ColorFabb XT-CF20 Carbon Fiber Filament
- nilrog
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Re: ColorFabb XT-CF20 Carbon Fiber Filament
Yup, plastic is plastic even if it is injection molded.
Thanks for your input. It's always nice to get input from someone who has tried what you want to do
Thanks for your input. It's always nice to get input from someone who has tried what you want to do
- Amedee
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Re: ColorFabb XT-CF20 Carbon Fiber Filament
Jan L. A. van de Snepscheut wrote:In theory, there is no difference between theory and practice. But, in practice, there is.
- LePaul
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Re: ColorFabb XT-CF20 Carbon Fiber Filament
Amedee wrote:Yes...
I do have a couple of 3D printed parts on the 1:5 scale car, but no critical pieces (cable holders, ...) and that's fine.
On the 1:10th I printed some spares (in XT), they do brake, but the injection-molded original parts are breaking as well
For things like spacers etc, it does the job...
XT-CF20 Vs. Carbon
What's the sample on the right? I see the left is CF20
- Amedee
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Re: ColorFabb XT-CF20 Carbon Fiber Filament
A Euro coin
In the center it is a milled carbon plate -- Wanted to compare 'real' carbon parts with printed ones
In the center it is a milled carbon plate -- Wanted to compare 'real' carbon parts with printed ones
- LePaul
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Re: ColorFabb XT-CF20 Carbon Fiber Filament
Money laundering!
No no....the two printed pieces
No no....the two printed pieces
- Amedee
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Re: ColorFabb XT-CF20 Carbon Fiber Filament
read the small prints
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Re: ColorFabb XT-CF20 Carbon Fiber Filament
So, the XT-CF20 is not about being stronger (higher load before breaking). It is not stronger in that sense than pure XT.
What Colorfabb claims is that it is more rigid (bends less under a certain load, higher flexural modulus).
We did some comparisons with torque wrenches as I mentioned.
ABS and XT (PETG) gives about 0.3 Nm of torque and PLA about 0.5 Nm, which corresponds fairly well to the flexural modulus of these plastics.
The XT-CF20 gave about 0.6 Nm, which is certainly higher than pure XT, but not three times as high as the flexural modulus would suggest.
It is also uncertain if the carbon fibers cause additional friction in the torque wrench that affects the result.
But anyway, XT-CF20 certainly appears more stiff than pure XT, which is interesting for example for drones, where you don't want things to flex too much under load. It appears not to be that much more rigid than PLA though.
What Colorfabb claims is that it is more rigid (bends less under a certain load, higher flexural modulus).
We did some comparisons with torque wrenches as I mentioned.
ABS and XT (PETG) gives about 0.3 Nm of torque and PLA about 0.5 Nm, which corresponds fairly well to the flexural modulus of these plastics.
The XT-CF20 gave about 0.6 Nm, which is certainly higher than pure XT, but not three times as high as the flexural modulus would suggest.
It is also uncertain if the carbon fibers cause additional friction in the torque wrench that affects the result.
But anyway, XT-CF20 certainly appears more stiff than pure XT, which is interesting for example for drones, where you don't want things to flex too much under load. It appears not to be that much more rigid than PLA though.
- LePaul
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Re: ColorFabb XT-CF20 Carbon Fiber Filament
For my scientific friends, I found this write up about carbon fiber and signal blocking. I noticed some quadcopter/drone guys complaining their devices would loose contact and crash.
Carbon Fiber and Radio Signals
Carbon Fiber and Radio Signals
- Titus
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Re: ColorFabb XT-CF20 Carbon Fiber Filament
Guys help, I've been printing XT CF20 but it stays stuck on my bed like hell. I used a bit of the TESA gluestick with water and microfiber cloth to spread it out, but I couldn't get it loose after it was cooled down to room temperature, I even broke my tools:
https://ultimaker.com/en/community/2052 ... ply-143913
What is your experience with it? Do you use glue, water, nothing? I had no trouble with the print itself whatsoever, it printed nice.
https://ultimaker.com/en/community/2052 ... ply-143913
What is your experience with it? Do you use glue, water, nothing? I had no trouble with the print itself whatsoever, it printed nice.
- Izzy
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Re: ColorFabb XT-CF20 Carbon Fiber Filament
Hi Titus, I haven't printed with it for a little while, but my favourite is to spray some hair spray on the bed. I have only printed a few small parts so no real problem with bed adhersion.
- Neotko
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Re: ColorFabb XT-CF20 Carbon Fiber Filament
I think his problem it's just the opposite Izzy, it sticks wayyy too much
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Re: ColorFabb XT-CF20 Carbon Fiber Filament
I have had some success in the past freeing stuck prints by using a compressed air spray can. If you spray it up-side-down, you can use it like a freezing spray. The shrinking in the part is usually enough to make it loose the grip.
Since you used TESA glue - which is water solvable, you could also try to remove the build plate and then soak it in water.
Since you used TESA glue - which is water solvable, you could also try to remove the build plate and then soak it in water.
- Titus
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Re: ColorFabb XT-CF20 Carbon Fiber Filament
@Izzy, yeah, it sticks way too much
@reibuehl. Actually, when I tried to remove the last parts that were broken off and still stuck I soaked it in hot water and it came off relatively ok. I wonder however, isn't water bad for the print? I have no experience with CF20, so that's why I'm wondering. As you might have seen I'm printing parts of Neotko's ultimaker dual fan.
I'll try it again with TESA glue, and afterwards fridge(no freezer) first, and otherwise water
@reibuehl. Actually, when I tried to remove the last parts that were broken off and still stuck I soaked it in hot water and it came off relatively ok. I wonder however, isn't water bad for the print? I have no experience with CF20, so that's why I'm wondering. As you might have seen I'm printing parts of Neotko's ultimaker dual fan.
I'll try it again with TESA glue, and afterwards fridge(no freezer) first, and otherwise water
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Re: ColorFabb XT-CF20 Carbon Fiber Filament
Water shouldn't harm your print as long as you do not soak it in water for days. CF20 is based on PLA which is said to be somewhat bio-degradable but we are talking about months or years here.
So the worst that can happen is that if your print is not water tight, some water might get into it but that should also come out afterwards. It might just take a few days if the holes are small
So the worst that can happen is that if your print is not water tight, some water might get into it but that should also come out afterwards. It might just take a few days if the holes are small
- darkdvd
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Re: ColorFabb XT-CF20 Carbon Fiber Filament
CF20 is based on XT...