U-Turn No-Bridge Infinity Loop Challenge

[onion]

alright, so I've seen every type of badge solution for U-Turn so far. , , , , and ... I've also seen solutions that that infinitely loop through the U-Turn forever... but here is the challenge I'm proposing:

To build a contraption for U-Turn that infinitely loops WITHOUT the aid of a seperate bridge. Meaning only one fully in-tact contraption.

Is it possible? Let's find out!

[Hurkyl]

Does the red wheel have to be part of the contraption, or can it be separate?

[jdelgado06]

it's ugly, and slow, but it works!

http://FantasticContraption.com/?designId=911534

[Buu]

Here you go http://FantasticContraption.com/?designId=913595

[Hurkyl]

Oh well, mine wasn't perpetual anyways. Stressing the physics takes its toll after an hour and a half! jdelgado06's gets stuck too. Buu's falls off after a few cycles.

[NightStryke]

Here you go http://FantasticContraption.com/?designId=913595

I'm afraid that that one eventually falls off.

[Guest]

I found this one, it's not mine, I've watched it for 5 loops so i don't know how much it goes after but, http://FantasticContraption.com/?designId=916596.


Credit to Hapl0

[Buu]

This one looks promising http://FantasticContraption.com/?designId=932656

[onion]

This one looks promising http://FantasticContraption.com/?designId=932656

awesome, this one looks like it'll go on forever

[Hurkyl]

I started these last two running before I left for work today. U turn, take 2 is still running! However, AMAZING!!! seems to have broken down. I wonder if it's impossible for a launcher-type contraption to work indefinitely?

[sccook]

I started these last two running before I left for work today. U turn, take 2 is still running!

Since some days at work seem to last forever, this is probably close enough to inifinite for me!