"E90M3" (e90m3)
12/13/2018 at 08:55 • Filed to: None
5
8|
"E90M3" (e90m3)
12/13/2018 at 08:55 • Filed to: None | 5
| 8 |
It’s a little rough, but the nylon with chopped carbon fiber in it is certainly strong. Makes a cool little desk piece. !!!error: Indecipherable SUB-paragraph formatting!!!
cletus44 aka Clayton Seams
> E90M3
12/13/2018 at 08:56 |
|
Wow cool how big is it? If you could make other engine blocks, I’d happily buy one from you.
TheRealBicycleBuck
> E90M3
12/13/2018 at 09:21 |
|
I read an article about chopped CF. They were saying that it wasn’t as strong as the same part CF fabric, but it’s supposed to be a lot more versatile and easier/cheaper to work with. They suggested that it would replace the normal layup process, making CF composites more common and a lot less expensive.
What’s your take on it?
user314
> E90M3
12/13/2018 at 09:31 |
|
|
E90M3
> cletus44 aka Clayton Seams
12/13/2018 at 10:17 |
|
It’s 15% of the size, would love to do that, but since I’m pretty sure my company wouldn’t be too happy about it, won’t be able to.
|
E90M3
> TheRealBicycleBuck
12/13/2018 at 10:18 |
|
Seems to be pretty strong. The MEs pressed a piece they made with 37% infill and it stood up to 2500 PSI before it failed. It also seems somewhat flexible, which can be a good thing.
tromoly
> TheRealBicycleBuck
12/13/2018 at 10:48 |
|
It can’t strengthen layer bonding because that’s not how FDM works, you’re still relying on adhesion of plastic between layers for strength. It’ll strengthen each individual continuous layer though, you’ll get much better strength in two directions and you’ll need to take your object printing orientation into account more than usual to really see a benefit from the filament.
Downside is it can wear out nozzles quicker due to forcing a harder substance through the openings, some people are experimenting with Ruby tipped nozzles and other harder materials to try making more wear-resistant nozzles.
|
TheRealBicycleBuck
> tromoly
12/13/2018 at 11:02 |
|
Neat. I was wondering about adhesion between layers. I figured that the CF wouldn’t extend between the layers, making that the weakest part. I thought that the primary advantage of CF weave is the strength in tension, so I wasn’t sure how chopped CF would be a big advantage unless the entire part was injection molded. Really, I was surprised that they are using it in 3D printing at all.
nerd_racing
> E90M3
12/13/2018 at 11:14 |
|
I’m toying with the idea of getting a Creality CR10 to do big prints. Might have to do an engine if I ever get one.