TIA
The coffee table legs did come from using the duplicator. The hard part
is finding the plate that the router attaches to with the steel rod. The
plate travels back and forth on the stee rod. The duplicator was made with
AutoCad but could be made with pencil and paper. The pivot point is were the
rod attaches to the router plate then it's just line projection from there.
The 1/4" steel pin attaches to the front of the router plate and the
router bit is a straight 1/4" router bit. The pin follows the sheet metal
pattern.
Hope this helps.

Dave