[Lab] Model escalator...
darcy at inventorartist.com
Mon Sep 15 18:34:34 EDT 2014
Perhaps a chain with steps attached to links...
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On Mon, Sep 15, 2014 at 7:42 AM, greg atcheson <greg.atcheson at gmail.com>
> 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
>> 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,
>> 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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