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In lugnet.robotics, Eric Sophie wrote:
> In lugnet.robotics, Stefan Naepflin wrote:
> > hello all
> >
> > After a long building time (uncounted houres during one and a half year) I
> > finally assembled my Johnny Five robot the first time.
>
> This is wonderful! Thank you for building the Famous Robot!
Thanks for your feedback. I'm glad to hear this from you..
>
> One year and a half!? I respect your dedication!
>
> > This was a great feeling looking to the robot and I will share this with you.I
> > found a lot of inspiration on Lugnet and Bricklink.
>
> That is a great feeling. Now we can see your completed work and imagine the time
> and effort it must have taken you. Congradulations!
>
> > J5 is made of 8 modules and his total weight is about 13 kg. I think its a large
> > style model :-) It uses a number of motors and gears:
> >
> > - 5 in each arm (shoulder, upper arm, ellbow, wrist, hand)
> > - 3 for the head (turn, two pistons)
> > - 2 for the treads
> > - 1 for the upper body
>
> Yes Modules! Great Construction and interesting solutions. Nice parts!
>
> > It was my intension to build J5 as close as possible to the "real" J5
> > (http://www.johnny-five.com).
> >
> > My special thank is going to Eric Sophie and Rosco. Eric's JAMA gave me the
> > "kick" to start buildung J5 using LEGO and learnd me a lot of construction
> > technics.
>
> Your very welcome, and thank you. Tell us, what was your experience in learning
> to build the hands? Very nice how you learned from the pictures and using the
> parts to create the movement.
First I built the hands as a copy from the Jama pics. So I could easily see and
understand how the really works. They bending mechanism was cool but for johnnys
hand it was not enough integrated. During several cycles of desining, trying I
found a way to integrate the bending mechanism.
Maybe I'll try an "extended" version using a "self adapting" mechanism..
>
> Also, what are your thoughts about the center section? The torso has many
> techniques to compose the structure. What was it like for you to build this
> section?
I knew, this section has to be the stronges of the whole model. I tryed to build
a strong center construction and using a kind of "shelf" to construct the outer
shape.
To keep the shoulder section always in horizintal position the section hast to
be a parallelogram.
>
> > And Rosco showed me the idea for the treads with his MOC CC2800.
> >
> > J5 is not almost finished now. There are a ot of little things waiting to be set
> > up right. I also have to wire the electrics and learn to programm RCX.
>
> They treads area nice design, and yes smaller width (2x) will roll better.
> (as already mentioned)
I think I have to order about 100 plates 2 x 12 from bricklink.. :-) because
treads are 125 studs long, each.
>
> > I also have to re-construct the joint for the upper body, It is to weak to hold
> > the whole weight of the body, arms and head.
>
> Can I help? What kind of set up are you using? I looked at the pictures.
> I know of a few ways that might help.
Instead of actuating the rotation point I think about to build a strong
"electric piston". The pisten will then be connected diagonally withn the torso
like this:
HHHHH
I
o----o
I\ I
I \ I
I \ I
X----o
B
B
B
If the piston will change its length, the parallelogram will move. At the point
"X" there will be the connection to the lower body ("B").
So the challange is to construct a compact but (very) strong elecric piston..
At the moment I don't see an other way.. (this is like they did it also in the
real J5 construction)
> e
>
>
> > The pics are located on brickshelf
> > http://www.brickshelf.com/cgi-bin/gallery.cgi?f=72836
> >
> >
> > (hope my english is not to bad..)
> >
> >
> > greetings from switzerland
> >
> > Steven
>
> Great job! Thank you!
>
> Eric Sophie
Steven
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Message is in Reply To:
 | | Re: Johnny five IS alive - first MOC
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| (...) This is wonderful! Thank you for building the Famous Robot! One year and a half!? I respect your dedication! (...) That is a great feeling. Now we can see your completed work and imagine the time and effort it must have taken you. (...) (22 years ago, 24-Jan-05, to lugnet.robotics, lugnet.build.mecha)
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