Vex Robotics Nothing But Net
Version 1.0
Our initial Idea was to use a nautilus gear to pull back and release a sling shot to shoot the ball.
After trial and error it seemed that the nautilus gear was not very effective. For the intake our idea was very simple because it was simply just a one motor intake that took in the balls like a conveyor belt. This mechanism seemed very helpful and it turns out that we kept it in some versions. This version of the bot was temporary and lasted only a few days.
After trial and error it seemed that the nautilus gear was not very effective. For the intake our idea was very simple because it was simply just a one motor intake that took in the balls like a conveyor belt. This mechanism seemed very helpful and it turns out that we kept it in some versions. This version of the bot was temporary and lasted only a few days.
Version 2.0
Our second idea for the robot was basically a catapult mechanism that we used at Mt. Sac Robotics Competition. The intake and drive was the same, but the catapult system was actually very complex. Basically it is on gears that pull the catapult down, then the ball from the intake is loaded onto the catapult. Finally, using pneumatics we eject the catapult from the gears which is then pulled up by rubber bands, and the ball is shot. This system was working fine until we ended up stripping many many gears. This system was very effective, but we went through gears as though we had an endless supply, thus we moved on to version 3.0 which we plan to use for Viewpoint High School's Competition.
Version 3.0
For this version of the robot our ideas was to use a single flywheel spinning extremely fast due to turbo gears. This will give the ball enough back spin to launch it into the net. This system is very effective, and it actually very effective in launching the balls from our own colored zone. Here is some specs from the robot...
Drive:
4 motors with internal high speed gearing (1.6),
4 2.35" Omni-Wheels (For accuracy and speed)
Flywheel:
4 motors with internal turbo gearing (2.4), geared 11 2/3:1 (7:3 x 5:1), for a total of 28:1
Single 5" wheel flywheel
Intake:
Tank tread conveyor
2 motors with internal speed gearing (1.6)
C-Channel funnel to align the balls to the intake
Autonomous:
20 pts (4 preloads in high goal)
The autonomous is what we have been getting at our practice field at Westlake High, at Viewpoint we will see if it is as accurate as it is in a real competition as it is in our practice field.
Drive:
4 motors with internal high speed gearing (1.6),
4 2.35" Omni-Wheels (For accuracy and speed)
Flywheel:
4 motors with internal turbo gearing (2.4), geared 11 2/3:1 (7:3 x 5:1), for a total of 28:1
Single 5" wheel flywheel
Intake:
Tank tread conveyor
2 motors with internal speed gearing (1.6)
C-Channel funnel to align the balls to the intake
Autonomous:
20 pts (4 preloads in high goal)
The autonomous is what we have been getting at our practice field at Westlake High, at Viewpoint we will see if it is as accurate as it is in a real competition as it is in our practice field.