Yes, even this design can be a FREE download once I am fully funded for my RoboGuts™ S.T.E.A.M. Education Program Kits;

IF each viewer donates just $5 I'll be funded almost overnight and then all my designs become FREE downloads!  

The fastest and cheapest way to get all my .STL files FREE is to donate $5 to help fund school materials ... once I have $3,500 I'll convert all these files to FREE downloads.   https://www.gofundme.com/roboguts-kits-lessons

This is a wheel kit to allow the CupCake MakerBot to build a wheel larger than the standard 100mm x 100mm MakerBot platform allows. As you can see in the more assembled image that it is easy to make paper/card wheel hubs with different "faces" on them to alter the look of the wheels ... Christmas, Halloween etc... but the faces can also be cut into thirds/fourths to MakerBot them as part of the wheel building too. This is another of many entries to the makezine.com/go/makerbot contest ... blog.makezine.com/archive/2010/04/makerbot_giveaway.html I really need a job ... but I can design a custom part if you like on contract. Instructions MakerBot each piece, then lightly sand mating surfaces to fit them together snugly. You may want to glue the wheel parts together for added strength, but that's probably not necessary. If you successfully make these with a 3D printer please send me the build-files and machine type so it can be uploaded here for others to use.