How I Make Custom Motorcycle Sprockets At Home For Any Chain | CAD to CNC

Ever struggled to find the exact sprocket tooth count for a custom build? Stop searching for "close enough" sprockets and start making exactly what your project needs. In this video, I walk through my entire process for making custom sprockets at home - specifically for the 2-stage transmission setup for my e-dirt bike. From calculating the critical pitch diameter to milling 7075-T6 aluminum, here is how to get professional results in your own workshop.

🚲 Watch the E-Dirt Bike Build Series:
https://www.youtube.com/playlist?list=PLdO3Wk-XPC_BQ7GYUZqXf11yAac_USfDP

Time Stamps
00:00 - Why DIY Sprockets?
00:30 - Terminology: Pitch, Root, & Roller
01:55 - The Secret: ANSI vs. JIS Standards
02:48 - Tooth & Valley Profile
05:05 - The Tracing Hack: Digitizing Tooth Profiles
06:10 - Sprocket Math & Worksheet Walkthrough
08:08 - CAD Tutorial: Layout in SketchUp
10:45 - Pro Tip: 3D Printing Your Prototype
13:34 - CNC Sprocket Milling: Carvera Air Setup & CAM
21:29 - Final Fit Test & Build Update

In this tutorial, we cover the essentials of sprocket geometry, including why motorcycle sprockets use shortened teeth for high-RPM engagement. I demonstrate how to use SketchUp for parametric-style layout, Prusa Slicer for 3D print testing, and the Makera Carvera Air for milling 7075 aluminum. If you’ve ever wondered how to calculate pitch diameter for a 520 chain or how to use a CNC for making metal parts, this video is for you.

#DIY #Engineering #CNCMilling #EDirtBike #SprocketDesign #CustomParts #Machining #SketchUp

Website: https://www.resystech.com

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