pic: Team 842 Drive Train
 

Re: pic: Team 842 Drive Train
 

are those blue things chains?

Congrats on having a cad model of your chassis before building it! Looks great

Re: pic: Team 842 Drive Train
 

This looks like the composite material I-Beam again... am I right?

Re: pic: Team 842 Drive Train
 

http://images1.memegenerator.net/Ima...orName=yo-dawg

In all seriousness, looks like a solid drivetrain for this year. Fiberglass is strong stuff! I especially like the inward facing flanges on the C-channel - you should be able to mount an electronics board there.

Re: pic: Team 842 Drive Train
 

I'm not quite sure I understand the chain wrap.
Also, what's the gearing on the sprockets?
Looks like a solid drive train.:)

Re: pic: Team 842 Drive Train
 

The material is pultruded fiberglass, 3/16" thick. It will probably have lightening holes. John is new to autodesk and is still learning, He will get the chain right eventually...

Re: pic: Team 842 Drive Train
 

must....resist....hole saw!

:)

Re: pic: Team 842 Drive Train
 

I'm not completely familiar with Pultruded Fiberglass but we used fiberglass composite hockey sticks in 2007 and 2008 and putting any kind of hole or slot in it can be tricky. The fibers tend to get caught in whatever your using to cut with and the fibers can rip out clear down the length of the material.

Just a word of caution. I can't wait to check out a fiberglass frame in St. Louis!

Re: pic: Team 842 Drive Train
 

The Falcons have been using a hole saw to make pultruded fiberglass lighter for years, they know all about how to do it. The material does not separate like the hockey sticks you describe.

I just think it would make the robot look more "designed" if they didn't need to saw a bunch of holes in it.....

Re: pic: Team 842 Drive Train
 

That's what I figured but it might help some team searching for "fiberglass" at some point.

Re: pic: Team 842 Drive Train
 

It looks a lot better if you take out a bunch of larger holes in a straight line. A little less weight savings but it looks better.

Re: pic: Team 842 Drive Train
 

Why 6in wedgetop wheels? why not roughtop?:confused:

Re: pic: Team 842 Drive Train
 

Because it doesn't wear out so fast? and it provides just the right amount of traction, allowing easy turning and good pushing power?

But since it's just a cad model, the tread could be decided later, or different treads could be tried. We have used different tread on different wheels on the same robot most of the time.

Re: pic: Team 842 Drive Train
 

here is where the fiberglass is made
http://www.creativepultrusions.com/

Re: pic: Team 842 Drive Train
 

Wear out slower and allow easier turning, still grippy though