Go to Post Got Valentine's day present from wife before leaving for work. Non-contact IR thermometer, two unscuffed pairs of safety glasses for competitions, bag of York peppermint patties. She understands me. - Greg Young [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

 
 
 
Thread Tools Rate Thread Display Modes
Prev Previous Post   Next Post Next
  #24   Spotlight this post!  
Unread 26-05-2011, 12:36
Wayne TenBrink's Avatar
Wayne TenBrink Wayne TenBrink is offline
<< (2008 Game Piece)
FRC #1918 (NC Gears)
Team Role: Engineer
 
Join Date: Apr 2007
Rookie Year: 2006
Location: Fremont, MI, USA
Posts: 527
Wayne TenBrink has a reputation beyond reputeWayne TenBrink has a reputation beyond reputeWayne TenBrink has a reputation beyond reputeWayne TenBrink has a reputation beyond reputeWayne TenBrink has a reputation beyond reputeWayne TenBrink has a reputation beyond reputeWayne TenBrink has a reputation beyond reputeWayne TenBrink has a reputation beyond reputeWayne TenBrink has a reputation beyond reputeWayne TenBrink has a reputation beyond reputeWayne TenBrink has a reputation beyond repute
Re: 6WD vs 8WD

For Logomotion, we had an 8WD chassis with 6" wheels. The four at the corners were "kit" wheels. The four in the center were closely spaced pneumatics with adjustable drop. (I noticed in St. Louis that 330 used the same arrangement). We adjusted the tire pressure and center wheel drop so that the corners were about 1/16" off the floor on a hard surface, and had light contact on the carpet.

We were quite happy with the arrangement. It turned very well, since the pneumatic tires had better traction and higher loading than the corner wheels. It didn't rock or bounce during accelearation or turning since the corner tires were hard. During acceleration or in a pushing situation, all four pneumatics and one set of corner tires were in contact with the carpet. It was very difficult for others to push or turn us.

It was a good balance between the agility of a 6WD with center drop or omnis, and the pushing power of an 8WD with pneumatic tires.
__________________
NC Gears (Newaygo County Geeks Engineering Awesome Robotic Solutions)

FRC 1918 (Competing at St. Joseph and West MI in 2017)
FTC 6043 & 7911
 


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

Similar Threads
Thread Thread Starter Forum Replies Last Post
What does it take 6WD/8WD to be successful? TEE Technical Discussion 26 06-05-2010 08:30
pic: Rastogi 8wd Iteration 1.2 Akash Rastogi Extra Discussion 56 05-05-2010 15:16
pic: Sheetmetal 8wd Akash Rastogi Extra Discussion 16 02-05-2010 15:38
pic: Concept 8wd Drivetrain sdcantrell56 Technical Discussion 77 25-11-2008 23:05
8WD drivetrain? David Sherman Technical Discussion 16 09-04-2006 17:32


All times are GMT -5. The time now is 16:54.

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