RCX Lego Biped Robot Walker DINO 5

[RobIAIS]

great idea! i had nearly the same - but i use touch sensors to dectect if the feets are on the ground...

[fbrmsgud96]

omg so profesional! nice robot dude

[Marsteintoppen]

Thanx, one of my first.

[alexfpc210592]

WOW! you're a genius, all i ever got to build was roverbot hehehe it's so sad RIS was taken out of the market... and it's sad that i lost many small pieces...

[yeyeee01]

hey where can i get the instructions to asemble this guy??

[Marsteintoppen]

There is no instructions fore this one. I only have some photos if that is of interest. The lower body is pretty basic and similar to many other biped robot walkers out there, and to that part there should exist instructions. The upper body is uniqe to this one and have no instructions. By looking closely you should be able to figure it out. If you got the NXT, I recommend to build my NXT version instead. It looks cooler and it is much stronger.

[marshallpeck]

Perfection and simplicity! Does it ever get out of sync?

[Marsteintoppen]

It happens it get out of sync, but that's becaus the rotation angle Sensor can't be trusted 100%. The programming works by counting seconds, and to make shure the overbody gets in position before the next step, the top engine spins a little extra as you can see in the clip. The timing was difficuld to find out, and it changes all the time, so the total walk program is only about two minutes before it stops. The feet has to be in a exact position when starting.

[marshallpeck]

Perhaps you can use a couple of touch sensors to keep timing. Might consider a larger model that can swing a pendulum with that rotation sensor for measuring balance.

[Marsteintoppen]

I tried to fit touch sensors when I buildt it back in 2001, but it became a bit to to bulky and heavy for the incredible week 43362 motor, so I tryed to make timing over a sertant period of time a priority. Two miutes of action was more enough to have some fun. This construction provide to much axial loads to the motor if used to long. I have broken two motors that got stuck on under axial loads.

[Marsteintoppen]

But I agree, a upgrade must be different. Check out my NXT version of the same model.

[DaGrimRpr]

Nice!

[SmilePhreak]

sweet