Hi to everyone on X-Sim
I'm building a 4DOF motion platform from my own design.
My personal history/experience with this kind of thing listed below:
7 years as an avionics technician, working on army helicopters
6 years as a consulting mechanical engineer
3 years designing and developing unmanned aerial vehicles
Designed and built a 3-axis CNC machine for the workshop
Seeing this community (and all of the progress that has been accomplished) is a really wonderful thing. Good work guys.
Best of luck with all of your projects

Sincerest regards,
DoctorD