Yeah that's a cool idea with the servo! I saw a big one linked on Lazy Toads website:

http://www.vantec.com/ssps105.htm

I was trying to get to Barnsley at the end of June but baby number 2 is due 2nd July so not sure if that will happen or not lol.

The next one oop norf is Doncaster later in the year I think so could give it a run out then

Thank you for all the nice comments! I started out with La Machine in mind and the robot just sort of ended up like this the more I cut and drilled haha. Really really want to build a Torpedo 850 drive train but don't have a drill press just yet to get the accuracy for the Mod 1.0 stuff.