Author Topic: Deciding on material for humanoid  (Read 2627 times)

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Offline offyTopic starter

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Deciding on material for humanoid
« on: March 31, 2009, 10:30:36 AM »
I have been thinking what material the body should be on my humanoid. I want something easy to work with, cheap (Less than $50 for all of the materials) and I can make the body very easy. I attached a picture of my CAD, so please help me.

I was thinking Balsa Wood or Styrofoam.

Offline galannthegreat

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Re: Deciding on material for humanoid
« Reply #1 on: March 31, 2009, 11:24:39 AM »
I'd suggest somesort of metal sub frame (servo mounts/joints), probably aluminum or some other strong light metal, and plastic for other non-structural parts.
Kurt

Offline offyTopic starter

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Re: Deciding on material for humanoid
« Reply #2 on: March 31, 2009, 11:29:36 AM »
The head is plastic.

I want something easy to mold and make into a box. I don't have a shop to go to, but I have a drill and a jigsaw(and other tools that almost everyone has)

Offline superchiku

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Re: Deciding on material for humanoid
« Reply #3 on: March 31, 2009, 11:59:06 AM »
 a real humanoid  ??? ...or only the shell is the humanoid and all other functions are same as an ordinary robot...
JAYDEEP ...

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Offline offyTopic starter

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Re: Deciding on material for humanoid
« Reply #4 on: March 31, 2009, 12:01:13 PM »
only the shell I think... it is going to be like the MiniEric bot.

Offline superchiku

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Re: Deciding on material for humanoid
« Reply #5 on: March 31, 2009, 12:08:05 PM »
umm .. . . . . havent seen th mini eric robot...but i guess u could really make it more like a humanoid if u look at the butler robot tutorial...
JAYDEEP ...

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Offline offyTopic starter

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Re: Deciding on material for humanoid
« Reply #6 on: March 31, 2009, 12:28:22 PM »
I don't know what you mean by humanoid and normal robot.

Offline superchiku

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Re: Deciding on material for humanoid
« Reply #7 on: March 31, 2009, 12:32:20 PM »
lol...a humanoid is a humanoid...a norma robot is not a humanoid...its obvious if u knw the word humanoid ...u must knw the difference
JAYDEEP ...

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Offline offyTopic starter

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Re: Deciding on material for humanoid
« Reply #8 on: March 31, 2009, 12:39:02 PM »
humanoid can mean many things, a humanoid can be a robot that can walk, that can look like a human and do nothing. Everyones idea for a humanoid is different.

My robot is going to have 2 wheels (not legs), arms, video, unltrasound sensors, and IR Range finder. It will be able to go around, pick up things, maybe have voice commands one day and do simple tasks.

Offline superchiku

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Re: Deciding on material for humanoid
« Reply #9 on: March 31, 2009, 12:41:58 PM »
keep no wheels...it wont be a humanoid then....atleast adding voice commands and some vision algos...will make it more like a huamanoid..
JAYDEEP ...

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Offline Razor Concepts

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Re: Deciding on material for humanoid
« Reply #10 on: March 31, 2009, 03:11:11 PM »
I would advise against metal on something like this... it's not like it's going to be going through any tough conditions or something. Use wood at first for a mock-up, and later replace the wood with plastic (I like sintra).

Or learn how to fiberglass, then you could get some nice 3d shapes with fiberglassing.

Offline galannthegreat

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Re: Deciding on material for humanoid
« Reply #11 on: March 31, 2009, 03:17:15 PM »
Take a look at how some of the Humanoids on the market operate look at how they mount the components and take ideas out of bits and pieces you like.
Kurt

Offline Soeren

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Re: Deciding on material for humanoid
« Reply #12 on: March 31, 2009, 07:20:39 PM »
lol...a humanoid is a humanoid...a norma robot is not a humanoid...its obvious if u knw the word humanoid ...u must knw the difference
If you did, I suppose you would have told, instead of just babbling in shorthand ;D

For those needing a bit more precision in the definition...
Humanoid simply means human-like, a being having human characteristics or form - like a regular robot build like a human, i.e. with a body, arms, legs and (usually) a head.
That said, a robot like Wall-E does have humanoid features (like emotions, which, in storytelling and animation can make any object humanoid)

The words "mandroid" and "android" have almost the same meaning, but is out of the SciFi literature and they allways refer to animated creatures, usually with a close resemblance to a human with eg. synthetic skin, eyes that looks real, facial expressions etc., whereas humanoid in reality could be used in a sentence like "that pile of bricks looks almost humanoid", but that is a bit of a stretch from "our" understanding of the word.
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 superchiku

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Re: Deciding on material for humanoid
« Reply #13 on: April 01, 2009, 08:56:24 AM »
rofl ... soeren offcurz  i knew...was too bored and lazy  to elaborate it by writing it down...
JAYDEEP ...

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Offline airman00

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Re: Deciding on material for humanoid
« Reply #14 on: April 01, 2009, 09:46:12 AM »
rofl ... soeren offcurz  i knew...was too bored and lazy  to elaborate it by writing it down...
I don't really mean this as a personal attack or anything but...
please try to write in full sentences and use spell check before replying. And also, why not just reply with the answer quickly? It takes just as long to say what a humanoid is as it takes to say "its obvious if u knw the word humanoid ...u must knw the difference"

Again, I'm not trying to insult, just want to keep the forum at top quality.


On topic: I would suggest Sintra - its light and easy to work with
Check out the Roboduino, Arduino-compatible board!


Link: http://curiousinventor.com/kits/roboduino

www.Narobo.com

Offline superchiku

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Re: Deciding on material for humanoid
« Reply #15 on: April 01, 2009, 10:11:53 AM »
airman.... spelling is ok...i just type very fast and my keyboard is ... like a little worn out so sometimes my pressing doesnt register....

abt the humanoid thing ...i think it would be childish to continue discussion why i didnt write it...
JAYDEEP ...

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Offline jamort

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Re: Deciding on material for humanoid
« Reply #16 on: April 03, 2009, 10:19:37 PM »
yeah on topic sintra but going off topic a little bit it sounds as if your trying to build something similar to what cmu built a humanoid called quasy.. the problem with doing something like this I'm not sure what your complete plans are but I know it took 10 graduates a semester to develop it now your probably not going to build it as complex as quasy is but what I'm saying is that its probably going to cause a couple of mistakes along the way so that being said good luck...
my english teacher once said, "dont talk about what you dont know in public...."

so I replied the truth, " Exactly why I dont ever talk about English."

Offline Razor Concepts

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Re: Deciding on material for humanoid
« Reply #17 on: April 03, 2009, 10:43:06 PM »
Well IMO I think it can work out, it wont be as great as one CMU did but its a good learning experience.

Offline jamort

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Re: Deciding on material for humanoid
« Reply #18 on: April 04, 2009, 09:27:18 PM »
yeah but in reality what hes building is a mobile base that does stuff iots not really a humanoid(correct me if I'm wrong but humanoid means mobile on two legs... and the calculations for that are pretty severe IF the feet stain on postion you could have swivel feet so where when it walked it would turn the motor and the foot would stick to the ground sliding and keep doing that but then again to me its kind of a cheat...
my english teacher once said, "dont talk about what you dont know in public...."

so I replied the truth, " Exactly why I dont ever talk about English."

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Re: Deciding on material for humanoid
« Reply #19 on: April 10, 2009, 12:57:33 AM »
All of the humanoids you can buy use bent aluminum. Its bent to increase strength yet still keep the weight really low.

The only way you'll know the best material is to:
- calculate it
- trial and error a dozen times
- run experiments
- imitate a biped already built

Pick the one you want ;D

 


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