gearbox
grabcad
lightweight gearbox with hollow axle for twin Contra rotating Propellors with individual propulsion for arguments > http://twincarver.wikkii.com/wiki/Drive_Train
Download Model from grabcad
With this file you will be able to print gearbox 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 gearbox.