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a "sandwiched" chassis?

Posted: Fri Mar 04, 2011 12:03 am
by TZona
black top and bottom white center

Re: a "sandwiched" chassis?

Posted: Fri Mar 04, 2011 12:11 am
by ROH73
It's likely a foam core between two sheets of carbon fiber; kind of a budget graphite chassis from BITD.

Re: a "sandwiched" chassis?

Posted: Fri Mar 04, 2011 12:42 am
by Lowgear
Foam chassis huh? Throw some paddles on it, and drive that bad boy in the pool! :lol:

Re: a "sandwiched" chassis?

Posted: Fri Mar 04, 2011 3:13 am
by esaresky75
BITD?

Re: a "sandwiched" chassis?

Posted: Fri Mar 04, 2011 8:24 am
by ROH73
back in the day

Re: a "sandwiched" chassis?

Posted: Fri Mar 04, 2011 9:20 am
by tucker330
In the 80's my first "graphite" chassis was a plastic bottom, foam center, with a thin sheat of carbon fiber for the top.

Re: a "sandwiched" chassis?

Posted: Fri Mar 04, 2011 10:19 am
by ROH73
There were some crazy variations available. One had a plywood type core with carbon fiber on the top and bottom. I bought an Optima a couple of years ago with one of those on it. The chassis flexes so much, regular G-10 fiberglass would have been better and cheaper. But, hey, it was 2/3 graphite, and that meant a lot in the 80s :D .

Re: a "sandwiched" chassis?

Posted: Fri Mar 04, 2011 12:50 pm
by Mr. ED
It's not foam.
Graphite is a weave of carbon fibers held in place by resin (epoxy), G10 is the same resin but with glassfiber. The center is G10 and since it use the same resin the bonding between the glassfiber and carbon fiber layers is very good.

Losi, composite craft and others all used this technique to produce higly stiff yet less costly chassis.

Re: a "sandwiched" chassis?

Posted: Fri Mar 04, 2011 1:03 pm
by ROH73
There are both glass fiber core chassis and foam core chassis. The foam version is thicker and the center section is very white and very noticeable. In this case, I would suspect it's a foam core chassis. The glass fiber version doesn't stand out that much.

Re: a "sandwiched" chassis?

Posted: Fri Mar 04, 2011 10:02 pm
by TZona
i think it was pretty white, i'll snap a pic and post

Re: a "sandwiched" chassis?

Posted: Sat Mar 05, 2011 1:36 am
by TZona
Image

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Image

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matching towers front and rear, rear has "a touch of class" look like hot trick stuff. ring any bells?

Re: a "sandwiched" chassis?

Posted: Sat Mar 05, 2011 5:23 am
by Mr. ED
That does look like a thicker core than what I've seen. How hard is that foam? I suppose it's softer than fiberglass ... kind of seems not-the-best choice for countersunk screws.

Re: a "sandwiched" chassis?

Posted: Sat Mar 05, 2011 8:57 am
by ROH73
Yep, that's a foam core. I don't know who made it. The foam is pretty stiff and yes, you had to be careful with the countersunk screws.

Re: a "sandwiched" chassis?

Posted: Sat Mar 05, 2011 9:08 am
by scr8p
raceco

Re: a "sandwiched" chassis?

Posted: Sun Mar 06, 2011 10:14 pm
by BigPun76
My TQ10 has a similar chassis. I thought it was foam too when I first got the thing. Haven't looked at it in ages; I'll have to dig it out when I go back to my parent's house. I do remember the CF "splinters" I always had to dig out of my hands though! No fun! :lol: