Dear ecat

Thank you for your previous contribution with the link to slides and ballscrews, but most of all thank you for getting the ball rolling.

I have to start by saying much of the above sailed clean over my head, but if your initial cost estimates are realistic you have confirmed my suspitions that a suitable controller need not cost a fortune. I wish I could contribute technically but I can't, however I can help with organising such a project and would be prepared to fund a prototype or two to prove the system, after which those in the team could progress however they wish.

Perhaps when you have a moment you could list the other difficult areas so that members with relevant experience may be enthused enough to join in.

Geoff Vaizey