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#16
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Re: Most Graceful Mecanum Robots?
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We are doing omni this year and are considering adding a button for a pre-programmed evasive maneuver. Is this one of those? |
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#17
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Re: Most Graceful Mecanum Robots?
We used a flight simulator type of joystick for our recycle rush Mecanum Drive. This enables you to control both direction, and rotation (via twist) simultaneously and intuitively. You could use this method for either field centric or robot centric control.
Logitech 963290-0403 is a very reasonably priced PC USB option. |
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#18
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Re: Most Graceful Mecanum Robots?
Or have one driver trained with field centric and one trained with robot centric and switch control between the two as needed.
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#19
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Re: Most Graceful Mecanum Robots?
A moon maneuver is a move in which you "orbit" around a fixed point, often an opposing robot, while facing that point at all times, much like the moon orbiting the Earth.
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#20
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Re: Most Graceful Mecanum Robots?
I'm not sure if you're joking, but this is a completely ridiculous idea. This is almost guaranteed to give you worse performance than giving the same driver double the stick time, and the speed lost in switching drivers mid-match completely negates the relatively minor speed advantage of switching between the styles of drive. Don't do this.
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#21
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Re: Most Graceful Mecanum Robots?
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#22
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Re: Most Graceful Mecanum Robots?
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--- This year Mecanum seems to give the most advantage during line up of receiving a gear and placing a gear. In field-centric mode, it does so by increasing margin of error and intuitiveness to do those tasks. The most graceful Mecanum bots this year will do just that, IMO. Juke moves with Mecanum under-perform 9 times out of 10. In my experience, Mecanum doesn't seem to reduce the time it takes to do those tasks when compared to a practiced driver on a tank. Time is the differentiator in everything at high levels of play. I'd even say that a tank drive which sprints 16-18ft/s during the straightaways and shifts to a 6-7ft/s low gear for the line-up would still be a faster cycle time than a Mecanum drive at an overall 12-13ft/s. So "graceful" Mecanum bots who can score well in a reasonable amount of time may find a home on my alliance in early events simply because I set goals for my team to do so well at our singular role that the Mecanum bot will be largely undefended. Or maybe I get that Mecanum bot on my alliance in order to absorb the defense since they're so easy to defend. Who knows . |
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#23
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Re: Most Graceful Mecanum Robots?
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We still have plenty of time to abort if we discover this is more trouble than it is worth. |
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#24
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Re: Most Graceful Mecanum Robots?
None.
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#25
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Re: Most Graceful Mecanum Robots?
Something about "Going sideways is a waste of time"?
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#26
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Re: Most Graceful Mecanum Robots?
I agree that we really haven't seen a perfect example YET on how you should drive mecanums but with the constant bashing of the drivetrain ( of people who never even tried it might I add ) it's going be hard to get there.
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#27
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Re: Most Graceful Mecanum Robots?
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Field centric tank drive implemented in this fashion would be an interesting innovation. |
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#28
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Re: Most Graceful Mecanum Robots?
Can't tell if you're talking in general, or trying to call out 254 on having never tried an omnidirectional drivetrain. If the latter, I'd be immensely surprised if they've never dabbled with it in offseason. I assume their on field performance with a WCD needs no justification.
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#29
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Re: Most Graceful Mecanum Robots?
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Strafing can be pretty useful in many situations, but it is an awful choice for travelling long distances quickly. |
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#30
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Re: Most Graceful Mecanum Robots?
I might be bias because this is my own team, but i beleave we got the most our of our mecanum drivetrain in 2015. I know its not the same because the games are so different, but i believe if you go with a mecanum drivetrain you need to use its abilities to your advantage or else you might as well just have gone with tank drive.
https://www.youtube.com/watch?v=7FJLMB58eVU |
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