[Lab] Model escalator...
greg.atcheson at gmail.com
Mon Sep 15 07:42:15 EDT 2014
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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