using carbon fiber kit on lipos ?

[Jeremy Harris]

Will tin snips cut thru the stuff ? or a blade knife ? *( prior to epoxy )

Not really, the fibres just force the blades apart so that they can't cut. The same goes for scissors, even really sharp ones, or a craft knife that just sort of smears the fibres. You can cut the stuff with a carbide roller cutter, I believe, a thing that looks a bit like a pizza cutter, but I've never tried it. The only job I did with the stuff I used a borrowed pair of cordless scissors, that had carbide inserts in the blades. These were OK, but not that fast.

[kfong]

I took a torch to Kevlar, it burns as well as fiberglass. The fireproof stuff nomex was rated only to 700'C. and would not be much different. Carbon fiber was the only thing that didn't burn with a torch that I could mold. Kevlar can be cut on a CNC mill once molded. Since we are making these enclosures to perform much like the lipo bags, the heat output probably is less, and carbon fiber might be overkill, since we are basically smothering the fire. I'm using it for it's structural qualities and weight savings as well.

[Kingfish]

If epoxying the fibers, it will no longer breath and allow gas to pass... just a thought.

Epoxy the seams-only is what I meant

I have one of those electric shears with the self-sharpening carbide blade, and I used that to cut some of the fiber-reinforced material for my custom farings and battery covers. Here’s the one I purchased last year:


Yamata WDJ8-1 fabric cutter

Be very careful using these!

I also have an industrial walking-foot sewing machine, but finding aramid thread… I just thought epoxy for the seams might make better sense cos a needle might have the same problems going through Kevlar as would bullets

~KF

[nechaus]

iv order 3 meters of carbon fiber, 1 meter wide, cloth tape 50mm, 5L of resin + fast hardener as its getting cold here atm

http://www.carbonfiber.com.au waiting on my order to arrive, cost about $350 ..

Yeah im thinking ill now make the box first to size and just a bit bigger, then put padding inside and stuff it with lipos, make a cool lid with lcd panel for cell voltages.

Its really not that expensive for what im doing, i think this stuff will go along way, i think i could make atleast 3 battery boxxes or more.
im also going to use it to wrap around my rear forks on my new build, just to give it a carbon look..
making a whole bike would be a different story id imagine


The stuff will polish up nicely

Once i make it ill post some pics up on here, might give you guys ideas for something for yourself to build, who knows..

[nechaus]

id also like to make like a dashboard kind of thing for some of my ebikes..
something to hold switches, CA, lights, wiring and possibly a small battery to power lights.



im not to worried about lipo fires..
the most action i got from a lipo was when i charged a cell to 12ish volts, cant remember exact voltage, but i chopped it in half with one clean swing of a machete.
The smoke was really dense, could not tell if their were flames or not because of the smoke.