The grid of Junctions on the POWERPLAY field is the largest field obstacle for this season. Ground, Low, Medium, and High Junctions spaced in a 2ft grid can limit the amount of space your robot has to navigate the field. There are floor obstacles as well- the Ground Junctions. The Ground Junctions are 0.56in tall with a recessed portion that drivetrains can get stuck on if they do not have the necessary clearance. However, once a Cone has been scored on a Ground Junction, you can no longer drive over the Junction.
Robot rules have mainly stayed the same for this years game. The main constraint is the starting 18" x 18" x 18" sizing requirement.
While there are many types of drivetrains teams can build, getting a drivetrain up and running as quickly as possible to begin testing should be a priority. This year the two main drivetrains we considered were Differential Drive and Mecanum Drive.
In addition to changing the wheels, you can vary other parts of your drivetrain to change how effective it is for navigating the POWERPLAY field.
One way to do this is to change the size of your frame. If you shrink down your drivetrain, you will have more space to drive around the grid than if you built your robot to the full 18in X 18in dimensions. However, if you do this pay attention to the geometry of your other mechanisms as that will change too.
Using either differential, mecanum, or another drivetrain for a robot will lead a team to success this season. For our prototyping and the final Starter Bot we used the channel drivetrain. In the video below we installed an optional mecanum upgrade to our Starter Bot to highlight it's maneuverability on this years field.