Differential (closed, large)

thingiverse

**Update 2019-01-01:** * Updated models are now easier to assemble, with dimensions adjusted for less friction. * An assembly guide is available on YouTube. Hello, This is a compact model of a differential with a gear ratio of 1:3 (pinion to crown 13 to 39 teeth). The list of parts and quantities includes: * 01 Planets shaft connectors (half, x2) * 02 Planet shaft sleeves (x4) * 03 Planet shafts (x4) * 04 Planets (x4) * 05 Planet shaft shims 12x8x0.8 (x4) * 06 Carrier rings (x1) * 07 Carrier decks (x1) * 08 Shims 20x16x0.8 (x3) * 09 Suns (x2) * 10 Axle lefts (x1) * 12 Crowns (x1) * 13 Crown holders (x1) * 14 Shims 20x16x4.6 (x1) * 15 Axle rights (x1) * 16 Shims 28x16x0.8 (x1) * 18 Sides right (x1) * 19 Sides left (x1) * 20 Sides front (x1) * 21 Sides back (x1) * 22 Pinions (x1) * 23 Decks (x1) * 24 Drive Handles (x1) * 25 Hubs (x2) * 26 Rims (x2) * 27 Tires (x2) This model also requires bolts for connecting parts and Seeger rings to prevent axles from sliding: * 14 of 4x12mm socket head Allen bolts * 4 of 4x30mm socket head Allen bolts * 8 of 5x10mm hex flange bolts * 5 of 5x16mm hex flange bolts * 8 of 5x6mm grab screws * 3 of 16mm Seeger outer rings An assembly guide is available here: https://youtu.be/LTUGokwd5M0 **Note:** This is the first version, and assembled parts may be tight to move. I recommend using a pile for finishing holes and oil for lubricating axles before assembling. If you experience problems with printing "03 Planet shaft" (tilt before finish of printing), try adding brim (ex.5mm) or raft.