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Re: How do you shoot so fast?
PID sampling rate can affect your responsiveness as mentioned above, but physical setup is more likely your issue. More mass to the flywheel means it will have more inertia at speed. You need more energy to get to that inertia, so a longer ramp up, but the energy each ball takes from the shooter will be a lower percentage of the available inertia with the higher mass. I'd also look at your gearing, compression, and wheel contact time. A 1:1 ratio on an 8" wheel seems fast to me, since some Ri3D robots were shooting at the high goal with wheels half that size. I didn't look at their gearing, but direct drive CIM on a 4 inch wheel would give you double the available torque, which should decrease your time to spin back up to speed. More motors is also an option.
The rule in industry is, you don't fix mechanical problems with programming.
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FRC Team 498 (Peoria, AZ), Student: 2004 - 2007
FRC Team 498 (Peoria, AZ), Mentor: 2008 - 2011
FRC Team 167 (Iowa City, IA), Mentor: 2012 - 2014
FRC Team 2662 (Tolleson, AZ), Mentor: 2014 - Present
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