Application of artificial muscles in microrobot

[LuckyJakeTheHaloGuy]

this is cool, not a microrobot, micro is a scale of measurement, the step up from nano, this much bigger than micro, but cool nonetheless

[UjjijjU]

hurr? final application eh?

[nnnnnnnnnnnnnnnnn984]

hi

may i know where did u buy this wire from? what are the specifications?

thanks

[evolutionsdisaster]

Are you trying to contract and expand at the same time. Expanding the left wire and contracting the left wire by sending signals or is it that when you expand the left wire the right wire is contracting bcz of the pulling force.

I am asking as the flexinol can only expand only on electrical signals so hw r u able to contract it.

[peterkatuch]

The current (it also means heating) causes contraction of biometal. Elongation is done by external force, not current. You can use spring or weight for elongation. Or you can use another biometal, which during contraction elongates first biometal as you can see on video.

[scrapkilla321]

if you were to put the muscle wire in water would it still contract !!!!

[SleepyBoBos]

Have you got a website or something with the results? I don't want full tech specs etc I just think this is cool and would like to see a video of final results or something

[ashmodeus0]

awesome! I never knew about that material :)

[Tubuletastic]

before you did this demo, you didnt know it would work? would you just put it on a mini armiture of a person and get this party started already?

[preput]

so cool.

[bflk159]

very cool...I just purchase .008 inch flexinol (nitinol muscle wire) and the max compression of the material is 5% of the original length, while in your video the wire compresses way more than 5%.... I am thinking of changing materials after seeing your video and was wondering about the price, circuits set up and power source used to run the robot. thank you so much

[peterkatuch]

Biometal helix (BMX) has approximately 50% of contraction. It is not as strong as flexinol, but is strong enough for many applications.

An of course BMX is much more expensive. Circuit for driving is same as for flexinol. It is just a wire with specific resistance. You need to control the temperature by limiting the current and do not overheat it.

[Caelsus]

Is this a polypyrrole trilayer???

or what kind of material is this??

I hope your answer..

[peterkatuch]

This is a polyuretane with cca 75 shoreA.

[jevries]

Looks really cool. How long can you have the wires activated?

[peterkatuch]

It depends on current. You have to be careful when use higher current than specific. If you use current which do not overheat the wire, you can actuate non-stop. But reaction is a bit slower.

[jevries]

Thanks for your answer, appreciate it!

[scancool]

ver nice