Go Back   VEX Forum > Community > Technical Discussion

Technical Discussion Open Technical Discussion of the VEX Robotics System.

Reply
 
Thread Tools
  #11  
Old 05-05-2012, 06:35 PM
SweetMochi SweetMochi is offline
Senior Member
VEX # 1492
 
Join Date: Feb 2010
Location: Seattle, Washington
Posts: 614
Re: Has anyone ever used the 12 inch axles?

Necroed a 5 year old thread...holy moly.
__________________
1492 Team W.A.S.A.B.I.
2010/2011 Round Up World Champions (Thanks Team 44 and Team 1114M)

2011/2012 Gateway Division Semifinalists x3

2012/2013 Sack Attack Division Champions x2
-1492X Third in the World!
-1492A Fourth in the World!

Reply With Quote
  #12  
Old 05-05-2012, 11:10 PM
MarkO's Avatar
MarkO MarkO is offline
Senior Member
 
Join Date: Aug 2006
Location: Albany, Oregon, USA, North Western Hemisphere, Planet Tera
Posts: 2,340
Images: 10
Re: Has anyone ever used the 12 inch axles?

Quote:
Originally Posted by SweetMochi View Post
Necroed a 5 year old thread...holy moly.
I think that most Threads, like this one are on Life-Support...

This Thread was and still is relevant, besides... Now there seems to be a need for the 12" Axel, in its entirety...
Reply With Quote
  #13  
Old 05-05-2012, 11:19 PM
SweetMochi SweetMochi is offline
Senior Member
VEX # 1492
 
Join Date: Feb 2010
Location: Seattle, Washington
Posts: 614
Re: Has anyone ever used the 12 inch axles?

Quote:
Originally Posted by MarkO View Post
I think that most Threads, like this one are on Life-Support...

This Thread was and still is relevant, besides... Now there seems to be a need for the 12" Axel, in its entirety...
Just showing my surprise at the magnitude of the necro the 12" axles will be important in games like Sack Attack where top rollers (as opposed to the side rollers from Gateway) will probably be popular. The intake mechanism will want as much width as possible, thus necessitating the full 12" and possibly even more.
__________________
1492 Team W.A.S.A.B.I.
2010/2011 Round Up World Champions (Thanks Team 44 and Team 1114M)

2011/2012 Gateway Division Semifinalists x3

2012/2013 Sack Attack Division Champions x2
-1492X Third in the World!
-1492A Fourth in the World!

Reply With Quote
  #14  
Old 05-07-2012, 06:18 AM
richard60's Avatar
richard60 richard60 is offline
Member
VEX # 4886A
 
Join Date: Mar 2012
Location: East Corinth,VT
Posts: 96
Send a message via Yahoo to richard60
Smile Re: Has anyone ever used the 12 inch axles?

if it is on a drive train you won`t be able to turn with out breaking them!.........
__________________
Sack attack season:
4886A
Assisted Team 6485D and mentored 6485a (sack attack)

Gateway Season:
Assisted Team 4886D (The Cake)
With building most of their robot.

Cheers and Good luck,

Richard P
Reply With Quote
  #15  
Old 05-07-2012, 07:37 AM
bgambsky's Avatar
bgambsky bgambsky is offline
Senior Member
VEX # 1200
 
Join Date: Nov 2011
Location: Neenah, WI
Posts: 101
Send a message via Skype™ to bgambsky
Re: Has anyone ever used the 12 inch axles?

Quote:
Originally Posted by 2XRS99VEX View Post
I just bought a medium chassis, and am running into the need for longer axle sections going to my gears and motors. I currently have 4X 12" axles from two starter kits, that I don't know if I'll use a lot, and I am thinking about cutting them into 6X 4" sections, and 4X 6" sections. The longest (other than the 12) that comes in the start set is 3".

