Infinite Recharge 2020

Welcome to Infinite Recharge.  A Star Wars themed game in which teams must charge their shield generator to protect Earth from the incoming asteroids.  Teams must work together to collect and launch 7” diameter elephant skin balls called power cells (PC) into an upper and lower portal.  A PC in the upper portal is worth 2 points while a PC in the lower portal is worth one point. There is an inner portal within the upper portal.  PCs scored in this portal are worth 3 points. The game consists of 3 phases. In order to advance past the first phase, teams must score 9 PCs into any of the 3 portals.  In order to advance past the second phase, teams must score 20 PCs into the portals and then spin the control panel (picture the Wheel of Fortune) 3-5 times. In order to complete the third phase, teams must score another 20 PCs and then turn the control panel to a specified colour as instructed.  Near the end of the match, droids must race to the middle of the field to their shield generator switch and activate it by reaching up, grabbing the shield generator, and lifting their robot off the ground.

Below are some of the major field elements.  Notice that the generator switch can pivot. If the generator switch is level at the end of the match (with 1 or more robots hanging) more points are awarded.

We were extremely excited about this game.  We were hoping to be able to launch balls this year.  The team quickly got to work reading and understanding the game and robot rules.  Once everyone had read the rules and a Q&A discussion had taken place, we were ready to analyse the scoring of the game.  We broke into groups and determined all of the actions the robot could do. We then determined how long these actions would take.  We ran short of time and left knowing some of the requirements a robot should meet and how long it would take to accomplish certain actions (such as retrieving PCs, lining up and shooting, driving across the field, climbing, etc).

Throughout the following week, many of the team members met during lunch to continue dissecting and analyzing the game.  We came up with different robot concepts and determined the maximum amount of points a robot could score. In the end, the team decided on a robot that would be able to retrieve power cells from the floor, shoot them into the upper portal, climb, and operate the control panel.  Shooting and climbing were ranked the highest on our priority list.

During our first 3 build days the team quickly got to work researching by looking at successful robots in 2012 and 2016.  These games pieces and games were somewhat similar to this year’s. Next, teams began planning their prototypes.


The intake team began working with mecanum and vector intake wheels in hopes of centering the ball prior to bringing it into the robot.


The team dedicated to launching the PC into the upper portal started by comparing a hooded single flywheel type shooter compared to a shooter with wheels on each side of the game piece.


The indexing team is in charge of taking the PCs from the intake and getting them up to the shooting wheel.  They quickly realized that the power cells do not like to touch each other. They are very grippy and when you try to move them on a belt and against another surface while they are contacting each other they start to jam.


The climbing team was busy brainstorming different ways to raise the robot off the ground as well as having the ability to center itself on the rung.

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