Spirals with the router
Channel: Matthias Wandel
TIP: Right-click and select "Save link as.." to download video
Initializing link download.....
Izzy swan's video: http://youtu.be/ouI3HRsomn4
Granted, you may have to build a pantograph, but the pantograph is easier to build than Izzy's jig: http://youtu.be/vtm4u583YOQ
More about the pantograph: http://woodgears.ca/pantograph