Has anyone had any need for the 12"ers, and what are the chances that I would regret this for a future project?
We used them once in gateway on our first bot, but we didn't stick with it. I think under certain circumstances they may be useful, but it depends on your design. I've found most use in 4-6" axles not much more because the longer the axle the more likely it's going to twist at one end if space is between it.
__________________
1200 Syntax Error
"I reject your reality and substitute my own!"~Adam Savage
"If it doesn't work, you didn't build it right"
1200C 2011-2012

2011-2012 World Championship Divisional Excellence Award
Reply With Quote
  #16  
Old 05-07-2012, 09:08 AM
meatboy123 meatboy123 is offline
Banned
VEX # MEAT
 
Join Date: Dec 2011
Location: at home (in a house)
Posts: 79
Re: Has anyone ever used the 12 inch axles?

the longer the axle the more likely it is to twist or bend.... support your axles!!!!!!!
Reply With Quote
  #17  
Old 05-07-2012, 09:16 AM
AndrewRemmers1902 AndrewRemmers1902 is offline
Senior Member
VEX # NAR
 
Join Date: Mar 2011
Location: Orlando, Florida
Posts: 660
Images: 2
Send a message via AIM to AndrewRemmers1902 Send a message via Skype™ to AndrewRemmers1902
Re: Has anyone ever used the 12 inch axles?

I hate how weak the 12 inch axles are. I will most likely not be using them.

- Andrew
__________________
North American Robotics: Founding Member
VEX 2012-2013 Sack Attack VEXU World Championship Excellence Award
VEX 2012-2013 Sack Attack VEXU World Championship Finalist
Reply With Quote
  #18  
Old 05-07-2012, 12:32 PM
IGC_Alinator's Avatar
IGC_Alinator IGC_Alinator is offline
Member
VEX # 1064A
 
Join Date: Feb 2012
Location: Omaha, NE
Posts: 57
Re: Has anyone ever used the 12 inch axles?

Quote:
Originally Posted by SweetMochi View Post
Necroed a 5 year old thread...holy moly.
Omega necro, to be sure. On topic, my team used a 12-inch axle this year on our lift.
__________________
____________

VEX #1064A
Nebraska Nerd Herd
Omaha North High Magnet School
Omaha, NE

2014 US National Champions with 400X and 1200
Reply With Quote
  #19  
Old 05-07-2012, 12:55 PM
Quazar's Avatar
Quazar Quazar is offline
Senior Member
 
Join Date: Aug 2007
Location: SF Bay Area
Posts: 1,231
Images: 16
Re: Has anyone ever used the 12 inch axles?

I use the 12" axles to store wheels and the larger gears. Keeps everything tidy.

The one time I used full 12" axles on a bot was to get power to a gripper at the end of a long arm. The long shaft allowed me to position the motor behind the shoulder of the arm to help as counter-weight. The gripper itself used a worm-drive, so having the shaft run through the arm worked perfectly.

Cheers,
- Dean
Reply With Quote
  #20  
Old 05-07-2012, 05:41 PM
Vex Mundi's Avatar
Vex Mundi Vex Mundi is offline
Senior Member
VEX # AURA
 
Join Date: Mar 2011
Location: Auckland, New Zealand
Posts: 534
Images: 1
Send a message via Skype™ to Vex Mundi
Re: Has anyone ever used the 12 inch axles?

Quote:
Originally Posted by meatboy123 View Post
the longer the axle the more likely it is to twist or bend.... support your axles!!!!!!!
I've forgotten most of the one mechanics of materials course I had to take, but I'm pretty certain that making an axle longer makes it more likely to bend but not more likely to twist. (Mechanical is not my specialisation.)

The angular displacement will be greater with the same torque, meaning mechanisms may be less precise, but the torque required for failure remains the same.
__________________
-Oliver | oliver.wilson@aura.org.nz || Aura Home | Our Photos | Our Videos
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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

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


All times are GMT -6. The time now is 05:33 AM.


VEX and VEX Robotics are trademarks or service marks of Innovation First International, Inc.
Copyright © 2002-2013. All Rights Reserved. VEX Robotics, Inc. is a subsidiary of Innovation First International, Inc.
All other product names/marks of others are the property of their respective owners.