Subject:
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Re: Animatronics anyone?
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 16 Apr 2001 17:07:52 GMT
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Viewed:
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728 times
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"Steve Baker" <lego-robotics@crynwr.com> wrote in message
news:3AD91A97.C941EF2C@airmail.net...
> I'm looking into the possiblity of building an animatronic version of • Tux - the Linux
> Penguin.
This is an *insanely* cute idea. I love it!
> Does anyone have any experience of this kind of thing that they could
share?
I supose the only thing I could suggest here is making your mechanism
flexible, and allow it to "Fail". I mean to say... if you install some
"springiness" between the gear drive and the "beam" installed in the
particular limb to actuate it, you can prevent any damage to your mechanism
(thus increasing reliability) by allowing the mechanism to absorb for any
overdriving (the fabric might be resistant), or even allow a bit of
interactivity between anyone watching/touching Tux and the drive.
> Especially the practical issues of retaining enough 'stuffing' material to • keep the
> shape right - yet not clogging up the mechanisms.
This could be a bit difficult, but if you build the frame/mechanisms, and
cover the mechanisms with plates (ensuring there is no exposed gearing) you
should be ok. The new gearmotors require a minimal of external gear
reduction (in fact, if you put a worm on the gearmotor shaft, and ran that
on a 24-tooth gear, that might be an optimal movement speed... and require
very little space!). Perhaps you could put the entire framework inside of a
plastic bag (or plastic bags), which might ensure that the fluff doesn't
interfere at all.
> *someone* must have done this before...right?
I'm afraid that I havn't... but I'm very interested in your project, and
wish you the best of luck!
Iain
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Message has 1 Reply:
 | | Re: Animatronics anyone?
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| (...) Yes - isn't it just! (...) Hmmmm - yes - I've seen that in toys like Furbie - every movement has some kind of bendable structure or slipping clutch between the drive system and the exposed parts. I guess that prevents small children from being (...) (24 years ago, 16-Apr-01, to lugnet.robotics)
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Message is in Reply To:
| | Animatronics anyone?
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| I'm looking into the possiblity of building an animatronic version of Tux - the Linux Penguin. I'm planning to get one of those cuddly Tux toys and removing the stuffing - then building a Lego armature inside it to make his head turn a little, (...) (24 years ago, 15-Apr-01, to lugnet.robotics)
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