Alternative fun things you can do:
8 Likes
Interesting design, my worry as i look at this, i see fly wheels, however youre holding the note pinched between 2 rollers at the same time. When you roll it out into the flywheels, the flywheels will have been in contact with the Note so they will not be up to speed. If you hold it in away from the flywheels they can get it up to speed, but as you being to release it the fly wheels and rollers will be playing tug of war.
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One way to reduce the effects of this is to elongate the distance between the rollers and the flywheel. That way there is minimal time where the note is in contact with both mechanisms
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How tall is the robot? Also I really like the idea of shooting down into amp since you can combine mechanisms for the speaker and amp.
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Will you release the onshape doc of this? It looks pretty good so far.
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Man, this was an archetype that I thought would be unique - but it definitely seems like it could become meta. I studied the field CAD last night, and had a similar archetype in mind. Its main difference was to put the elevator on the side closer to the TRAP so it would have a more natural way to balance out. Other than that there are only intake geometry and overall size variations for different bits.
Not sure how hard/effective the handoff would be, but we start prototyping things today. These game pieces are really bendy, and I suspect thereās some secret sauce to discover.
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So true, I had a similar idea yesterday afternoon so I was very surprised to see a robot so similar to it. I guess the fact that you only need one mechanism makes it super attractive.
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It can fit under the chain at the starting config. The amp is just a pivot, so I donāt have to do any elevator shenanigans, plus it doubles for usage for trap + adjustable pitch shot, which makes it really multipurpose. I do need to fix the shooter for shot consistency though.
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I do not plan on releasing the main assembly yet because Iām not that happy with how it is right now, and thereās a lot I want to improve on. I might stream sometime today to fix things up, though.
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I decreased the compression to 0 on the horizontal rollers (silicone rubber should add 1/8) ish. For traditional shooting into the speaker itāll start in the intake so I can accelerate the horizontal rollers early and avoid the problem I think.
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Can I just say, this robot looks really, really good and competitive. For 12 hours, really impressive. I can see a lot of teams taking inspiration from this.
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Our team came up with a very similar lift and trap design today as well! And we are working on a prototype to test out the idea
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trap was a mistake.
I found that trying to design a trap (legitimately) is absurdly difficult. Itās a lot easier said than done, and the devil is in the details. Iām really curious on how other teams will do it.
Major issues:
- The chain ends up being in the way of the supports, meaning that I canāt actually design good supports, which ruins the structural rigidity
- Designing the hooks in a location where the supports can be well-built usually means that the geometry doesnāt work for actually placing the game piece into the trap
- The chain needs to be unusually low (like 2-4 inches max above top of box tube chassis) to let you reach the bottom of the trap without violating top extension limits
- Swing and whatever causes it to be ???
- I could have been done with this robot 6 hours ago if I wasnāt trying for trap
- Modifying your trap āscoringā mechanism to score better may lead to it being above the chain, which may not allow you to do stage cycles.
- Doing everything is hard.
- Chain go swingy, I donāt know how itāll behave
- Robot will immediately tilt, I donāt know how itāll behave
- Moving the elevator closer to the center interferes with the shooting mechanism.
Iāll figure it out tomorrow, I need to sleep on it I think.
19 Likes
I found a potential geometry with hook on the other side? (ignore the fact the robot is floating, and that the hook will instantly slip off)
Edit:
nevermind, higher likelihood it ends up like this:
the trap is hard
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What is the current frame size of this robot?
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28x28 last time i checked
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How much compression are the shooter flywheels putting on the note?
Please do not reference this design for design/prototyping too heavily. All game piece interactions are based on vibes/guesses from other people since Iāve never touched or seen the game piece in real life before. Sorry about that!
Iāve played with both 2 inches and 4 inches of compression, its parametric so I donāt really care.
9 Likes
