Author Topic: Connecting wire to the rotating leg  (Read 1504 times)

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Offline salamaTopic starter

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Connecting wire to the rotating leg
« on: November 10, 2011, 12:36:44 AM »
I'm now starting to design centipede robot. Something pretty much like this:
ZineDyn - Centipede Inspired Robot from KAIST

I'm going to have pressure sensors on each cylindrical metal leg. But my problem is how to connect the wires, because the leg are rotating same direction all the time. So directly just connecting would get the wire cut at some point or jam the leg. Any ideas how to overcome this?

Offline Soeren

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Re: Connecting wire to the rotating leg
« Reply #1 on: November 10, 2011, 09:36:27 AM »
Hi,

That would really scare the daylight out of my GF, but does it only go straight ahead?

I'm going to have pressure sensors on each cylindrical metal leg. But my problem is how to connect the wires, because the leg are rotating same direction all the time. So directly just connecting would get the wire cut at some point or jam the leg. Any ideas how to overcome this?

Slip rings
A jack plug and socket may be used as slip rings, but will not be nearly a strong as real slip rings.

Alternatively, you could measure the force where each leg is attached, then no wires need to twist.
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline salamaTopic starter

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Re: Connecting wire to the rotating leg
« Reply #2 on: November 10, 2011, 10:43:06 PM »
Yea I'm planning to make it only forward, real centipedes also go only forward!

I have been thinking the possibility of measuring straight, but probably going with the slip ring. Thank you for your post!

Offline Soeren

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Re: Connecting wire to the rotating leg
« Reply #3 on: November 10, 2011, 11:12:17 PM »
Hi,

Yea I'm planning to make it only forward, real centipedes also go only forward!
Oh well, I meant straight ahead as opposed to left/right  - seems a little limited if it cannot go further than the length of you largest room.


I have been thinking the possibility of measuring straight, but probably going with the slip ring. Thank you for your post!
You might wanna check the price on slip rings before you write off other methods, they're a tad expensive.
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline salamaTopic starter

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Re: Connecting wire to the rotating leg
« Reply #4 on: November 21, 2011, 05:54:29 AM »
After all decided not use slip ring. I will do piston like legs. Think this is the easiest and cheapest solution.

First I will try to make it only forward. Afterward might start thinking of turning right and left.

Offline salamaTopic starter

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Re: Connecting wire to the rotating leg
« Reply #5 on: June 18, 2012, 11:20:47 PM »

This is how it finally turned out. Still quite bit to do thou... TY for the help!

Offline Gertlex

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Re: Connecting wire to the rotating leg
« Reply #6 on: June 19, 2012, 05:29:22 PM »
Nice work, and thanks for sharing the pic! :)
I

 


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