Charged Up - Year in Review
Working with our Scouting Team, Drive Team, Coach, and all returning members, we thought it would be a good way to start our Crescendo year with a look back at Charged Up. We took a look into all aspects of our year and noted some spots for improvement and spots where we excelled. With us starting our Open Alliance thread we figured it was a good spot to put it.
Build Season
Hand
During build season we took inspiration from RI3D and went with a double piston grabbing mechanism. The pistons faced away from each other and we aligned it so that there was enough stroke to grab a cube without popping it and a cone to not fall out. We also attached this to our arm mechanism using a hex bearing so that the hands could spin freely, since we were looking to pick up from the front and score from the back. So in theory we could pick up any cone in any orientation and then score it using gravity to our advantage.
Hand Inspiration
Arm
Beyond the hand mechanism, our arm was a climber in a box single stage with a piston on top since the string was not strong enough to pull our hands up. We also already had pneumatics for the hands so one more piston on top was not going to mess with our setup.
Scoring
We scored pieces by rotating our arm from the floor in a cutout of the from frame, overtop the robot and facing behind where our arm extended for scoring on all levels. This was a neo straight onto a hex rod at 1:25 gearing. We noticed late in the year that we should have ran a chain to a sprocket since the neo was getting beat up.
Strategy
In previous years we have not had complex autonomous routines, only score and move. Since we were able to finalize our design early in the season we had plenty of driver practice and auto testing. Going into Mount Olive (Week 2) we wanted to score a piece, exit the community and pick up another piece. We had thought that auto balance would be done by most teams so we focused on game pieces. We all agreed that we should have flipped those and prioritized auto balance. During teleop we would pick up cones from the double substation or cubes on the floor. We could pick up floor cones but the alignment took too long and was challenging when testing. During week 1, our scouts watched competitions to develop their scouting log while the drive team was able to score 9 pieces in 2 minutes in our mock field (the library of our school is large and carpeted). We were hopeful to be a top 10 team exiting Saturday (day 2 of comp).
Mount Olive
Quals
As discussed in strategy, we thought we had good practice and a good enough design to be competitive every match in Mount Olive, we were very wrong. Inspection went fine, our working pressure was at the max so we had the best grip we could for our hands. During our practice match our auto worked fine where we scored our cone on the mid node and left the community but we were on the bump side and missed our second piece. We then spent the rest of the match struggling to pick up a cone and hold onto it when going across the field. We added more grip tape to the hands but nothing seemed to be better for our next 8 matches. After every match we looked at the hands and we could not figure out what was wrong. They would either not be strong enough to hold or would not spin to drop the cone. We ended up 1-7-0 for Saturday and we were the last ranked robot. Spirits were down but we had a plan for Sunday that would hopefully work out. We thought that if we were to shorten the hands and not have them rotate we could get a better grip on cubes and cones. This means though that we can only score our auto cone since it had to be upside down to score properly but if we can then score cubes anywhere we could at least maybe be a second pick for someone. Our second match on Sunday was with the number 1 and 2 ranked teams at that point 11 Mount Olive Robotics Team and 1676 Pascack PI-oneers. We went into that match that if we could impress them then we could have a chance at making playoffs. We talked before the match in the pits and since they were both amazing robots that we could play a feeder role and bring game pieces for Pascack to score. This way MORT could keep taking short cycles and Pascack would score 2 pieces in their one cycle since we brought them another. It worked out great and we finally got our second win of the weekend. We would then split our last two matches and we ended up 4-8-0 rank 32. We knew we were far from playoffs but we may have impressed some teams on Sunday that we might get a chance.
Alliance Selection
Our president always goes on the field for Alliance Selection and she was very nervous. She knew the place we were in and we would be lucky to even get picked at a filled event (37 teams). For first selections MORT picked Pascack for Alliance 1 and then 125 NUTRONs pick 1923 Midnight Inventors for Alliance 2. At this point I though we were screwed since Alliance 2 already had a cube bot so we would not get picked by them and our only hope was MORT and Pascack, which thankfully happened! This was the first time we have every been on Alliance 1 and we wanted to contribute the best we could.
Playoffs
MORT and Pascack agreed that our feeder role was the best situation for our alliance’s success. Before match 1 we were able to get time on the practice field where we practiced our triple balance where MORT pushed us on the charge station since our back was heavier than our front we could balance together and Pascack could fit with the remaining charge station.
Match 1 - went well and we only needed two to balance in the end due to the lead we had built up.
Match 7 - was a win where we did pull off the triple balance that we practiced.
Match 11- would be the faceoff between Alliance 1 and Alliance 2. Pre match it was decided that we would be playing defense on NUTRONs since they seemed to contribute the most points to that alliance. However 484 Roboforce was their third pick and also played defense so most of the match we were gridlocked in the middle of the field making the cycles longer for everyone else. We should have been able to our teleop Alliance 2 but one of MORT’s swerve module died mid match so they were significantly slower. We then tried to do our triple balance but we slightly overshot the side of the charge station so we backed off and then died in the middle of the floor. We never figured out why but even if we could balance we would not have won.
Match 13 - was now win or go home and luckily MORT swapped out their swerve module before the next match. We went back to our usual setup of us feeding in the beginning but switched to defense in the middle of the match. We were bumping with 1279 Cold Fusion and they ended up getting under us and drove us into their substation area. We could not move and they could not get separated from them. Luckily we won that match but it was a close match.
