Buy some 24" x 24" of coroplast sheets from www.harborsales.net and get to work with them. Buy a cheap 25-40cc motor with 4 standard servos, 3 12" pushrods, and 1 6" pushrod.

Follow the picture above for building instructions. I will highly recommened buying an OS 25FX as they are QUALITY motors and actually much more worth it in the end.


Steven