shiny!!!!

[quietfly]

any one see this yet ?


http://www.countryalloyworks.com/db2/00130/countryalloyworks.com/_uimages/proto-Kv.JPG

i needed to turn down the contrast on my monitors to look at it.


i'm not thrilled with the arm design but the chassis is a good start.

-Chris

[alfred]

Nice but dont you think thats just way too much metal. What is it made out of alloy, or aluminum. It is nice though.....:D

[quietfly]

honestly with the brushless wieght is not an issue, but for extreme bashing duribility will be an issue for CF, so aluminum makes a good choice.

[alfred]

i like it though,,,,nice find man.....but dang Mothers polish would really make that chassis glare...:D

[quietfly]

on second thought racing that outside inthe summer could be fun. the first lap you could blind everyone in the driver stand. then use your lead to coast the rest of the race.

:)

unfortunately that will only work one for one lap untill the truck gets dirty

[alfred]

lol now thats a good one......How much do you think the chassis will go for....A pretty penny im sure....:D

[quietfly]

i'm more concerned with what grade it is. i want 2024 or 7075
I'll also trim the heck out of it to lighten it up some. but i'm guessing around 120, if it comes with all the arms and hex's

[Mondo]

Originally posted by quietfly
honestly with the brushless wieght is not an issue, but for extreme bashing duribility will be an issue for CF, so aluminum makes a good choice.

As a MAXX owner I take a different stance.
Alloy is light, rigid and cosmetically appealing, however it has a tendancy to scar (chunks taken out of it) and hide damage,
If you bend the chassis by 0.5mm it will affect handling but you will not be able to see the damage visually.

It's just not practical for an off road / basher truck. I recently bought the FT billet kit and I am not going to fit the alloy suspension arms for this very reason.
For a road runner in a wide open area like a parking lot, alloy is fantastic, for a shelf queen even better.

CF is light and rigid, but it does not bend as it's not malleable like aluminum. It does flex, but will always retain its original shape - as in flat...

[morati]

Originally posted by Mondo
As a MAXX owner I take a different stance.
Alloy is light, rigid and cosmetically appealing, however it has a tendancy to scar (chunks taken out of it) and hide damage,
If you bend the chassis by 0.5mm it will affect handling but you will not be able to see the damage visually.

It's just not practical for an off road / basher truck. I recently bought the FT billet kit and I am not going to fit the alloy suspension arms for this very reason.
For a road runner in a wide open area like a parking lot, alloy is fantastic, for a shelf queen even better.

CF is light and rigid, but it does not bend as it's not malleable like aluminum. It does flex, but will always retain its original shape - as in flat... Gotta agree with Mondo on this one. Had one of these chassis for my Mini T, and after bending it, it was never the same again. I'll stick to CF and plastic. Sure does look nice though!

[patcollins]

Wow

FYI

All usable aluminum for RC is an alloy. An alloy is simply a combination of more than one metals. Bronze, Steel, and Solder are all alloys.

[quietfly]

Originally posted by Mondo
As a MAXX owner I take a different stance.
Alloy is light, rigid and cosmetically appealing, however it has a tendancy to scar (chunks taken out of it) and hide damage,
If you bend the chassis by 0.5mm it will affect handling but you will not be able to see the damage visually.

It's just not practical for an off road / basher truck. I recently bought the FT billet kit and I am not going to fit the alloy suspension arms for this very reason.
For a road runner in a wide open area like a parking lot, alloy is fantastic, for a shelf queen even better.

CF is light and rigid, but it does not bend as it's not malleable like aluminum. It does flex, but will always retain its original shape - as in flat...

ok the most common misconception is that all aluminum alloys have similar principals, my original quote said that I was concerned what grade alloy they use,
Originally posted by Quietfly

i'm more concerned with what grade it is. i want 2024 or 7075
I'll also trim the heck out of it to lighten it up some. but I’m guessing around 120, if it comes with all the arms and hex's

As aluminum goes the 7000 (mixed with zinc) series is the stiffest, strongest grade (at nominal temps it is stronger than most common grades of steel at 1/3 of the weight). Due to its strength, it is not readily formable and lends itself to be used for machined components and straight suspension pieces in most cases it will shatter before it bends.

The 2000 series (mixed with copper) is the next stiffest grade.

Either of these (7000 or 2000 series aluminum ) have a Tensile Yield Strength of over 11000 psi.

Both of them are used in the aerospace industry because they don't bend. 2024 is used mostly on aircraft landing gear. 7075 is used for constant stress bearing parts like wing braces and turbine brackets.

When being used with in thier tolerances neither of these will bend.


What Carbon fiber has over all aluminum is weight savings. What carbon fiber has over the most common types of aluminum alloys (5000 and 6000 series) is weight savings and rigidity.

I’ll take high end aluminum alloys ANY day over carbon fiber in an application where the weight delta is not a factor. (meaning I can add more battery to compensate)
-Chris

This is not mean to be a flame, and I hope by all means it is not taken as one. Instead it is just me venting out at a common misconception. I spend a lot of time working for GE aerospace on some “ultra-alloys” as they call them, and you’d be amazed at some of the stuff they use aluminum (or something that started as aluminum) for.

[quietfly]

Originally posted by patcollins
Wow

FYI

All usable aluminum for RC is an alloy. An alloy is simply a combination of more than one metals. Bronze, Steel, and Solder are all alloys.

yup and actuallly raw aluminum by it self is very soft and a good eletrical conductor.

[alfred]

Your not going to start a war man,,,,,.....Now thats some good information you posted. Glad your not keeping all the knowledge to yourself....:D

[patcollins]

Back 20 years ago or so 2024 was all that was used for RC and then they began using 6061 I always wondered why the switch was made.

I know this isn't really a metalurigical discussion but for references mild steel has a yield of around 30,000 psi and the really good stuff like what is used in the connecting rods of your cars engine has a yield of around 180,000 psi

[quietfly]

Originally posted by patcollins
Back 20 years ago or so 2024 was all that was used for RC and then they began using 6010 I always wondered why the switch was made.

I know this isn't really a metalurigical discussion but for references mild steel has a yield of around 30,000 psi and the really good stuff like what is used in the connecting rods of your cars engine has a yield of around 180,000 psi

the reason was cost, once electric companies got into the business of making aluminum 5000 and 6000 series stuff became easy to aquire and alot less work with.


-chris

[Mondo]

Guys, thanks, this Thread is awesome.
It's this kind of info that's hard to come by and even if it does turn into a metalurgical discussion, it's all knowledge and we all like (and often need) a little more knowledge.