Finals 1 - we again went to play defense but wanted to focus on herding pieces back in the beginning of teleop. The issue was that 484 flew right onto our side and hit as many pieces as possible while 125 and 1923 cleared the rest of the field. MORT and Pascack then went back to cycling and we were playing defense again. We got slammed right before endgame by 125 and they pushed us into their community where they racked up two penalties against us. We all agreed that the defense was not working so we would go back to feeding for match 2.
Finals 2 - was much closer but in auto we crossed the midline for the first time at the event. Then we traded hits in the midfield and broke our hand system. So we then pushed pieces and tried to win the defensive battle. It was a much closer match but Pascack died right before endgame by the single substation and the alliance 2 triple balance won them the match.
Thoughts
We all agreed that we got the best of a bad situation since we almost did not make playoffs and ended up making it to the finals for the third time ever. We knew we needed to fix our entire scoring system since we were a non factor for scoring at Mount Olive. Luckily though, since we made finals we had a lot of District Points already so we did not need to do amazing at Warren Hills to make District Finals.
Week break
In the week between Mount Olive and Warren Hills we looked at overhauling our scoring system. What we decided was that we wanted to work similar to NUTRON’s where they had a v shaped roller system that they dropped pieces into. What we ended up doing was a handoff system where from the single substation, our human player would drop a cone or a cube and then our existing system would pick up the piece and score it. However we had to get rid of the Climber in a Box arm extended since it did not fit inside our frame with the new bucket. Thus we could only score middle and low but we would do a good job at doing it. In practice we were able to get around 6-7 pieces in 2 minutes scored in the middle row.
Warren Hills
We went into Warren Hills knowing that there would be a lot of teams that were at Mount Olive there so we planned to strategize with that. Knowing that there were a few very good cube only robots we would do 80% cones and be able to complete the sustainability bonus.
Quals
During Quals our system was working well and we were able to go 6-6-0 and a much improved rank 12. Looking back we had one of the hardest schedules according to statbotics and they had us going rank 12 in the 5% range. In our eyes we were proud of what we did and expected us to be an early second pick. However there was enough inpicking that we ended up the Alliance 8 captain. Our second time ever being an alliance captain. We ended up picking 4652 Ironmen 2 and 56 ROBBE to fill out our alliance.
Alliance Selection
We picked 4652 since they were a mid and low cube bot with an auto balance that also left the community. We then picked 56 with 4652’s data since they could score anywhere so the plan was they would score one high link, we would fill middle cones, and 4652 would fill middle cubes and as many low cubes as possible. Then since 56 was very skinny, we could triple balance easily during endgame.
Match 1 - Since we were Alliance 8 we were up against Alliance 1 which funny enough was MORT and Pascack again. However we did know what their strategy would be and they would set up four cones that only Pascack could pick up if they were standing of facing forward. So we decided that 56 would get their cone for their high link, 4652 would get their cube for a mid link and we would run through all the cones and push them against the wall so no one could get them. This worked out and then we all ran cycles and were able keep pace with the top two rank teams. The game came down to endgame and lucky for us, sorry for them, but 8588 burned their motors and could not drive onto the charge station.
Match 7 - After taking down Alliance 1, we faced Alliance 5 who had two cube scoring robots and only one that could score cones. Knowing this, we played bump defense against them to slow down their cone cycles. However, mid match, 4652 got run over and got disabled. Since 4652 got run over Alliance 5 did get a red card and we won the match. We did realize though that our system only works if we are all there and able to help.
Match 11 - we were again in winners finals but we got lucky with the red card so we knew we needed to prove that we deserved to be there. Up against Alliance 3 we went back and forth and we were up by 13 going into endgame. We had two balanced with 9 seconds left and hindsight we should have stuck with only 2 but we went for a tiple balance and it didn’t work. That pushed us down to losers finals. However we knew we were good and we could have won that match.
Match 13 - Against Alliance 5 again we knew that we could beat them it was just doing it. Luckily we had time to get set up and ready. However we noticed last second that our steel angle bracket in our hand broke down the seam and we did not have a back up made. We could not get it fixed in time for the match so we could not score middle at all. So our scoring ecosystem is now broken and 56 needs to score their high link and place the mid cones. Mid match 4652 had a big hit and their drive gearbox broke so they could not move. Then 56 lost coms since their ethernet unplugged. We were disappointed by the loss but we were much improved from Mount Olive.
Thoughts
We played well, we proved that we can perform but we still have the ability to improve. We decided to create an auto balance since we cannot pick up off the floor. Our aim was to be a second pick at districts and an auto balance would be huge for that. We spent the week leading up to districts testing auto balance and scoring faster. We were looking to make our arm work faster and be more reliable.
FMA Districts
This only being our fourth time at Districts (MAR/FMA) we were nervous about the higher ceiling of this event compared to regionals.
Quals
In our Qual matches we performed well and but got unlucky at some twists and turns. We ended districts 4-8-0 rank 45. We again had a hard schedule and lost some very close matches. In the end, it was a great learning experience for everyone on the team and showed how good we could be. That is why this offseason we are looking to do better and look for towards the future.
Offseason
This offseason we have had our recruitment events and gained many new members all eager to be successful. One of our biggest offseason projects is swerve drive. We were able to get it up and running and when Crescendo starts we can build a drive frame for this game that will give us an advantage. We learned a lot from this season and our success allowed us to gain some knowledge on how to be more competitive. If you made it this far, thank you for reading!