Hackaday21h ago

An Electric Jellyfish For Androids

https://fed.brid.gy/r/https://hackaday.com/2026/03/21/an-electric-jellyfish-for-androids/

1320h ago
An Electric Jellyfish For Androids https://hackaday.com/2026/03/21/an-electric-jellyfish-for-androids/
#Classichacks #Microcontrollers #Bladerunner #CheapYellowDisplay #CYD #Electricsheep
An Electric Jellyfish For Androids

We have to admit, we didn’t know that we wanted a desktop electric jellyfish until seeing [likeablob]’s Denki-Kurage, but it’s one of those projects that just fills a need so perfectly. The need be…

Hackaday
13Mar 15
This Printed Zipper Repair Requires No Unsewing https://hackaday.com/2026/03/14/this-printed-zipper-repair-requires-no-unsewing/
#Classichacks #WearableHacks #3dprinted #Diy #Zipper
This Printed Zipper Repair Requires No Unsewing

If a zipper breaks, a 3D printer might not be the first tool one reaches for — but it’s more feasible than one might think. [MisterJ]’s zipper slider replacement is the kind of 3D…

Hackaday
HackadayMar 15

This Printed Zipper Repair Requires No Unsewing

https://fed.brid.gy/r/https://hackaday.com/2026/03/14/this-printed-zipper-repair-requires-no-unsewing/

13Mar 13
Perfecting the Shape-Changing Fruit Bowl https://hackaday.com/2026/03/13/perfecting-the-shape-changing-fruit-bowl/
#Classichacks #Homehacks #Bowl #Iris #Mechanicaliris #Simonegiertz
Perfecting The Shape-Changing Fruit Bowl

Fruit bowls have an unavoidable annoyance– not flies and rotten fruit, those would be avoidable if your diet was better. No, it’s that the bowl is never the right size. Either your frui…

Hackaday
HackadayMar 13

Perfecting the Shape-Changing Fruit Bowl

https://fed.brid.gy/r/https://hackaday.com/2026/03/13/perfecting-the-shape-changing-fruit-bowl/

13Mar 11
A Rotary Dial The 3D Printed Way https://hackaday.com/2026/03/11/a-rotary-dial-the-3d-printed-way/
#Classichacks #Parts #Dialphone #Rotarydial #Rotaryphone
A Rotary Dial The 3D Printed Way

There’s a meme which may have a basis in truth, of a teenager left clueless when presented with a rotary telephone. The dial, in reality a mechanical pulse chain generator, was once ubiquitou…

Hackaday
HackadayMar 10

Clear Resin Casting Replicates Old Acrylic for Selectric Repair

https://fed.brid.gy/r/https://hackaday.com/2026/03/10/clear-resin-casting-replicates-old-acrylic-for-selectric-repair/

HackadayMar 11

It’s 1979 – What Exactly Did That ∫ Key Do?

https://fed.brid.gy/r/https://hackaday.com/2026/03/10/its-1979-what-exactly-did-that-%e2%88%ab-key-do/

13Mar 11
It’s 1979 – What Exactly Did That ∫ Key Do? https://hackaday.com/2026/03/10/its-1979-what-exactly-did-that-%e2%88%ab-key-do/
#Classichacks #ReverseEngineering #Algorithm #HP #Hpcalculator #Reverseengineering #ScientificCalculator
It’s 1979 – What Exactly Did That ∫ Key Do?

[Michel Jean] asked a question few others might: what exactly is going on under the hood of a classic HP scientific calculator when one presses the ∫ key? A numerical integration, sure, but how exa…

Hackaday