I'm looking around for a step by step build guide for a motion sim. I have found one on instructables using the Joyrider PVC platform. Now in this guide they are using pneumatics to make the thing move i'm wanting something a bit more silent instead of having to use an air compressor. here is a link to the Pneumatic one
http://www.instructables.com/id/Arduino-Pneumatic-Flight-Simulator/
http://www.instructables.com/id/Arduino-Pneumatic-Flight-Simulator/