So I have no idea what the hell a linear actuator is, but is commonly used in other lifting robots, so I did some research and found a website that sold them.

http://www.gimsonrobotics.co.uk/GLA-..._actuator.html

If anyone has had any previous experience with these, please tell me how good they are, how much can they lift and if it is possible to fit 3 in my robot.

If anyone also has any suggestions for any interchangeable weapons you would like to see, please reply.

Thanks for the support
Many thanks
Doodle