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| need a reciprocating mechanism |
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| RJSV:
I have a couple of greeting cards, specials with minor electronics, for Halloween 'monster cards', having blinking LED eyes in the special greeting card. Now, also the unit has a reciprocating mechanism, for producing 'eyeball' wiggles. The little mechanical box contains 10mm X 3mm motor, and a couple gears. I'm not sure if the little controller IC sends both directions polarity to the motor (IC is inside epoxy dot). The little gear box is 20mm by 20mm by 8mm thick. You'd have to check Hallmark Cards, and I will keep a look out, for that special Halloween card. |
| beanflying:
While the OP hasn't been back with some required info the little indoor R/C linear servos are about the easiest to incorporate into a design with minimal mechanical engineering or hacks needed. Costs on them are sub $10USD and all you need to drive them is a 4-6VDC supply and a 1-2mS pulse from anything from a 555 timer hack to a PWM out of an arduino. Some of the other screw options from AliX or evilbay are a bit more robust but you would need to do the drive electronics and position sensing too if you need accurate control. |
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