Quote Originally Posted by Andrewg View Post
rather than lie on the floor winding up machine castors like these would hasten the pay back!

Ah, I've been there - brilliant machine feet, but a complete bugger when you've got a bench & mill weighing in at over 200kg and you're trying to get to the foot at the back. We need someone to design a wrench for the cog for these - my thumbs ain't what they used to be.

A_Camera - like your idea, but over complicated. Why not build a multi-purpose jack-plate (basically what you have... but you can place it under any machine to lift it)