270
thingiverse
Customized version of http://www.thingiverse.com/thing:47528 Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=47528 Instructions Using the following options: track_length is set to 270 units. track_option is selected as option number 2
Download Model from thingiverse
With this file you will be able to print 270 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 270.