How the Prosthesis Mech Works!

We get a demo of Prothesis, the exoskeleton mech suit designed by Jonathan Tippett and his team. This 8000 pound mech is directly controlled by Jonathan using his arms and legs, without any stabilizing gimbals or gyros. Jonathan explains how he has to essentially relearn to crawl in the Prosthesis, and we see and hear this massive machine lumber across a parking lot.

Shot by Gunther Kirsch and edited by Norman Chan

Subscribe for more videos!
Follow us on Twitter:
Get updates on Facebook:

Tested is:
Adam Savage
Norman Chan
Simone Giertz
Joey Fameli
Kishore Hari
Sean Charlesworth
Jeremy Williams
Ariel Waldman
Kayte Sabicer
Bill Doran
Gunther Kirsch
Ryan Kiser
Kristen Lomasney

Set design by Danica Johnson

Thanks for watching!



  1. Where are the guns on it? I have good vision, actually 20/20 but didn’t see them. I’m not trying to tell you what to do but I’d strap some shit on there. Might be great for surgical procedures for cancers like Antifa, Democrats, etc.

  2. VERY COOL!!!… but the guy who designed it said he does not know how to walk more than two steps. If he does he is amazed. 5:53 Yet when Norm asked him if he is going to improve the engineering, he believes it works as designed. 6:17 I hope that does not hinder his progress. I guess trial and error with lots of practice is one way to learn how to operate something you designed.

  3. all that money time and effort put into a stupid and pointless design that has fatal flaws they cant engineer out of it… should have spent more time in the concept phase

  4. So if he is still learning how to operate the mac after hundreds of hours how should that become an racing mac? Its a Incredible peace of engineering but for racing it sounds way to complicated. Or did i missunderstood something?

  5. I'm guessing he wants it to move like a gorilla, but it' not built like a gorilla. Want's manual control, but needs computer assisted motion control to coordinate quadrupedal movement. Head over to Boston Dynamics channel to see top notch motion control. We are human, walking with four legs is not our strong side.

  6. Just….wonder why they dont leave the movement to the legs only.
    I'm not saying dynamically stablize on two legs, I'm saying he should probably mux it so only two legs are active at a time? This four legged beast….looks really clunky..

  7. Cool apparatus but.. why are all big bots so unbearable slow? Man my first prio of making any robot would be descent speed. Then again i never made a robot, so i must be the guy that should shut up, and that is what im going to do now, but still.. imagine this thing but with moderate to descent speed.. man it would be a tremendous scary beast. Ok i am done now. Sorry, it is still a very cool project!!

  8. Oh, thats so cool! I wish I had the money to waste on something like that.

    I would probably call it Humanly Operated Riding System… Extreme! Or short H.O.R.S.E.

    I don't understand how humanity did not figure out a four legged, fast, efficient, intelligent transport matter… with touch and voice commands, eco friendly fuel and a diverse range of customizations… and easy to reproduce… and oh wait.. didn't some guy tame that animal lately? what's it called again? Horse?

  9. The day when I see movement that looks fluid and organic I will be impressed. This stuff looks like a bigger version of a toy and I feel like something that looks and feels like something from nature would be better.

  10. Why not go to an open private field and practice for a month or two? don't get why you would take your time building such a fantastic machine and then rush into putting on shows?

  11. And cue the hate from desk engineers, or comparing it to multi billion dollar firms. Lets not forget the Wright brothers were not the BIG boys, they did not have government funding they were the under dogs the non engineers. Cant remember who did. James Watt was not the lead engineer. Tesla was laughed at. He specifically sates 'Lets see what we can do' Computer programming can only get you so far. People forget that everything you use has gone through decades of prototypes, its just we don't get to see the ones they learned from. Investment is in the person not instant return. Any idiot can make money, it takes a real person to make a living from what they love


Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.