During Week 3 the teams presented the individual designs to GE for a design review. Each team also worked on CAD models and started prototyping. Construction of the practice field bridge and barrier were completed.
The electrical team completed CAD drawings of electrical boxes. They continue to work with other sub-teams to confirm motor needs and plan to order all remaining components this week.
The programming team is working to complete the systems design document. They are also programming the X-Box Kinect which will be used during the Hybrid portion of the competition.
The Drive Train/ Chassis completed rebuilding improved gearboxes. Their next step is to build the frame.
Special Ops 1, Balancing and Bridge Management completed the CAD design of the appendage to lower the bridge. Next step is to complete prototyping.
Special Ops 2, Ball Capture and Pickup, completed 90% of the CAD design. The objective for next week is to complete the integration with other systems and complete the prototype.
Special Ops 3, Ball Shooter, completed a prototype shooter design and found that it had a fairly good average. This week’s task is to complete the CAD drawing of a ball accelerator.
The animation team worked on the assignment: to create an animation that demonstrates a way to improve the education system. So far, they have decided on a story line and completed the story board. Next they are working on character modeling.
Team 2039 is off to a good start. We decide it is important for our robot to be maneuverable, to easily pick up balls, and to accurately shoot them in baskets. With this in mind, we formed several subteams:
- Electrical & Programming
- Drive Train & Chassis
- Special OPs 1 – Appendages & Ballast
- Special OPs 2 – Ball Capture & Pickup
- Special OPs 3 – Ball Shooter
- Public Relations & Organization
We also have a temporary systems team that is working to integrate the work of the design/build teams.
The Electrical Team is working to house all the electronics in a sealed house, this will protect them from dust and metal shavings that have cause problems with the systems in past robots. Programming has not started yet, but the team is brainstorming ways to use the camera to detect many attributes of our targets like angle, position, and distance using special computer software connected with our robot in new ways.
The Drive Train/ Chassis sub team worked with Inventor to design the frame while implementing a well learned design lesson. Next week we plan on cutting and welding, and hopefully prototyping our frame.
Special Ops 1 has designed an appendage to assist in the collection of balls on the field, based on an idea by lead mentor Adam. The appendage is made up of two spirals, one for the front-leftcof the robot and another for the front-right. These spirals are going to be made of PVC and then provided a thread of something like surgical tubing which will twist such that, when both PVCs are attached to motors, the ball would hit a pipe and follow the surgical tubing into the middle. We also designed a ballast that will automatically move a large mass such that the robot has better balance.
Special Ops 2 met and discussed ball pick up and handling strategies. We made several plans for the storage of the basketballs and reviewed the pros and cons of each. We also spoke with Special Ops 3 and went over space constraints within the robot.
Special Ops 3 began to prototype different shooter designs. We started a CAD drawing of a ball accelerator. We also build a gear box to launch balls.
Team 2039 launched its 2012 build with a kick off meeting at Eigerlab. In the morning, students and mentors watched the kickoff ceremonies that introduced this year’s game: REBOUND RUMBLE. They devoted the afternoon to developing robot design ideas and game strategies.
Parents joined in by planning construction of a playing field which we will use to testing our robot design and practicing our driving skills.
The Rebound Rumble robotics game is played between two Alliances of three teams each. Each Alliance competes by trying to score as many of the basketballs in the hoops as possible during the 2-minute and 15-second match. Balls scored in higher hoops score Alliances more points. Alliances are awarded bonus points if they are balanced on bridges at the end of the match. In matches where opponent Alliances work together to balance on the white bridge, all participating teams earn additional valuable seeding points.
Though most construction is complete, the team continues to optimize the robot’s operation. Most of this work falls on the shoulders of our programming team: Their work this week included:
- Completing the logic for the solenoids that controls that open and close the robot’s “claw.”
- Wiring the line sensors that control the robot during its autonomous mode.
- Troubleshooting drive issues, i.e., fixing a damaged motor controller.
- Developing programming logic for the mini-bot deployment.
Our competition drive team started practicing their robot moves.
As arm and drive train construction is mostly complete, the programming team installed wiring and controls. They are now writing the code that will manage the robot operations.
