View Single Post
  #5   Spotlight this post!  
Unread 11-02-2006, 10:33
Tom Bottiglieri Tom Bottiglieri is offline
Registered User
FRC #0254 (The Cheesy Poofs)
Team Role: Engineer
 
Join Date: Jan 2004
Rookie Year: 2003
Location: San Francisco, CA
Posts: 3,186
Tom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond repute
Re: pic: 195 Drive Base

Quote:
Originally Posted by sanddrag
Absolutely beautiful. Looks like a 4 speed with plastic gearbox plates. What is the frame made out of? How much does it currently weigh in this configuration? What was your reasoning for going with tracks/belts?
As Alex said, this is a the 2-speed version of the plastic 4-speed blind shifter. The 4-speed worked very well for us last year, so we decided to use the same basic design again, we just didn't need all 4 speeds. High: 10.5 ft/s Low: 4.5 ft/s

The frame is made out of 9 ply Baltic birch plywood. That stuff is amazing. It has a strength:weight ratio that is out of this world. And its cheap, easy to make, and makes electronics mounting a breeze.

With no batteries, this frame weighs 74 pounds.

We have been using belts since before I was even on the team. I suppose I can say we've got it down to somewhat of a science.