Atom
thingiverse
This is a nice atom (necklace). Printed on a Makerbot rep2. The red parts are a bit taller so you can stop at 85% and change filament for the red finish. As always, the design is inspired by the first page of google results. p.s. You might want to scale it up a bit before printing. If you want to help a brother out check http://facebook.com/free3dcph Enjoy
Download Model from thingiverse
With this file you will be able to print Atom with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Atom.