Another gearbox project is designed for 775 motors. This gearbox has a gear ratio of 1:15 and I am not sure what is maximum load but I know, it can lift up 25kg car wheel whit a tier for sure. This gearbox came out extremely well and I am really happy whit the results. And 3D printed also impress me with how strong they can be. 3D printing is the totally right technology to make gears and other complex mechanical systems.
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MY PATREON PAGE:   / letsprintyt  
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I really like to use 3D printed gears in my projects because they are soo strong and fun to make. In the future I make some insane torque gearbox using planetary gears, work is in progress already. I design my projects in Fusion 360 if u are interested.

775 DC motor: https://www.banggood.com/custlink/vKm...
Bearings: https://ali.ski/y1YkQ

The body is printed in PLA but the gears are ABS.

Comment down below what u think about that gearbox design and let me know what u wanna see next.

Video for 4 ways how to connect gear to rotating shaft:    • BEST Ways to Connect Your 3D Printed ...  
Free STL files for gearbox body and gears: https://cults3d.com/en/3d-model/tool/...

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Instagram:   / letsprintyoutube