Hypothetical change up design

Right, but OP is suggesting using a puncher to launch balls. If you wanted a flywheel to launch balls like a puncher would, there would most definitely be considerable time for the rpm to recover before you could launch another.

Launching balls far isn’t a good idea, the tolerances of the goals are too small. And no, the flywheel would not take that long to “recharge” if it was designed correctly.

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If you are shooting from a far distance, spin up is a slight issue, but shooting far is impractical to do so in this game anyways in my opinion. If you’re right next to the goal the time between shots is very very small, and it’s important to recognize why this change occurs with flywheel speed: v5 motors have more than enough power to make the indexer spin up again at a lower speed because power is torque times rotational velocity. At a lower rpm, you have more torque (assuming power is constant). With more torque comes more rotational acceleration, meaning less spin up time. When the load is increased, since momentum is mass times velocity, the velocity has to decrease because of the increase in mass since momentum is conserved.

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Think I have mentioned at least twice in this thread that for this season or for this situation, the time for the flywheel to spin back to speed can be not obvious or insignificant.

I stepped in to address the misconception when someone mentioned that flywheel has no reload time - which is not true at all.
Eg. During nbn, we were talking abt how to cut the spin up time to the region of 0.2sec. But there was still a spin up time involved (regardless of how small it is).

So what I have been doing here is to address the physics concepts for flywheel.
And learning the right concepts will enable you to reuse what you have learnt over here for future applications as well.

The physics concepts presented are facts, it is not an argument.
And I can’t believe that someone has mentioned that my desire to use this teaching moment to present the right Physics concepts should be listed as “negligible “.

Up to you To decide if you want to use this moment to learn the concepts behind mechanism (which will actually help a lot to fine tune your flywheel). But please do not stop others from learning or presenting the technical aspects of robotics.

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I rewrote my response to better convey what I meant. I don’t think this opportunity to learn physics is negligible, but it’s effects in this scenario are because of the small speed required (I wouldn’t even call what most snailbots have a true flywheel- but the effects are still there on any mechanism that deals with a change in momentum of course; they’re just significantly less noticeable).

I would say that the balls in Change Up are way too big to make that type of robot viable.