[Lab] Model escalator...

[Darcy Whyte]

Perhaps a chain with steps attached to links...



--
Darcy Whyte

Art+ inventorArtist.com <http://inventorartist.com/> | Aviation
rubber-power.com
Contact: darcy at inventorArtist.com | 613-563-3634 by appointment (no text)


On Mon, Sep 15, 2014 at 7:42 AM, greg atcheson <greg.atcheson at gmail.com>
wrote:

> You could always use a fake escalator. There are toys that use two pairs
> of stairs, one rotating eccentric from center. Hard to describe... Or use a
> conveyor with a stair silhouette stuck on the side!
> On Sep 14, 2014 9:09 PM, "Adrian Jones" <adrian at woodsgood.ca> wrote:
>
>> Anyone out there in 'makerland' got any ideas for me.
>> For an art project, my partner, Lise, needs me to build a pair of small
>> model escalators that run against a projected backdrop.
>> Each escalator will have a small figurine, one ascending while the other
>> descends.
>> Rough estimates are that each elevator should be about 18-20" long with a
>> 6-8" elevation. For each I've been thinking about using a stepper motor
>> driving a loop of toothed belt. The belt has one or more small triangular
>> balsa steps glued to it. The stepper will move in one direction (ascend),
>> stop and then reverse direction (descend) to end up at the same point,
>> while
>> the other does the opposite. This cycle then repeats.
>>
>>
>>           /|    /|    /|
>>          / |   / |   / |   <-->
>>    ___==/==+==/==+==/==+===============___
>>   /   \                               /   \\
>>  |  A  |                             |  B  ||
>>   \___/                               \___//
>>      ====================================
>>
>>
>> Imagine pulley A elevated so that hypotenuse of triangur 'step' is
>> horizontal... Get it?
>>
>> Thoughts, suggestions...
>>
>>
>> Many thanks,
>>
>> .... Adrian
>>
>>
>>
>>
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>
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