The drive train and chassis of Generation 2 marks the largest change to the robot at this stage. The two driven front wheels of Generation 1 were replaced by a double skid mounted to the front of the robot. This skid system was created using wooden dowels and plastic ball casters. This skid is best seen in the 3rd isometric view pictured below. The driven wheels in the back were rotated 90 degrees from the original system and mounted by screwing the engine onto a customized double angle bracket that was then bolted onto the chassis. The axle and wheel were fed through another hole in the customized double angle bracket. The chassis was changed from the original rectangle and an added backplate to a rectangle of aluminum bent into an L shape. The thickness of the aluminum used for the chassis and custom built parts were also created to scale, changing the thickness of the aluminum to Gauge 12. Angle brackets (best seen in the 2nd isometric view below) were customized to guide a chain meant to connect the servo motor to the lift mechanism and added to the robot to attach the lift system to the support system and the chassis. The servo motor arm was attached to a sprocket wheel that would later be attached to a sprocket chain to move the lift in the front of the robot. The lift was designed to be 3D printed and was slimmed down from the boxier version of Generation one, reducing the amount of material needed to print it. The lift was measured to perfectly fit under the core.
Click to see Generation 1
Continue to Generation 3
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