CrealityOnlineStore has its
3-Pack 1kg 1.75mm Creality Hyper PETG-CF 3D Printer Filament (choose 3 colors) on sale for $35.97 - 5% when you apply discount code
3-Pk 1kg 1.75mm Creality Hyper PETG-CF 3D Printer Filament (various) at checkout =
$34.18. Shipping is $3.99, or shipping is free on orders $99+.
Thanks to community member
n0p for sharing this deal.
Note: Use the drop-down menu to select a color for each spool. You can mix and match colors.
Available Colors:
- Danxia Red - Bold and vibrant
- Ancient Wood Green - Natural earthy tone
- Caramel Brown Coffee - Rich warm brown
- Phantom Purple - Deep mysterious purple
- Dusk Blue - Elegant twilight blue
- Tea Brown - Classic sophisticated brown
- Night Gray - Sleek modern gray
Features:
- Carbon Fiber Reinforced - Enhanced strength and rigidity for functional parts
- Superior Layer Adhesion - Excellent bonding between layers for durable prints
- Low Warping - Minimal shrinkage ensures dimensional accuracy
- Smooth Matte Finish - Professional appearance with unique carbon fiber texture
- Easy to Print - User-friendly material suitable for most FDM printers
- Chemical Resistant - Withstands exposure to various chemicals and solvents
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A YouTube channel has also gone through a lot of testing and inspection and found that the plastic will shrink away from the cf particles, leaving tiny air voids. The testing he did also showed that CF filament is actually weaker than non-cf filament (at least in PLA).
In short, it sounds good on paper, but is a complete waste of money and time over standard filaments.
PLA is already really stiff, so CF doesn't do much structurally for PLA, it's just cosmetic.
However PETG is comparatively pliable, exactly when a rigid composite additive makes sense.
It also makes filaments prone to warping easier to print since it improves dimensional stability.
I print PETG-CF and ASA-CF, both with a 0.4 nozzle, and have never had a clog. Also print a bunch of ABS-GF, same nozzle, no clogs. It hides layer lines better and prevents warping, especially during annealing. I've printed large pieces, like 290 long x 310 wide x 150 tall and without a additive it will want to pull up on the corners. Using CF/GF prevents that. With that said CF DOES make the part overall weaker. It's a trade off, the part is slightly weaker but is more dimensionaly accurate and less prone to warping.
I wouldn't bother using CF in PLA....it doesn't make sense as you're not gaining much as it doesn't easily warp. If you want a better surface finish just use Matte PLA and smaller layer height.
Comparing adding rebar to concrete to CF to filament is also not the right analogy. It's more like adding gravel to concrete which in the right ratio does make the concrete stronger then not having the gravel.
tl;dr: CF makes the filament weaker overall but does increase accurate dimensionallity and reduce warping. It also hides layer lines better.
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A YouTube channel has also gone through a lot of testing and inspection and found that the plastic will shrink away from the cf particles, leaving tiny air voids. The testing he did also showed that CF filament is actually weaker than non-cf filament (at least in PLA).
In short, it sounds good on paper, but is a complete waste of money and time over standard filaments.
A YouTube channel has also gone through a lot of testing and inspection and found that the plastic will shrink away from the cf particles, leaving tiny air voids. The testing he did also showed that CF filament is actually weaker than non-cf filament (at least in PLA).
In short, it sounds good on paper, but is a complete waste of money and time over standard filaments.
Actually picked up a couple of these because they're really nice earth tones, and the petg-cf looks like it has a much more matte metallic like finish according to the Al Gore Network.
Agreed you don't buy it for any increase in strength but you do get a significant increase in both sniffness and temperature tolerance. I suspect the abrasion characteristics will be better too if you want to make some janky gears without going full engineering.
I buy it on sale & am very happy with my supply.
Agree that it is more likely to clog though. đź‘Ť
A YouTube channel has also gone through a lot of testing and inspection and found that the plastic will shrink away from the cf particles, leaving tiny air voids. The testing he did also showed that CF filament is actually weaker than non-cf filament (at least in PLA).
In short, it sounds good on paper, but is a complete waste of money and time over standard filaments.
There is no reason to assume every filament has the same material properties as PLA.
PLA is already really stiff, so CF doesn't do much structurally for PLA, it's just cosmetic.
However PETG is comparatively pliable, exactly when a rigid composite additive makes sense.
It also makes filaments prone to warping easier to print since it improves dimensional stability.
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The fact is, we carefully arrange the rebar rods before pouring concrete over them for a reason. The arrangement of the rebar is what strengthens concrete, not the mere presence of rebar. On top of that, the concrete sticks to the rebar; the rebar rods have ridges for the concrete to anchor on.
But with most cf filament, you just wind up with random cf threads throughout the printed layers, not a structural arrangement. On top of that, some common filament types(like PLA) don't adhere to the CF threads, so you wind up with bubbles in the printed part, and the cf threads sitting in the print, but not physically bonded to the plastic. Since they're smooth, there's nothing really providing structural support there. In fact, by causing voids to form in the print, you're actually reducing the strength, not increasing it.
Someone tested this extensively, you can see it here:
https://youtube.com/playlist?list..
There are some filament manufacturers that sell "carbon core" filament, which aligns the CF threads in the center of the filament, which is a far better arrangement than just random CF threads scattered throughout the filament. It also protects your hot end nozzle, as the CF is surrounded by a plastic sheath.
You can see a video of that type of filament being tested here:
https://youtu.be/m7JAOi4JnBs
I will note that these videos are testing PLA-CF, it is possible that PETG-CF works better.
I print PETG-CF and ASA-CF, both with a 0.4 nozzle, and have never had a clog. Also print a bunch of ABS-GF, same nozzle, no clogs. It hides layer lines better and prevents warping, especially during annealing. I've printed large pieces, like 290 long x 310 wide x 150 tall and without a additive it will want to pull up on the corners. Using CF/GF prevents that. With that said CF DOES make the part overall weaker. It's a trade off, the part is slightly weaker but is more dimensionaly accurate and less prone to warping.
I wouldn't bother using CF in PLA....it doesn't make sense as you're not gaining much as it doesn't easily warp. If you want a better surface finish just use Matte PLA and smaller layer height.
Comparing adding rebar to concrete to CF to filament is also not the right analogy. It's more like adding gravel to concrete which in the right ratio does make the concrete stronger then not having the gravel.
tl;dr: CF makes the filament weaker overall but does increase accurate dimensionallity and reduce warping. It also hides layer lines better.
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