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Old 01-29-2004, 07:05 PM   #7771
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See

ooops, forgot pic...
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Old 01-29-2004, 07:10 PM   #7772
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Chassis & Top Deck
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Old 01-29-2004, 07:10 PM   #7773
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Car put together
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Old 01-29-2004, 07:11 PM   #7774
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I've seen those pics I think in the other thread before, but it really just looks heavy to me... I think the CGM will be the answer for the SD owners looking for a stiff car.
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Old 01-29-2004, 07:13 PM   #7775
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i think the problem with the yokomo cars is that they cut the carbon fiber in the wrong direction.carbon fiber is directional(when layed at 0,90,and 45 degrees).it is stiff as a brick in one direction and flexable the other way.you need to base your design on that and i have a mr4tc and the chassis is not cut right.


im all scrubbed up
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Old 01-29-2004, 07:14 PM   #7776
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Maybe, definitely worth a look for all SD owners though.
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Old 01-29-2004, 07:14 PM   #7777
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Quote:
Originally posted by protc3
i think the problem with the yokomo cars is that they cut the carbon fiber in the wrong direction.carbon fiber is directional(when layed at 0,90,and 45 degrees).it is stiff as a brick in one direction and flexable the other way.you need to base your design on that and i have a mr4tc and the chassis is not cut right.


im all scrubbed up
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Actually Yokomo doesnt use any 45 degree fibers in their chassis, this is why there is so much torsional flex in the chassis.
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Old 01-29-2004, 07:15 PM   #7778
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Jason, that's the problem with almost ALL (production) double deck cars out right now.
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Old 01-29-2004, 07:16 PM   #7779
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Quote:
Originally posted by Brian McGreevy
Maybe, definitely worth a look for all SD owners though.
I dont want to turn this into a SD thread when I was interested in the design of the TC3, but maybe you can relay back to warpspeed that it would be a good idea to countersink the upper deck, this will reduce the likelyhood of the chassis twist.
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Old 01-29-2004, 07:23 PM   #7780
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they use 0,90?wow,i am doing a sd chassis kit and i couldnt think of anthing but that they cut it the wrong way because i even made an identical upper brace and it was stiffer with my brace.wow,that took me by surprise.thanks for the info randman.

brian,is that what extreme and irs use?
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Old 01-29-2004, 07:25 PM   #7781
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Yeah, and they use lower quality two weave CF at that.
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Old 01-29-2004, 07:29 PM   #7782
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Quote:
Originally posted by protc3
they use 0,90?wow,i am doing a sd chassis kit and i couldnt think of anthing but that they cut it the wrong way because i even made an identical upper brace and it was stiffer with my brace.wow,that took me by surprise.thanks for the info randman.

brian,is that what extreme and irs use?
I was surprized as well. I took my chassis to DA graphite who used to supply some of the RC manufacturers with their graphite, and he showed me how to look at the weave, and sure enough, there was nothing diagonal.
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Old 01-29-2004, 07:40 PM   #7783
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interesting.i have to admit,i didnt even think to check it.i never would have expected that.
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Old 01-29-2004, 07:41 PM   #7784
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so it does'nt matter if the chassis is 2.5mm or 3mm
what matters is how its cut to get the best strength
or how stiff its going to be?

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Old 01-29-2004, 07:43 PM   #7785
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No it does matter. A 3 mm chassis with the good CF will be a bit stiffer than 2.5 mm of the same quality stuff. But what we're saying is the triple weave CF in 2.5 will be stiffer than 3 mm stuff, and much stiffer than 2.5 mm stuff of what most companies use, just because of that extra weave.
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