Go to Post Our opponents didn't know where our robot was going and neither did we! - ReapersRule [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 Rating: Thread Rating: 4 votes, 4.50 average. Display Modes
Prev Previous Post   Next Post Next
  #13   Spotlight this post!  
Unread 13-04-2011, 19:03
Mark Sheridan's Avatar
Mark Sheridan Mark Sheridan is offline
Head Mentor
FRC #3476 (Code Orange)
Team Role: Mentor
 
Join Date: Mar 2010
Rookie Year: 2002
Location: Irvine, CA
Posts: 561
Mark Sheridan has a reputation beyond reputeMark Sheridan has a reputation beyond reputeMark Sheridan has a reputation beyond reputeMark Sheridan has a reputation beyond reputeMark Sheridan has a reputation beyond reputeMark Sheridan has a reputation beyond reputeMark Sheridan has a reputation beyond reputeMark Sheridan has a reputation beyond reputeMark Sheridan has a reputation beyond reputeMark Sheridan has a reputation beyond reputeMark Sheridan has a reputation beyond repute
Re: Minibot climb rate

Hey Bill

Perhaps there is wheel slip in the beginning of the climb, thus prolonging the acceleration in the beginning of the climb. 0.83 lbs is a lot of friction for the minibot. My guess is the the friction is lower and the minibot can accelerate quicker, but slippage losses in the beginning of the climb slow down the time. It overcomes the slip when motor toque is lower and the rpm higher, thus higher up on the pole. From here is starts accelerating with its full potential. Overall it appears to accelerate the entire length. It would be like pushing (or distorting) the velocity curve to the right.

On our revised minibot, it appears to slip a bit in the beginning but accelerates quickly after it. We run a 2.5 pound minibot with a 3/8 od wheel. It climbs in about 1.5 seconds. We are defiantly running higher magnets forces then yours. By increasing the magnet force, you can prevent wheel slip and prevent the robot from flying off.

I will see if your numbers compare well to my calculator later tonight.
 


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 12:14.

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