Now I realize some things I failed to say ...... Yes I would like to make this into a FLOSS product. Yes , I think magnets are the way to go for holding force. Yes, I expect users to unplug the tool while under power ( I can't control= what users do ) It would be great if the extension cord is "sucked" onto the tool connector= and held with great force. It would be great if this force could be "turned off" easily to allow disc= onnection. Any advice is welcomed. Best 99guspuppet --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .