Seconding the niceness of the Markforged printers. I've printed some fun
parts on them. If you're willing to ditch the continuous fiber placement
tech, you can run Markforged's short omnidirectional fiber mixed with nylon
in any FDM printer with a hardened nozzle.
The chopped fiber filament made for a pretty good ablative (compared to
expectations, not by any objective criteria) in some tests using it in
solid rocket nozzles and cases.
On Mon, Apr 16, 2018 at 11:57 AM Rick Wills <willsrw@xxxxxxxxx> wrote:
Check out the Markforged 3D printer that uses carbon fiber or fiberglass.
I’ve seen parts those printers make; very impressive. Also, I saw them in
a few structural tests. Definitely useful for aerospace applications.
Down side is the parts take longer to make compared to a regular 3D printer.
Rick Wills
*From:* arocket-bounce@xxxxxxxxxxxxx <arocket-bounce@xxxxxxxxxxxxx> *On
Behalf Of *gandalf@xxxxxxxxxxx
*Sent:* Monday, April 16, 2018 12:36 AM
*To:* arocket@xxxxxxxxxxxxx
*Subject:* [AR] Carbon Fiber Injection Molded parts
Greetings and Salutations:
Interesting article I found. BMW has figured out how to use injection
molding to make a motorcycle Carbon Fiber swingarm, allowing it to be made
in minutes rather than hours. I think that this has huge ramifications in
Aerospace:
https://www.topspeed.com/motorcycles/motorcycle-news/bmw-finds-a-cheaper-way-to-manufacture-carbon-fiber-ar180673.html
They could mold out large chunks of structure with high strength from what
the article implies. Of course they will have to prove out the strength of
the material.
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