From our testing in Nothing but Net, we found that punchers were much easier to build and tune. Given that Singapore VEX was about 2 months after the game reveal, we needed a reliable design that was quick and easy to build, so we just went with the puncher.
But we might try out a flywheel later in the season, when we have the time
8068E has a turntable powered by 1 motor, which uses a pneumatic claw to grab the caps. 8068X also has a turntable powered by 1 motor, but uses a passive intake to grab the caps.
Singapore Vex this year was on the 18th and 19th
The passive claw cannot intake the caps whilst it is titled, but it can intake it quite well while it is flat on the ground. The main problem we faced with a passive intake would be that it is not easy to score the caps because of the non-linear motion of the 4/6 bar, so any misalignment would cause the cap to fall out.
We should be posting some more photos and pictures of it at Singapore Vex
What made you go with the angled passive cap intake instead of the one most people have been proposing with the standoffs coming out at a 90 degree angle off the c channel? I know you would have to implement a release mechanism due to size constraints, but this shouldn’t have been too difficult. We haven’t gotten any elements yet so I haven’t started prototyping yet, just curious.
I assume you are referring to the ‘Y’ shaped intake design. We actually did try to have standoffs coming out at a 90 degree angle for our early robot designs. One of the main issues we faced was that it was very hard to aim and intake the cap because of the small intake area. This Y Intake solves that problem because it can intake the cap so long as any part of the standoff is touching the core of the cap. If tuned properly, this intake design can definitely be very effective.