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Old 11-08-2006, 05:50 PM   #796
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Quote:
Originally Posted by Paul L
Gonzo, let me know what you find.

Guo Chean: I could be saying things that everyone knows, and i am not saying that your doing anything wrong atall. Here is exactly what i do when i build a fresh car: I start with a flat plate and i always make sure that it has not worped atall, then clean it and the chassis. chassis should be flat on the plate, then i assymble the car pece by pece checking the chassis on the flat plate every pece. with a new car it is easy to get twisted because when you put the brand new belts in it will pull things together because they will be tight when new. and when i put the top plates on the car it is important to hold the front and rear of the chassis to the plate when tightening the screws. this has always worked for me . thanks paul

i took everything off of the chassis and it still rocks from front to back and a little from rear left to right. idon't want to waste my time assembling the rest of the kit with a tweaked chassis.i'm going to email xray. what sucks is i spent $30 for fedex shipping to have it built for the weekend and it's not happening.
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Old 11-08-2006, 08:15 PM   #797
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What are you checking the chassis on? Try this, make sure the surface is PERFECTLY FLAT. I know when I check my car, I use a thick piece if glass. If I use my table or counter and even my Hudy setup board the car rocks to some degree. I know for a fact these items (and yes the Hudy board also) are NOT flat...thus the car rocks. The slab of glass is 100% flat and the car doesn't rock on it. I know it sounds odd...but it's something to try.

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Old 11-08-2006, 08:17 PM   #798
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Quote:
Originally Posted by gonzo416
i took everything off of the chassis and it still rocks from front to back and a little from rear left to right. idon't want to waste my time assembling the rest of the kit with a tweaked chassis.i'm going to email xray. what sucks is i spent $30 for fedex shipping to have it built for the weekend and it's not happening.
Build the car and race it this weekend. Xray will still send you a replacement if it's used. Besides it's not going to make a HUGE difference in the handling of the car. You could probably correct every bit of it with some simple spring preload adjustments.
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Old 11-08-2006, 08:27 PM   #799
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with pocketed chassis you can get bowing sometimes.the construction of the carbon fiber has alot to do with it.the way the panels are made,the layers are all based off the center core.for example,they lay the center core layer and then each and every layer is layed on top and below the center.in other words,mirrored.when they press the material to form the panel,the resin is heated and liquified.when it liquifies there is expansion.when it cools and hardens the resin contracts and the fibers do not which creates stress but being that the layers are mirrored off the center layer,they counterbalance eachother in a sense keeping the panel extremely flat.once you remove material from one side you relieve the stress from 1 side and it can buckle.every time i am doing a chassis that will require pocketing,i have it layed differently to accomodate this process.im not saying that hudy did not do this but it is possible for c/f to buckle when pocketing.
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Old 11-09-2006, 02:27 AM   #800
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I have to say, I am really impressed with this car. I ran my 007 kit today and I blew track record away. The car was just so nimble and easy to setup. It produces more rear traction than the normal t2, and is more consistant. Overall it just seems smoother and easier to drive. I'm veyr happy to be part of the RC America/Xray team this season. Thanks Ralph!

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Old 11-09-2006, 08:22 AM   #801
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Quote:
Originally Posted by protc3
with pocketed chassis you can get bowing sometimes.the construction of the carbon fiber has alot to do with it.the way the panels are made,the layers are all based off the center core.for example,they lay the center core layer and then each and every layer is layed on top and below the center.in other words,mirrored.when they press the material to form the panel,the resin is heated and liquified.when it liquifies there is expansion.when it cools and hardens the resin contracts and the fibers do not which creates stress but being that the layers are mirrored off the center layer,they counterbalance eachother in a sense keeping the panel extremely flat.once you remove material from one side you relieve the stress from 1 side and it can buckle.every time i am doing a chassis that will require pocketing,i have it layed differently to accomodate this process.im not saying that hudy did not do this but it is possible for c/f to buckle when pocketing.


Jason, will you be offering a 007 chasssis any time soon ?
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Old 11-09-2006, 08:41 AM   #802
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Quote:
Originally Posted by jag88
Jason, will you be offering a 007 chasssis any time soon ?
The 007 kit is in the works.

As of now, it will be a 3mm bottom plate and 3mm top decks.
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Old 11-09-2006, 11:56 AM   #803
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Quote:
Originally Posted by protc3
with pocketed chassis you can get bowing sometimes.the construction of the carbon fiber has alot to do with it.the way the panels are made,the layers are all based off the center core.for example,they lay the center core layer and then each and every layer is layed on top and below the center.in other words,mirrored.when they press the material to form the panel,the resin is heated and liquified.when it liquifies there is expansion.when it cools and hardens the resin contracts and the fibers do not which creates stress but being that the layers are mirrored off the center layer,they counterbalance eachother in a sense keeping the panel extremely flat.once you remove material from one side you relieve the stress from 1 side and it can buckle.every time i am doing a chassis that will require pocketing,i have it layed differently to accomodate this process.im not saying that hudy did not do this but it is possible for c/f to buckle when pocketing.
This is XRAY'S reply:


Dear Sir

Thank you for your email and your interest in Xray products. The
chassis is
manufactured from original graphite panels which are guaranteed by the
manufacturer to be within certain tolerance and flateness. The graphite
material we have been using is some of the world's best and most
precise
manufacturers. This means that the chassis is also manufacturer within
certain manufacturing tolerance based on the material. Some kind of
unevenness of the chassis will not have any negative influence or
impact.
Important is that after mounting the bulkheads on the chassis and to
the top
deck when you place the car on the droop gauges under front suspension
and
under rear suspensions that the car sits in flat on these droop gauges.
Please see this tech tip where you can read how to put the car on the
droop
gauges
(http://www.teamxray.com/teamxray/pro...?prod_id=1513).
After
production every chassis is individually controlled and inspected for
the
tweak and thus all chassis which are getting into the kits are for sure
correct and good. In extreme cases when the chassis is extremely
tweaked
more than 2mm we will of course replace any such chassis under
warranty. If
you believe you have some deffective chassis we will have no problem to
inspect it and in case it will be found defective it will be replaced.

I suggest that you first check if the chassis sits flatly on the droop
gauges, if yes, then you do not need to worry at all.

If I can help you in any other way just let us know. We will be more
than
happy to assist you or help you out.
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Old 11-09-2006, 04:15 PM   #804
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according to the tolerence they are following,your chassis will be fine.i dont think i have ever seen one buckle more than 2mm with that little pocketing.i guess you can try it out and see if it pulls straight when its assembled.personally i try to keep it flat within .25 mm worst case senario.it usually stays dead flat.then again,the component grade carbon fiber is probably more prone to bowing compared to the quasi isotropic.
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Old 11-09-2006, 04:16 PM   #805
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i do however agree that the panels do come extremely flat.its what machining is done on them that can create the variance.
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Old 11-09-2006, 04:26 PM   #806
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there is at least 1mm play
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Old 11-09-2006, 04:30 PM   #807
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after assembly?
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Old 11-09-2006, 05:19 PM   #808
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Quote:
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after assembly?

i'm going to finish assembly tomorrow
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Old 11-09-2006, 05:35 PM   #809
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hope it works out for you okay buddy
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Old 11-09-2006, 06:31 PM   #810
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Quote:
Originally Posted by gonzo416
i'm going to finish assembly tomorrow

so did you get any replacement for that? i not even get any reply after i send email to rc america
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