Hopper - Building Instructions

This is a project I've been working on lately. As its name says, it is a hopping robot moving around a room while avoiding objects.

It walks by rotating a frame, like a walker. Then, using its one foot it can turn around.

It is made from a single NXT kit. Building instructions are found here. (click)

Below is a video of the robot in action. I've also included some 3D animations of the robot.


Anonymous said…
You monsters! You've crippled the poor thing.
Anonymous said…
Reminds me of an old RCX version, doing line following:
Brickshelf folder

Laurens Valk said…
Yes, I had seen it before, nice design. I didn't look at it when building this one though, I couldn't find it.
Stupid of me to not look in your brickshelf folder :).
Mine would not be capable of following a line, not very fast at least.

Sorry, I had to, it didn't walk well with two legs. Just kidding :)

Anders Søborg said…
Excellent - great idea.
David Levy said…
I like the animation. It really reveals some of the design. I've been looking for some ideas centered around the turntable that my 5th graders can use for a special project.

It reminds me of my old granny tooling-around with her walker...but with 2 legs/feet in her case...and somewhat comparably faster in Hopper's case.

Great job mimicking my future.

Fay Rhodes said…
Thanks for sharing this, Laurens! It provides an answer to a particularly thorny problem I've been having with my next animal robot. Now, if you could just solve the problem of a realistic (and consistent) NXT snake!
Ed Mahony said…
Hi. Just stumbled across your blog. The robot looks great. Just been reading about the Honda Asimo recently. They are advancing pretty quickly here.
Laurens Valk said…
Thanks everybody.

Not sure what you use the turntable contruction for, but it might not work well under heavy load. I haven't tested that, though. It should work fine for projects like these and maybe a bit heavier.
About the animation, youtube really downsized the quality of it. If you are interested I can send you the original file.

Lol, you're not the first one who got that idea. In fact, it wasn't my intention to make it look like that when I built it. :)

A snake, that is a pretty interesting idea! I've seen several ones on youtube but they were not that realistic. I might look into it.

Unknown said…
Hi Laurens,

nice thingy. :-)
Reminds me of the NXT one-foot creeper (the Slug) I did some time ago.

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