BABz v3 sep 1
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FTC team 22999 KMUTNB GEARS' 2025-2026 robot participated in FTC Thailand regional tournament.
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Model information
- Source
- Printables
- Category
- RC & Robotics
- License
- Creative Commons — Attribution
BABz v3 sep 3 is the current experimental robot of the 22999 KMUTNB GEARS participated in the FTC Thailand 2025 and the recipient of the "Design award" of the region.
v3 Heavily emphasize on maintainability of the robot, its main selling point is the quick detachable drive modules using a latch system our team develop ourselves paired with aesthetically pleasing curves of the "Stealth" series that our team started this year.
Modular Chassis
Modular chassis of the BABz v3 is achieved by using the latch system that would lock each modules in the skeleton of the chassis. Power to the motor is connected through wago connector, allowing quick unlock when detaching.
Stealth cover
Stealth cover is mainly an aesthetic choice of our team, having curvatures most would considered waste of time, we turn a boring safety cover into something that please the eyes of onlookers as well as still acting as a conventional safety cover. Stealth cover also make our design looks refined an aerodynamic, although the stealth cover does not provide any improvement to the aerodynamic of the robot what so ever.
Specification
BABz v3 still uses the 1152 rpm goBilda yellowjacket DC motor, now with the gear ratio of 2:5 for the drivetrain. The rest of the scoring mechanism uses 312 rpm DC motors as well as programmable goBilda servos from the 2024-2025 starter kit.
Category | value | comment |
|---|---|---|
Chassis velocity | 1.8 m/s (ideal) | 2:5 gear ratio of 1152 rpm motor |
Turret flywheel speed | 4000 rpm (max) | |
Flywheel rev up time (0 -> 4000) | 2 seconds | determined from the calculation of moment of inertia |
Turret turning rate | 0.5 rad/s (programmed) 1.2 rad/s (physically) |
All in all, BABz v3 is still imperfect robot with various flaws that could be found all around the robot. BABz is weak against impact during the match, in such case as being hit hard and resulting in the pinpoint computer being out of tune, batter compartment getting pulled out thanks to the latching system. The intake system is subpar with other robot designs at the event. Further development for the premier league still required for this design. But for its purpose as an experimental chassis this year, the modularity of the chassis aided the maintenance team significantly, going down from 4 maintainers to 2 and requires minimal tools to access certain parts of BABz.