FTC Drive Train Designs: 6WD Drop Center (A National Champion Coach's Tips)
In this video, I’ll show you how to build a 6-wheel drive (6WD) Tank Drivetrain (Skid-steer) for your FTC robotics project!
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This chassis combines agility and traction, with four GoBilda Yellow Jacket motors, four traction wheels, and two omni-wheels. The drop center design allows the outer wheels to be slightly higher, causing faster rotation speed and better maneuverability.
• Advantages of 6WD:
o Excellent traction and stability
o Good acceleration and high top speed
o Versatile for playing both offense and defense in FTC
• Considerations:
o Drop-center design can be tricky for beginners, but the GoBilda drop-center plate makes this process easy.
o Corner omni wheel designs offer good turning dynamics but sacrifice some traction, this design has omni wheels on one side, gaining the benefit of both.
• What is a Drop Center?
A drop center 6WD features a center wheel mounted lower than the outer wheels, ensuring only four wheels contact the ground while turning, minimizing friction for quicker turns.
This tutorial modifies the GoBilda BeeLine model to utilize a chain-driven system. Join me to get your FTC robot ready for this season!
Timestamps:
0:00 Intro
0:42 Motor Mounting
3:37 Pillow Blocks
6:12 Chain Sub-Assemblies
8:00 Drop Center
10:15 2nd Motor
11:30 Motor Axle
14:30 Centre Axle
16:06 Odo Axle
17:17 Chains
21:15 Traction Wheels
22:34 Omni Wheels
25:08 Mirror
25:38 Chassis Assembly
Credits:
Music: VHS Dreams by Shane Ivers - https://www.silvermansound.com