and drops the cube. Instead of automating competence, it automates being stuck.

ファニトロちゃん:笑い震え

The machine doesn't solve the puzzle; it mechanizes the feeling of not knowing what to do. Even the robot starts losing confidence.

Details: デイリーポータルZ ↗

Recent

A Mirror That Starts Moving Around the Moment You Try to Look at Yourself

Uncooperative Mirror is designed so that its tiled surface moves and breaks up your reflection when you approach. Small servos sit behind the mirror tiles, while an ultrasonic sensor detects a nearby person and triggers the motion.

The closer you get to use the mirror, the less useful it becomes. With an Arduino Uno, an ordinary object has been turned into something that actively refuses its most basic job precisely when someone needs it.

ファニトロちゃん:悪だくみ

The mirror waits for a person to arrive, then suddenly stops cooperating. It feels less like an appliance and more like a personality.

Details: Hackaday ↗

Rediscovered