BS30: Featherweight Combat Robot Build

 

BS30 - FW (30lb) Combat Robot




    Hi! My newest robot is a 30lber with a large overhead bar spinner. This is my first serious horizontal build, and it'll be competing along side my 12lber Chronus at NHRL in September. I'm super excited for this build, as it's my first attempt at a featherweight in almost four years. This robot has two 5215 iFlight Xing motors driven by a pair of 120a Castle Creations Mamba 2 speed controllers at 6s voltage. For the drive solution, I have four individual drive compartments, each with a designated 2808 Tempest motor inputted into a 16:1 P6S gearbox, direct driving a 2"x.875" Colson and chain driving a 1.625"x.875" Colson. 
This design features a 26.5" tribar storing an estimated 15KJ of energy with a theoretical tip speed of 200mph. With an offset COM I imagine its inversion will be corrected with a similar rotation of the main body to encourage its self-righting. 
The 8wd base can be described as impractical, but it results in a greater redundancy upon the independent drive compartments, ensuring its locomotion regardless of its physical state. 

This picture shows the apparent cad design in the absence of its top plates. This reveals the Castle 120a speed controllers, compartmentalization, as well as the major electronic compartment opposite to the speed controllers. This design conforms to the tribar hub, which necessitates it to supersede the core of the robot to minimize the requires fasteners. Contrary to the obvious, a large inertia on the flywheel will reduce the need for its fastening to the drive base due to the extenuation of the drive base's inertia. Because of this, many FBS and overheads utilize the principle of allocating greater weight to the flywheel to minimalize the robustness of the drive base. 





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