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3mm milled chassis is stronger than a 4mm flat chassis.
How is that even possible?! the 3mm chassis is More flexible....For sure.... weaker!
But definitely... And i think.... the 4mm is be stronger and stiffer... For sure...and i already see in this tread that people also think like that!
3mm 7k alloy milled chassis is stronger than a 4mm 6k alloy flat chassis.
Voltage just responded to a question I had last night about a possible.full length skip plate they had mentioned. They said they decided against that and will be doing a upgraded cnc aluminum chassis in 2018. unfortunately no mention of 3mm or 4mm..Most milled aluminum parts are made from 7k-series aluminum alloys. Most stamped aluminum parts are made from 6k-series aluminum alloys. The 7k alloys are much stiffer, and therefore can be milled for weight savings and still be very strong. if you mill a 6k chassis, you will get a wet noodle.
What he probably meant -
But also worth point out - a 4mm 6k stamped flat chassis would be much cheaper then a milled 3mm 7k chassis.
Where is @gregmbrandt, or the @Voltage Hobbies? They could shed some light on this.
Most milled aluminum parts are made from 7k-series aluminum alloys. Most stamped aluminum parts are made from 6k-series aluminum alloys. The 7k alloys are much stiffer, and therefore can be milled for weight savings and still be very strong. if you mill a 6k chassis, you will get a wet noodle.
What he probably meant -
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Probably worth noting that those folks that bash that ThomasP or Rich Superdash will still need tower to tower braces - those 20' high 50' jumps are just plain brutal.
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I don't know what Al alloy people use for stamped products, but the comment about milled parts being mostly made from 7-series Al is not correct. 6061 and 7075 are both extremely common for making machined Al components across various industries. Its more a question of strength and cost requirements. And the difference between the two materials is not stiffness but strength. The modulus of elasticity of both materials is only very slightly different. However, when put into deformation, 6061-T6 will take a permanent set at a lower applied load than 7075-T6.
An interesting question is whether ARRMA aluminum parts are made from 6061-T6. My guess is that they are not.
I probably should let Rich speak for himself, but in a recent conversation with him, he mentioned that he's trying to move away from T-to-T braces and instead rely on uprated factory braces.
Voltage just responded to a question I had last night about a possible.full length skip plate they had mentioned. They said they decided against that and will be doing a upgraded cnc aluminum chassis in 2018. unfortunately no mention of 3mm or 4mm..
Now they are almost $30.At some point the weight factor, begins to over shadow the toughness factor. I'm not sure what you guys are doing to your cars, but my chassis is still straight, and they are only like $15 from and Ebay chop shop. Now that I said that I may as well order one, because my bent chassis is right around the corner.
The whole thing doesn't need to be 6mm even with a few raised channels above the 4mm deck could do it too. Not really adding too too much weight6mm? Dang bro how high you planning on launching that thing?
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