Tim3

iTrader: (1)

I disagree, Titanium much more stronger.

Brian McGreevy

iTrader: (10)

Titanium has extremely high ultimate strength, about 50% higher than stainless steel, but its modulus (stiffness) is not all that much higher than aluminum for all that strength.

Aluminum: 72 GPa
Titanium: 114 GPa
304 SS: ~190-200 GPa

Given the cost, it's not really a viable thing for this application. It'll be the same weight for a similarly stiff chassis compared to aluminum, however, so you're just paying more for a chassis that's less likely to bend, but isn't stiffer than an aluminum counterpart (so no performance advantage).

Tim3

iTrader: (1)

I agree.. BUT ! it's stiffness is higher than aluminum buy a little.. I'll take that and the much more higher price of it.

If you don't wont it, sell it to me.

Roelof

Most people think 7075 aluminium is the best to have. Well... there is something better called 7068
https://en.wikipedia.org/wiki/7068_aluminium_alloy

bdmpastx

iTrader: (4)

Let's not forget about unobtainum for that matter.

Tim3

iTrader: (1)

Grate info !!

bertrandsv87

iTrader: (2)

GREAT info indeed !!!

Racermac73

iTrader: (3)

Titanium is considerably heavier than aluminum. Titanium is 60% the weight of steel and aluminum is 60% the weight of titanium.. Magnesium is what you want if you are looking for something stiffer and lighter than aluminum but it will break during a hard impact much like glass would

Racermac73

iTrader: (3)

On the subject of 7075T6 of course there are other alloys that look better on paper but 7075 has extremely high machinability properties and values that make it exceptional for what we do in the hobby.

xevias

iTrader: (1)

At what point do we start seeing 3D printed chassis and parts?

Would be so much easier to purchase a license or plan from the manufacture, then have the part printed at my local hobby shop.

So many financial benefits to this distribution model, but is the science there yet?

silden

iTrader: (12)

3d printing of parts sounds easy and cheap, but the opposite is true.
I ordered my self some prototype parts and that was really expensive and the fitment was not perfect. The reason for this is that a molded part will have close tolerances, but a 3D print will have a holes which are 3 to 5 tenth smaller as in the file. These tolerance comes from the resin and laser accuracy. The other down side is the durability of the parts. The resin is only melted layer by layer.

BTW the torsional stiffness of Titanium is not as high as Aluminum, that is the reason why a Bicycle with a Titanium frame feels more comfortable as one with an aluminum frame. Or a aluminum screw brakes and a titanium one bents.

B00t13g

iTrader: (9)

7068 is harder to machine, harder to obtain, in fact i'm not sure if it's even available in sheets. It is also more brittle and substantially more expensive. 7075-T6 is the right choice.

Exactly.

Roelof

If it is all about performance then a difficulty in how to machine should not be an issue.

gigaplex

iTrader: (2)

If you guys are so keen on an ultra stiff chassis at any price, why not try diamond? Just don't crash.

Tim3

iTrader: (1)

LOL

They say if your not caught, then its not cheating. Say, running below inspection weight or one extra cell. ' ' WEL ' ' I have never done that..

If running a diamond chaises plate would give me an edge, I probably would give it a go..