I always wanted to build my own useless machine after seeing the original posted on instructables and I admit I really really wanted to buy the kit from Solarbotics at Maker Faire this year. As always, I had to give it my own spin. I used the classic red safety switch in an earlier project, and I remember receiving a lot of requests for a box with just a light up version. I guess the idea of having a final countdown switch on your desk is a universal dream for some of us.
I pretty much followed the instructable below with one adjustment. Since the red safety switch from Radio Shack only comes in SPST, I had to find another way to reverse the DC motor. Simple, I just added a DPDT switch to the circuit. The most difficult part was using the ShapeLock to mold the servo arm and fitting everything securely in the box.
I love this project! The reactions are priceless!
Resources:
Build-your-own Useless Machine Kit
The Original Most Useless Machine
Where’s my end of the world ultimatum???? I demand satisfaction!! =P Imagine if that switch was the actual device in president’s launch-all-nukes suitcase…..peace preserved through engineered innovation. Cool box!
Ha! that’s great! Tell me you mounted it on your wall in your house somewhere and told people never to touch it
It actually sits at my office as a constant reminder to have fun! =) I do love the idea of this on my wall though… a possible idea is to do this with a light switch!!! haha Thanks for the comment!