Gripping Rack is a rack-and-pinion variation of Henry Segerman's
Gripping Gears. The pinion gear rolls over (or under) the rack gear while staying together. A mechanism with pins and grooves prevents the parts from coming apart. So the pinion gear can be rolled off only at the two ends of the rack. As usual, this is a gearing mechanism without a purpose, other than being interesting from a mechanical and mathematical point of view. Do you know any useful application?
Watch the
YouTube video.
Read at the
Shapeways Forum.
Read more at the
Non-Twisty Puzzles Forum.
Please order a 3D-printed do-it-yourself gear kit from Shapeways at this page (check with Oskar about assembly and dye), or
contact Oskar directly if you are interested in obtaining a fully colored and assembled sample of this gear toy.