[TriEmbed] Need a simple actuator

[Bothari]

Group,

I'm interested in learning more about hardware.  We use servos to move
things in a circle, but what about linearly?  I'd like to make a hopper
that bounces instead of rolls.  Googling shows electronic door locks are
about what I'm thinking of, at 10 times the price.

Is there something else that is inexpensive, but electronically activated
for a hopping motion?

Thx,
Joe
-- 
"There are only two industries that refer to their customers as ‘users’." -
Edward Tufte
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