MyRCCar OBTS Chassis Building Instructions

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## MyRCCar OBTS Chassis BUILDING INSTRUCTIONS ### Pre-Concepts: Any corrections are welcome. - **Scale**: The proportion between the real size of a thing and the model or drawing size. I prefer 1/10 scale for its simplicity in the metric system. Ten meters in real size will be one meter in 1/10 scale. A 500mm diameter real wheel will be a 50mm wheel in 1/10 scale. - **Wheelbase**: The distance between front and rear axles. - **Caster**: The rotation of an axle (front or rear) and its suspension system over itself. Caster varies in sourced RCs in many ways, I try to rotate all the related parts certain degrees over the axle center. - **Camber**: The inclination of a wheel relative to its normal position. - **Toe**: The convergency or divergency of wheels in an axle. If the alignment of the wheels of an axle converge into a point in the forward direction, I think they call this "Toe-In", while if they diverge they call it "Toe-Out". This "deviation" can also be measured in degrees. If you follow these instructions and those in related publications, you should come from this:    To build this:  The parts in these photos don't include the sides of the chassis, so the weight of the printed parts will be bigger. ### OBTS Chassis, What's This? On-Road, Buggy, Truggy, Short-course would be four different types of RC cars. As this OBTS Chassis is for me, the unexplored type for me, the Short Course Truck one. I think these cars are heavier and more powerful than truggys, and also use other kinds of shells, another shape. Now you must know wheelbase will influence the max size of battery in length and also the length of the motor can. So for example, for a 255mm wheelbase, the max battery length will be 135mm. For a standard 270mm wheelbase, it will be 150mm. Also, the length of the needed central dogbones for transmission will change with wheelbase and "partial wheelbases". **New dlb's concept: Partial Wheelbase** The car chassis, mostly in all its structure, is divided into front and rear parts. This is needed to be able to print them in the most common printer bed size, 200x200mm. *** ### Hey! I Almost Forgot About It I created [my YouTube channel](https://www.youtube.com/channel/UCmwl6WY2EyZcWCt5bSgKb7A) to upload all my videos about MyRCCar and some other future projects. Here you have some links for OBTS chassis related videos: - [MyRCCar 1/10 Complete Buggy Build. A customizable 3D printed RC car](https://youtu.be/hYULmJWjP6Q) - [MyRCCar 1/10 Complete Buggy Build. Accessing the battery](https://youtu.be/sQ-pWE8tr54) - [MyRCCar 1/10 Complete Buggy Build: Wet day test](https://youtu.be/Pk_DrvNfP9g) - [MyRCCar 1/10 Truggy Build, a complete 3D printed RC car with working shell, bumper, wing and lights](https://youtu.be/p8hnDa9LPgM) - [MyRCCar 1/10 Buggy / Truggy LED Lights Holders. RC Car Light show!](https://youtu.be/eKCUAXWVkYE) - [MyRCCar 1/10 4th build testing](https://youtu.be/2wt6ya_h8J8)