Nothing But Net Final Robot
For our final robot we ended up scoring 190 pts, our flywheel ended up working exactly the way we wanted. With our 2motor, 1-16.3 ratio and ratchet system the flywheel never overheated and had enough tourque to sleep up in 2-3 seconds. We used two wheels wrapped in elastics with zip ties holding the elastics on for our wheel.
At first we had a 1-49 ratio on out flywheel that was powered by 2 V.5 motors, we had problems with overheating due to such a high ratio so we ended up swapping a 12T gear for a 36T gear wich made the ratio 1-16.3
1-49 ratio gear train
1-16.3 ratio geartrain
For our ratchet system we used a sprocket and a 80T gear, we had to use the sprocket because we only have one proper ratchet gear but Jimmy was usint it so we improvised. The ratchet ended up working very well with minimal friction.
Here is a photo of our previous ratchet designs from earlier this year.
We kept our Drivebase the same from the previous portfolio update, we had a 18”x18” base with 2motor drivebase. We had no issues with the base only running off of 2 motors, there was no lack of power.
Here are some photo’s of our final robot, we had 6 rollor intakes to pick up the balls and guide them into our flywheel, we ran the 4 lower rollers off of one motor and the top two off of another motor. We did this so we wouldint have the balls all jaming into the flywheel and we could control the amount of balls we intake.
To reduce friction on the flywheel we used the shortest shaft we could going through the flywheel, we used a 1x2x5 length c-channel attached with 4 standoffs coming off of the suport bar opposite of the gear train. This way we did not need a shaft conector.
For the intake we also built guides with standoffs running from the front to the back of the robot guiding the balls into the rollers. The standoffs were mounted on the bottom of the robot, they worked well but could have been improved, we occasionally had balls get stuck wile being intaked but it did not occur regularly.
We mounted our micro controller and battery along the suport bar in the front of the robot so its is easy to access and also we can see any errors that may show up on the digital display. We used a standoff as a support for the micro controller to make sure it will not be damaged during a match.
Testing & Preload Shooting
Here are some video’s we took of our robots performance on the feild, the first one is feilding and the second is us shooting preloads.
Here are some video’s we took of our robots performance on the feild, the first one is feilding and the second is us shooting preloads.