I'm trying to get 150 Nm ( 110 ft.lb ) of torque out of a 3D printed gearbox! why? well watch and find out! This gearbox design is based on Gabrael Levine's Open Torque actuator: https://hackaday.io/project/159404-opentorque-actuator
*My Mistake* the formula for the gear ratio is completely wrong! The outer ring gears 63 teeth not 72 teeth. The formula is 1 + R/S = 1 + 63/9 = 8:1 reduction.
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00:00 Intro/Design
01:26 Planetary Gears
02:52 Project Idea
05:35 Inside the Gearbox
07:37 Test Device
11:30 Testing & Breaking..
16:16 Testing FDM Gears
21:07 Testing SLS Gears
23:25 Testing Metal Gears
27:06 Test Device V2
28:32 Output Rebuild
31:00 Transparent Gearbox!
34:30 Big Weights!
36:35 Weight Test 1
37:36 Weight Test 2
38:40 Weight Test 3
40:00 Weight Test 4
40:56 Weight Test 5
43:13 Conclusion