We’ve redesigned our minibot yet again. The new design takes into to account engineering principles discussed during our design review at GE Aviation.
Students also evaluated potential drive team members based on interviews and a skills test. Our drive team members are Ty, Jeff, Brendan, and Karl.
Special Ops Team 1, the “arm” team, attached the robot arm to the drive train. They are now adjusting arm’s linkage so that it will fully retract within the robot body when not in use.
Special Ops Team 2, the “minibot” team, is still working to optimize the minibot design. They have agreed on four inch wheels with a 90 degree orientation. And they modified the gear boxes to increase speed by removing gear stages.
The Programming Team is wiring the drive train and arm. Because the robot drive train is complete, students working on this team were assigned to other projects
Students also worked on projects not associated with hands-on robot building.
- Because GE Aviation graciously offered to perform a design review, sub-team captains are putting together a power point presentation that includes CAD drawings, calculations, and solid descriptions as well as game strategies.
- Other students are constructing a battery charging station. The robot operates off of one battery, but it may only have sufficient charge for one competition round. The team designed the robot so they can easily swap out batteries. Our new station can charge up to six batteries at a time.
- A third group of students put together a “test” to help the team choose who will drive the robot during competitions. It includes an interview, a problem solving components, and a manipulative game to check dexterity.
- And yet a fourth group of students is preparing our submission for the Wisconsin Regional Chairman’s Award.
The robot drive train welding is complete. The Drive Train Team and the Special Ops Team 1, the “arm” team, are working together to attach the arm to the frame. Some team members are also working to construct the frame bumpers and sew bumper covers.
The Programming Team completed basic programs for the motor controllers. They are now waiting for build teams to finish robot construction. Then they will integrate programming controls into the robot.
Special Ops Team 2, the “minibot” team, completed construction of a working prototype. However, after experimenting with the prototype, students decided they needed a faster minibot. So it was back to the design stage. They removed gear boxes, which changed the gear ratio thus increasing the minibot’s speed. They are now working on a wheel and shaft assembly to propel the minibot.
Mini-bot team finally got bot to ascend score pole. After bot climbs pole, pneumatics push a magnet out so it stays there. This addresses concerns that after bot ascended pole, it would quickly slide down and destroy components.
Behind the scenes – grant requests, assembling bumpers (including sewing team numbers to fabric), creating a scouting sheet, button design.
While Robot frame is off site being welded, the Drive Train sub-team continued work by using CAD to integrate motors into the design. Team ordered extra chain, links, and sprockets. We will use these materials to control the Robot’s locomotion.
Special Ops Team 1, the “arm” sub-team, completed CAD design of the robotic arm. We are using a chain drive to operate the primary arm pivot and a pneumatic system to control the “claw” and “wrist” movements.
Special Ops Team 2, the “mini-bot” team, is adapting a Tetrix kit to make a customized miniature robot capable of quickly moving up a vertical pole. The mini-bot will employ neodymium magnets to grab the pole and an electronic motor to propel it upwards. Tetrix kits are similar to an erector set. Neodymium magnets are the strongest type of permanent magnets made
The USFirst organization provided new equipment to control motors. The programming team is learning to use this equipment and integrate it into robot design.
Following the Kickoff meeting, students and mentors discussed the game strategy. They agreed our challenge is to build a drive train is fast and maneuverable, a robotic arm that can pick up the inflatable shapes and place them on the scoring area rack, and a mini-bot that quickly ascends the score pole. Based on that assessment, we formed four sub-teams: Drive Train, Special Ops 1 (arm), Special Ops 2 (mini-bot) and Programming.
During the first week, each of the build sub-teams used CAD (Computer Aided Design) software to draft robot designs. Based on those drawings, students cut parts for the robot frame and sent them to be welded.
In addition to robot specific activities, a group of students and mentors constructed a game field which we will use to test robot design and prepare for competitions.
Another group of students developed our 2011 logo, integrated it into a t-shirt design and submitted it for printing.to robot specific activities, a group of students and mentors also began constructing a game field model which we will use to test robot design and prepare for competitions.