CF doors by Carbon Microsystem

[Carbon Microsystem]

Weight of front carbon doors for E46 sedan/touring

With Metal crash bars = 4.7kg
Without Metal crash bars = 3.45kg

[Carbon Microsystem]

Another BMW E92 with our carbon doors

[Carbon Microsystem]

Any plans for the E86 chassis?

If there are three or more clients for these doors, then we can do it. Otherwise, it is not economically profitable.

[maupineda]

Any plans for the E86 chassis?

[Carbon Microsystem]

We have finished all the internal elements of the doors, now we can begin the final assembly.

[Carbon Microsystem]

Some more photos

[George Hill]

And I’m guessing the destination of those doors isn’t Texas because of the lack of impact bars

👀

These aren't the "final" door, just the inner and outer sitting together. 😎

[Bry5on]

Carbon fiber doors for BMW E46 Touring.

Looking good! Maybe an odd question but would it be more or less work to reuse the steel inner skin with the carbon outer skin? Given all the fine detail work on the inner skin.

And I’m guessing the destination of those doors isn’t Texas because of the lack of impact bars

[bigjae46]

Carbon fiber doors for BMW E46 Touring.

Outstanding! Drilling all of those holes and cutting those openings...must be a massive MF'er! 🤣

[Carbon Microsystem]

Carbon fiber doors for BMW E46 Touring.

[bigjae46]

Adding a core could also make it much stronger in a side impact, but that’s harder to prove/quantify.

A core would make the part stiffer and will deflect less, not necessarily stronger. Once the part yields it will lose its strength faster. A single side impact is one thing. But if there is a side impact which causes the car to hit a guard rail, there will be no strength left in the door structure when it hits the guard rail. Kevlar will help to keep the structure together for follow on impacts.

[Carbon Microsystem]

The rear carbon doors for the BMW E46 Touring are already partially ready.

[Bry5on]

You guys move quickly!

[Carbon Microsystem]

The front carbon doors for the E46 Sedan/Touring are almost ready.

[Carbon Microsystem]

The difference in weight (Kg) between a metal door and a carbon door for a BMW E46 Sedan/Touring.

The final weight of the carbon door will be slightly higher, since all the internal elements have not yet been installed.