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View Poll Results: Mecanum or Slide?
Mecanum 77 38.69%
Slide 73 36.68%
Other 49 24.62%
Voters: 199. You may not vote on this poll

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  #31   Spotlight this post!  
Unread 04-01-2015, 16:19
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Re: 2015: Mecanum or Slide?

Quote:
Originally Posted by who716 View Post
drop center allows for turning on the center of the robot for quick maneuverability i like that option
but with tall robots and heavy loads they will be very tippy
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Unread 04-01-2015, 16:21
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Re: 2015: Mecanum or Slide?

Quote:
Originally Posted by KineticCougar View Post
What are the size restrictions for the wheels? Can I put 4" wheels on my robot?
Yes you can put 4" mecanum wheels on your robot seeing how both vendors offer them.
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Unread 04-01-2015, 16:50
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Re: 2015: Mecanum or Slide?

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Originally Posted by Peyton Yeung View Post
Yes you can put 4" mecanum wheels on your robot seeing how both vendors offer them.
Consider though that it might not let you go over the ramps.
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Unread 04-01-2015, 16:50
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Re: 2015: Mecanum or Slide?

I like WCD for this one, it's a lot faster than mecanum (the other option my team has the resources to use) and is maneuverable enough to do what it needs to do. Our team did really well in Stack Attack with tank drive. I don't think WCD or tank are out of the option.
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Unread 04-01-2015, 17:04
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Re: 2015: Mecanum or Slide?

Quote:
Originally Posted by pimathbrainiac View Post
I like WCD for this one, it's a lot faster than mecanum
Why do you say that?
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Unread 04-01-2015, 17:10
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Re: 2015: Mecanum or Slide?

because it is true. If you have the same gearboxes with the same motors, the wheels rotate at the same speed, but mecanum looses some of that due to the way the wheels are angled.
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Unread 04-01-2015, 17:14
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Re: 2015: Mecanum or Slide?

Quote:
Originally Posted by pimathbrainiac View Post
because it is true. If you have the same gearboxes with the same motors, the wheels rotate at the same speed, but mecanum looses some of that due to the way the wheels are angled.
Why do you need to be fast in this game?

A better way to look at this game is analyze where your robot needs to go and what is between you and that point. How do you get from these points the fastest? Will that route change during the match? If so how do you overcome that?
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Unread 04-01-2015, 17:26
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Re: 2015: Mecanum or Slide?

Quote:
Originally Posted by pimathbrainiac View Post
because it is true.
No, it's really not.
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Unread 04-01-2015, 18:44
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Re: 2015: Mecanum or Slide?

Quote:
Originally Posted by KineticCougar View Post
Can I put 4" wheels on my robot?
Is there a rule prohibiting you from putting 4" wheels on your robot?

If you want to use 4" mecanum wheels from AndyMark, make sure to order this set of wheels and not this set, which is designed for FTC robots and is not rated for the weight of an FRC robot.

(VexPro only sells one type of 4" mecanum wheel, and it's rated for FRC robot weights.)
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Unread 04-01-2015, 19:21
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Re: 2015: Mecanum or Slide?

Just be careful on using slide if you are using 2"x1" frame because that middle wheel is likely to be damage by going over the platform



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Unread 04-01-2015, 19:26
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Re: 2015: Mecanum or Slide?

Quote:
Originally Posted by pimathbrainiac View Post
because it is true. If you have the same gearboxes with the same motors, the wheels rotate at the same speed, but mecanum looses some of that due to the way the wheels are angled.
Why would you gear two different drive systems the same?
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Unread 04-01-2015, 20:46
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Re: 2015: Mecanum or Slide?

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Originally Posted by Whippet View Post
I wish that paper addressed the "top speed, and thus the 'feel' of accelerating, in the sideways direction is less than the forward and reverse direction." I still don't know if that one is true.
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Unread 10-01-2015, 13:38
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Lightbulb Re: 2015: Mecanum or Slide?

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Originally Posted by Mineboy2300 View Post
I would go with slide because it provides maneuverability and speed but doesn't have the problems with balance that mecanum does. it would take a lot of engineering to make sure that the entire robot is balanced both with and without the totes on it.
However if you used slide you would have to build a kind of suspension system to prevent the center wheel from being snapped off when going over the bumpity bump
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Unread 10-01-2015, 13:47
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Re: 2015: Mecanum or Slide?

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Originally Posted by sanelss View Post
swerve. agility is ever more important the more confined you are and you have that bump to deal with
Going to ahead and say without proper motor management swerve might not be optimal. The standard swerve I see takes 2 cim's per module with 3 modules. That is using 6 cims.
Now if you don't use all 6 cims you would have in theory 3 spare cims. Thats a lot of motors for super structure.
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Unread 10-01-2015, 14:58
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Re: 2015: Mecanum or Slide?

Most swerve drives I've seen have four modules with 1 CIM each, although I have seen one offseason swerve drivetrain that used 3 modules.
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