Martin, You said "Can defo help with the motor controller(s) and you're right to leave that task to someone who knows. We tried (and spectacularly failed) on the robot and eventually struck a deal with a good friend of mine who gave us the design to his power stage and we ran 350A switching at 24v into perm magnet motors and the controllers didn't even get warm." Can you be more specific? We are investigating the motor controller question and could use recommendations or advice you have. Do you have a diagram of the circuit you used? Bob Brandys [Non-text portions of this message have been removed] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/DMCForum/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/DMCForum/join (Yahoo! ID required) <*> To change settings via email: mailto:DMCForum-digest@xxxxxxxxxxxxxxx mailto:DMCForum-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/