I've always loved MishaT's Nautilus gears, but they didn't turn as smotth as i expected.
Original MishaT's version : http://www.thingiverse.com/thing:27233
Original maths : http://www.maplesoft.com/applications/view.aspx?SID=95483&view=html&L=G
So i integrated 608 Ball Bearings to make them run smoother. 3 versions of the gear are available : Normal, Tighter, Even Tighter, see which works best for you.
Nautilus_Connector_608_Bearing_29042017.stl | 492.7KB | |
Nautilus_Gear_608_Bearing_29042017.stl | 1.6MB | |
Nautilus_Gear_608_Bearing_Even_Tighter_02052017.stl | 1.6MB | |
Nautilus_Gear_608_Bearing_Tighter_01052017.stl | 1.6MB |