Go to Post If a kid was in FIRST and no one was around to see it, do they still get inspired? - Katie_UPS [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
  #3   Spotlight this post!  
Unread 20-03-2008, 22:52
EricVicenti EricVicenti is offline
Registered User
FRC #0008 (Paly Robotics)
Team Role: Alumni
 
Join Date: Nov 2007
Rookie Year: 2006
Location: Palo Alto Robotics
Posts: 91
EricVicenti has a spectacular aura aboutEricVicenti has a spectacular aura aboutEricVicenti has a spectacular aura about
Re: modified toughbox

Quote:
Originally Posted by gorrilla View Post
has anyone modified the gear ratios to make them faster?
if so what did you do?

because team 1557 was thinking about new trains and we wanted to change the gear ratios from 12-1 to something lower
Yes, we used a few gears from the toughbox and a few gears from the AM supershifters (both of which we had lying around, you can buy the individual gears online). We then simply CNC'd new front and back plates for use of the new gears to press the front and back plates into. Like the toughboxes, we used lexan for the motor side, and 1/4" aluminum for the mounting/output side.

The ultimate ratio was around 7.8:1, much higher than the toughboxes, and slightly higher than the high speed of the supershifters. They have worked perfectly without a hitch. They took an evening to design, 2 days or so to CNC 4 perfect plates, and another day to assemble and break in.

Do you have any specific questions?
__________________
 


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
Modified AndyMark Gearboxes Rob2713g Technical Discussion 4 18-02-2007 16:03
Problem with Modified Code Brigander Programming 14 31-01-2007 13:25
pic: A nikko RC car, modified Andy A. Extra Discussion 11 20-03-2005 11:59
can motors be modified ronnie_82 Motors 37 07-01-2003 08:09
can motors be modified ronnie_82 Rules/Strategy 2 18-12-2002 13:26


All times are GMT -5. The time now is 01:06.

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