Remote control animatronic....fairy :)

....yes fairy.  This project came about when the ladies where I work decided that a fairy birthday party would be a nice thing to do.... Now I am a rufty tufty woodsman and so I refused point blank to run said parties, I was let off on the understanding that I made a fairy that would appear with the pull of a string or something similar, fair enough thought me. One of the ladies gave me a seven inch doll to play with.......

Step 1The design

Well pulling a string is not my thing so my thoughts turned to battery powered remote controlled animatronic fairy.

I found the perfect tree to hide her in and worked out she needed to move up and down diagonally.

 The first picture shows the basic mechanics:-

1. A single, geared motor drives it all
2. Crosshead between two slide rails moved up and down by...
3. toothed belt drive number one
4. The platform, where the fairy stands, is driven sideways by....
5. Lead screw and nut with a toothed pulley driven by...
6. Toothed belt number two which is tensioned by a strong spring.
7. Shows direction of travel for the fairy.
8. Title says it all, I called her Nuff, she is a fairy that makes her  Fairy Nuff!

Various microswitches, relays and a wireless remote get everything moving and stopping in the right places at the right time.
The fairy wings are UV reactive and there are flashing UV lights (controlled by a pair of 555 timer circuits) to light her at night.

Next two pictures show circuit diagram for motor switches and relays and a circuit diagram of the light flasher circuit.

Step 2The bits

Power is supplied by plug in battery packs used in cordless drills as there are always a few charged sets knocking around in the office.
there is an extended aerial attached to the tree to ensure good communication with the wireless remote, the socket to connect it up can be seen in the pictures.