Go to Post It's all about bragging rights, awards, and pushing the envelope, not necessarily winning or practicality. - ahecht [more]
Home
Go Back   Chief Delphi > Technical > Technical Discussion
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Closed Thread
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 22-01-2011, 02:38
Seathan93 Seathan93 is offline
Registered User
AKA: Ian
FRC #1389 (The Body Electric)
Team Role: Leadership
 
Join Date: Feb 2009
Rookie Year: 2007
Location: Bethesda
Posts: 28
Seathan93 is a name known to allSeathan93 is a name known to allSeathan93 is a name known to allSeathan93 is a name known to allSeathan93 is a name known to allSeathan93 is a name known to all
Mecanum Wheel Control

So I've gotten into a debate with my co-captain about how to control a Mecanum Drive system.

He thinks 1 joystick for driving around will be very intuitive, and therefore better.

I think, while not quite as intuitive, 2 joysticks will end up being better because there's more option for control and with practice, just as easy to control.

Neither of us have built mecanum drive before and I was wondering if any teams who have could lend some insight from their experience.

Thanks in advance.
  #2   Spotlight this post!  
Unread 22-01-2011, 02:55
big1boom big1boom is offline
Chains=Fun
FRC #2022 (Titan Robotics)
Team Role: Alumni
 
Join Date: Jan 2009
Rookie Year: 2007
Location: Aurora
Posts: 267
big1boom is a glorious beacon of lightbig1boom is a glorious beacon of lightbig1boom is a glorious beacon of lightbig1boom is a glorious beacon of lightbig1boom is a glorious beacon of lightbig1boom is a glorious beacon of light
Re: Mecanum Wheel Control

Some teams use one 3 axis joystick (x,y,twist). Others use 2 joysticks (one for translation, other for rotation.

2022 used 2 joysticks last year on an Xbox controller. The left stick was for translation, the right was for rotation, and the triggers were for turbo mode. It resulted in a very intuitive driving style with very high fidelity.

I know I would personally prefer the 2 stick method, simply because whenever I move a 3 axis joystick around, it always twists a little bit.
__________________
  #3   Spotlight this post!  
Unread 22-01-2011, 08:45
Alan Anderson's Avatar
Alan Anderson Alan Anderson is offline
Software Architect
FRC #0045 (TechnoKats)
Team Role: Mentor
 
Join Date: Feb 2004
Rookie Year: 2004
Location: Kokomo, Indiana
Posts: 9,112
Alan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond repute
Re: Mecanum Wheel Control

Quote:
Originally Posted by Seathan93 View Post
Neither of us have built mecanum drive before and I was wondering if any teams who have could lend some insight from their experience.
Program it so several ways are available, selected by the operator. Let the best scheme emerge. You need to turn driver input into translation/rotation commands anyway, so it's just a set of different transformations from which to choose.
  #4   Spotlight this post!  
Unread 22-01-2011, 08:54
sgreco's Avatar
sgreco sgreco is offline
Registered User
AKA: Steven Greco
FRC #2079
Team Role: Mechanical
 
Join Date: Jan 2008
Rookie Year: 2007
Location: Millis
Posts: 1,031
sgreco has a reputation beyond reputesgreco has a reputation beyond reputesgreco has a reputation beyond reputesgreco has a reputation beyond reputesgreco has a reputation beyond reputesgreco has a reputation beyond reputesgreco has a reputation beyond reputesgreco has a reputation beyond reputesgreco has a reputation beyond reputesgreco has a reputation beyond reputesgreco has a reputation beyond repute
Re: Mecanum Wheel Control

Quote:
Originally Posted by Seathan93 View Post
So I've gotten into a debate with my co-captain about how to control a Mecanum Drive system.

He thinks 1 joystick for driving around will be very intuitive, and therefore better.

I think, while not quite as intuitive, 2 joysticks will end up being better because there's more option for control and with practice, just as easy to control.

Neither of us have built mecanum drive before and I was wondering if any teams who have could lend some insight from their experience.

Thanks in advance.

If you know who's driving your robot, ask them what they want. It's not so much about what makes sense for everyone on the team, it's about what the driver thinks is easiest.
Closed Thread


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 16:50.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi