These are involute herringbone pattern gears for Wade's Most Excellent Extruder. The gears that came in my Printrbot Plus kit were warped and misshapen. Laser-sintered nylon is a very precise way to make objects, why not my extruder gears?

See the picture with the black and the white gears:
The Black gear came with my Printrbot Plus kit. The STL file shows a diameter of 63.78 mm. The gear that was printed by a Printrbot in my kit measures 61.25 (averaged 8 measurements) The white gear was printed by Shapeways in Laser-sintered nylon and averages 63.25 mm

If you want a little Headhunter - Gothic - Cannibal - Biker vibe on your 3D Printer, check out the Skulltruder!

Dimensions

IN: 2.865 w x 3.268 d x 0.827 h
CM: 7.278 w x 8.3 d x 2.1 h
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This is a great use of Shapeways, I just featured it on the Shapeways blog. http://www.shapeways.com/blog/archives/1970-Need-to-Repair-Your-3D-Printer-Use-Shapeways-to-3D-Print-the-Replacement-Parts..html
March 15, 2013, 2:34 pm
 
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