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Custom made Biped

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Novice ( offline )
Posts: 59
Posted: 2010-09-27 14:39 
 Post subject: Re: Custom made Biped
Ok, just got my servo's this morning ! :mrgreen:



As I was supposing, they are not really "Standard", they are a little taller than a standard servo.



I've assembled all the hardware I've already made and programmed the basic stance of the leg.





Now, I just have to make all the remaining brackets and pursue the head design. (Don't know yet which battery I will use)


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Guru ( offline )
Posts: 3298
Posted: 2010-09-27 15:12 
 Post subject: Re: Custom made Biped
looking really nice. the colour is nice and sharp. great finish too. well done.

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Last edited by Fish on 2010-09-27 15:38, edited 1 time in total.
Removed quoted images from the previous post. No reason for that.


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Guru ( offline )
Posts: 3580
Posted: 2010-10-01 09:50 
 Post subject: Re: Custom made Biped
bravach wrote:
Ok, just got my servo's this morning ! :mrgreen:


What is the strength of those servos?

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Mike

The robotics nut.


Last edited by Snailkeeper on 2010-10-04 10:37, edited 1 time in total.
Removed huge quote - please do not quote images unless needed.


Novice ( offline )
Posts: 59
Posted: 2010-10-01 12:51 
 Post subject: Re: Custom made Biped
Their torque is rated at 17 kg.cm (6V).
Also, I've done some current measurements and they draw only 250 mA when under load.


Novice ( offline )
Posts: 59
Posted: 2010-10-02 10:43 
 Post subject: Re: Custom made Biped
Ok, I've finished the left leg two days ago but wasn't satisfied of the servo brackets, they are too light for me.



So, I got to a local DIY store where thay had some nice extruded profile. I took one U-shaped to make some tests and here is the result :



It's really better looking and tougher than the old ones.


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Guru ( offline )
Posts: 4104
Posted: 2010-10-02 14:46 
 Post subject: Re: Custom made Biped
What's the thickness, aluminum type?

Alan KM6VV

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Novice ( offline )
Posts: 59
Posted: 2010-10-03 05:30 
 Post subject: Re: Custom made Biped
Thickness is 2 mm. I don't know the alloy type, but it's really harder than the previous one (also, it's already anodized).
My carbides drills and diamond blades had a hard time ! :lol:

Dimensions of the profile is 30*30*30 mm, so I just cut to 24*30*24. Also, it costs almost nothing, around 0.50 euro per bracket (without the price of replacing the drills and saw blades which will wear with time).


EDIT : Just made the body :



Clear 3mm Lexan sheet


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Guru ( offline )
Posts: 3298
Posted: 2010-10-03 10:54 
 Post subject: Re: Custom made Biped
looking really nice. what have you used to assemble the clear lexan panels. hot glue? conventional way is to cut out notches but yours looks just a neat.

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Jonny Poole,
Freelance Concept Art & Animatronics, 3D Art and 3D Modelling, as well as Physical Modelling, Mechanical design, and illustration.
http://www.innerbreed.co.uk
Create, Innovate, Inspire.


Novice ( offline )
Posts: 59
Posted: 2010-10-03 13:42 
 Post subject: Re: Custom made Biped
I've used the conventional way. There are 4 notches in each side panel and the horizontal ones just fit in them.


Rookie ( offline )
Posts: 29
Posted: 2010-10-03 14:48 
 Post subject: Re: Custom made Biped
WOW! looks great! Can't wait to see it walking ^_^
Btw, I like the color!


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Guru ( offline )
Posts: 3580
Posted: 2010-10-04 11:36 
 Post subject: Re: Custom made Biped
looks great, keep up the good work!

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Mike

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Novice ( offline )
Posts: 59
Posted: 2010-10-05 05:15 
 Post subject: Re: Custom made Biped




It begins to look really like my CAD drawings. :mrgreen:


Rookie ( offline )
Posts: 14
Posted: 2010-10-05 05:43 
 Post subject: Re: Custom made Biped
It seems to be missing a leg :wink:
Great work.


Novice ( offline )
Posts: 59
Posted: 2010-10-05 13:46 
 Post subject: Re: Custom made Biped
No, I just invented a new kind of cloak of invisibility !!! :lol:


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Guru ( offline )
Posts: 3580
Posted: 2010-10-08 12:16 
 Post subject: Re: Custom made Biped
bravach wrote:
No, I just invented a new kind of cloak of invisibility !!! :lol:


The clear body makes it hard to see the design. I see one bright red leg and then a translucent body. :lol:

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Mike

The robotics nut.


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