okay so I had a question for the general public, I have a dual flywheel with two 600 rpm cartridge, it is driving a 60 tooth driver to a 12 tooth driven with 36 teeth idler gears connecting the whole train together. our flywheel seems to be too powerful, (to note, there is no added weight to either wheel) did anyone else who did this speed of flywheel slow the motor speed down in code or are you guys just adding weight and is it spinning your flywheels at optimal speeds?
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We haven’t started testing yet, but we have a 1 motor 600rpm, 84 tooth to a 12 tooth. It spins at ~4200 rpm. We have no good way to test it unto we have our robot mostly built, but our flywheel spins faster than most people I have seen.
I would personally just slow it down in code, and so far we won’t need to weigh it down, but test with weight and slowing it down in code to see what works best for you.
You also said you had two flywheels, does the disc fly stably? We are only using one to get rotation on it.
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after testing a single flywheel, dual flywheel, and puncher, mech, we have decided a dual flywheel is most optimal, spin for the disc to fly stabe (in our opinion) is almost not even needed due to the short range of the game. most shots are being made around half field or at the low goal line. We actually found with testing and research of other teams that the added spin causes the disc to land in the same spot in the goal causing a large stack up making it harder to fill the goal, where as no (large) amount of spin from a dual flywheel causes the discs to land randomly in the goal, making it easier to fill the goal with more discs. same concept with a puncher mech for those wondering. But thank you for your opinion on the solution for our flywheel. anything helps : )
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The motors appear to have oscillation issues when trying set to less than max speed combined with something with large inertia (flywheel). In short, I would gear for desired speed. You also gain some frictional efficiencies due to a closer match in diameter between gear sizes (tooth angle).
keep in mind for a double flywheel, the wheels theoretically impart twice the speed to the disc because none of the speed is lost to the disc rolling against the opposite wall, which is the case for a single flywheel. In reality it’s not quite as simple as this, but generally I think you want to run double flywheels at a slower speed than single flywheels.
Perhaps it’s worth looking into reducing your ratio, or implementing some sort of reduced velocity control for shorter ranged shots.
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