Go to Post Adaptability is the key folks. Your job will not be the same 10 years from now (when I retire), or 20 years or 30 years from now. The tools and systems you use will change, and you must be able to adapt along with them. - Bill Moore [more]
Home
Go Back   Chief Delphi > ChiefDelphi.com Website > Extra Discussion
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Reply
 
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 27-09-2011, 13:47
sdcantrell56's Avatar
sdcantrell56 sdcantrell56 is offline
Registered User
AKA: Sean
FRC #2415 (Wired Cats)
Team Role: Mentor
 
Join Date: Jan 2006
Rookie Year: 2004
Location: Atlanta, GA
Posts: 1,038
sdcantrell56 has a reputation beyond reputesdcantrell56 has a reputation beyond reputesdcantrell56 has a reputation beyond reputesdcantrell56 has a reputation beyond reputesdcantrell56 has a reputation beyond reputesdcantrell56 has a reputation beyond reputesdcantrell56 has a reputation beyond reputesdcantrell56 has a reputation beyond reputesdcantrell56 has a reputation beyond reputesdcantrell56 has a reputation beyond reputesdcantrell56 has a reputation beyond repute
Re: pic: 2 Speed Switching Module

Quote:
Originally Posted by Brandon Holley View Post
I think what Sean was saying in one way or another, is that you don't need to prototype to get a good idea of what to expect in this particular scenario. Prototyping is certainly one way to do it, but the problem with prototypes is that they get expensive quickly. If you go on to study engineering, and eventually become an engineer, you will quickly learn that saving resources (time, money, machines, etc.) is always something to consider.

Going back to your original problem... A 135 lb robot (120 lb + battery, etc) can only exert a given force on the ground through whatever number of contact points it will have. If you have a good estimate on the coefficient of friction between the wheel and the carpet, you can easily estimate what the ideal gearing should be; no prototyping required.

-Brando
That's exactly what I was saying. The whole purpose of engineering and math and theory is so you don't have to experiment to determine if basic systems are going to work or work well. If you want to throw away money on a less than optimized prototype then no one will stop you but if you take the literally 3 minutes required to run basic calculations to determine your traction limited wheel speed you will save precious time in the long run and end up with a much better performing module.
__________________

Mentor 2415
Reply With Quote
Reply


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 07:32.

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