Sadly, the Robo-Sander isn’t a contestant on Robot Wars (which would be very cool), but it is an attachment for your drill press that helps you accurately produce curved parts from wood. Its sanding drum features a template guide system that works like a flush-trim router bit to trace your pattern piece.
It looks pretty easy to use: just adjust your drill press’ depth setting to hang the free-rotating guide wheel on the bottom of the sanding drum over your workpiece to ride on the pattern and sand away. A variable-speed ‘press is a plus for this application, but the manufacturer says a single-speed will work just fine.
With the Robo-Sander you can shape parts that are way too thick to attempt with a router, and there’s no tear out — even with super curvy shapes. Obviously this rig wouldn’t replace a good belt/disc sander, but it would make a great addition to them.
Oh yeah, it’s cheap, too. Street pricing starts at $12.