Re: Carbon Fibre
Just for these interested in our application of parts we have printed using Treed Carbonium filament.
We have used bearing blocks shown above for telescopic arm and we have used adaptors to attache mecanum wheels to 3/8 hex shaft.
We had quite a bit of parts printed in PLA on the robot as well.
Our 2019 robot:
https://imgur.com/a/K9AbQRT
Re: Carbon Fibre
Hi Piotr! Congratulations, those parts look good!Could you share the complete settings? I haven't tried for a long time but I never got useful parts with the Treed Carbonium unfortunately.
Thanks! George
Re: Carbon Fibre
The only idea I have is to disable Z-hop and try again.
Retraction is reduced to 0.5mm already, maybe I can reduce a little more, but the material is also oozing a lot.
ANY IDEAS AND SUGGESTIONS?
The material looks good otherwise, very stiff.
After failing with Fillamentum PA12-CF15 (lots of warping, even on small parts, I think it requires a heated chamber), I'm having success with ColorFabb PA-CF Low Warp, it's a really easy to print filament, sticks well, no warp, even without enclosure. I'm keeping it in a sealed container with about 3kg of silica gel, but when it's printing, it's exposed to normal atmosphere (approx 30-40% RH).
And the more I print, the more oozing I get. It's also been reported elsewhere that water content in the hygroscopic nylon is increasing oozing a lot. Basically all that water turns into vapor in the hot zone and pushes the plastic out. I've already ordered a dryer, and will see if that helps ...
You may want to do try drying your filament right before printing.
Re: Carbon Fibre
I only have NylonX to try so far. next spool will be the Treed Carbonium. the specs and prints look really good. i have a chamber that i built around the printer and i use the dryer before and during the print process. since some of my smaller prints did not stick (nylon and some PLA), i have to use kapton tape on top of the build sheet and then the glue stick for the NylonX. https://share.icloud.com/photos/0vOgfMCTvmJujg3_KqzrucZcw
https://share.icloud.com/photos/0Ba2LnG1yosW36s5IhShMUk7A https://share.icloud.com/photos/0L62ELdTXUdfuqFztNoPOcgeQ
RE: Carbon Fibre
Has Anyone worked with formfutura 175 carbfil?
Sorry for my poor English. I try to do my best.
RE: Carbon Fibre
I can confirm that drying the ColorFabb PA-CF Low Warp (60°,12h) has resolved all my issues I was having with it. No more oozing, no more rough surface, no more clogs even on long prints with a 0.4mm nozzle and 0.15mm layer height. It prints beautifully, the prints have good layer adhesion and are stiff.
RE: Carbon Fibre
I have found perfect results with Master hacker PETG with CF.
--------------------
Chuck H
3D Printer Review Blog
RE: Carbon Fibre
You should see what MarkForged is doing... the cost of their equipment is very high, but they have been working on this problem for many years... they have an FFF machine that lays down a proprietary nylon, and add a woven kevlar strip into it... the parts are very clean and strong.
Starting cost is prohibitive... Also I have seen demos of folks building bike parts with FFF as patters for CF layup.
Thankyou for the info, your post is very helpful... Amazon has treed... not in stock.
RE: Carbon Fibre
Thankyou for the info, your post is very helpful... Amazon has treed... not in stock.
Even TreeD themselves are out of PAHP Carbon and while I've already paid for it, they aren't able give me an estimate when it'll be available again - they have issues with supply of the base polymer.
RE: Carbon Fibre
Thankyou for the info, your post is very helpful... Amazon has treed... not in stock.
Even TreeD themselves are out of PAHP Carbon and while I've already paid for it, they aren't able give me an estimate when it'll be available again - they have issues with supply of the base polymer.
And they just shipped it today.
RE: Carbon Fibre
Carbon fiber can't do away with the fact that layer strength is still the weakest link in the model. I see there is an application for cosmetic reasons, no doubt. But for mechanical reasons I would not bother as Carbon fiber can't overcome the mechanical limitations of FDM printing.
3D Druck für Einsteiger leicht gemacht: www.3d-druck-lernen.de
RE: Carbon Fibre
Carbon fiber can't do away with the fact that layer strength is still the weakest link in the model. I see there is an application for cosmetic reasons, no doubt. But for mechanical reasons I would not bother as Carbon fiber can't overcome the mechanical limitations of FDM printing.
The idea of CF materials in FDM is that you take a soft, flexible, tough material with good layer adhesion and add chopped carbon fiber to it as a filler. The result is a material that keeps most of the properties of the original tough material and becomes very stiff in addition.
RE: Carbon Fibre
Carbon fiber can't do away with the fact that layer strength is still the weakest link in the model. I see there is an application for cosmetic reasons, no doubt. But for mechanical reasons I would not bother as Carbon fiber can't overcome the mechanical limitations of FDM printing.
I don’t think anyone is saying it is a replacement for true carbon fibre weave or strands. But from all accounts it does make it stiffer which is a key issue with plain plastics.
i3 Mk3 [aug 2018] upgrade>>> i3MK3/S+[Dec 2023]
RE: Carbon Fibre
Carbon fiber can't do away with the fact that layer strength is still the weakest link in the model. I see there is an application for cosmetic reasons, no doubt. But for mechanical reasons I would not bother as Carbon fiber can't overcome the mechanical limitations of FDM printing.
I don’t think anyone is saying it is a replacement for true carbon fibre weave or strands. But from all accounts it does make it stiffer which is a key issue with plain plastics.
The question I asked myself is whether the stiffness applies in all directions. I understand the stiffness parallel to your layers should be a lot tougher because of the carbon, but what about forces perpendicular to the layers where layer strength may be the limiting factor?
Any ideas?
3D Druck für Einsteiger leicht gemacht: www.3d-druck-lernen.de
RE: Carbon Fibre
Carbon fiber can't do away with the fact that layer strength is still the weakest link in the model. I see there is an application for cosmetic reasons, no doubt. But for mechanical reasons I would not bother as Carbon fiber can't overcome the mechanical limitations of FDM printing.
I don’t think anyone is saying it is a replacement for true carbon fibre weave or strands. But from all accounts it does make it stiffer which is a key issue with plain plastics.
The question I asked myself is whether the stiffness applies in all directions. I understand the stiffness parallel to your layers should be a lot tougher because of the carbon, but what about forces perpendicular to the layers where layer strength may be the limiting factor?
Any ideas?
I don't know how accurate it is, but there's a new YouTube video that tested that. A little warning, the video is in German.
In this example, the carbon has actually increased the layer adhesion. (I was surprised too)
RE: Carbon Fibre
The question I asked myself is whether the stiffness applies in all directions. I understand the stiffness parallel to your layers should be a lot tougher because of the carbon, but what about forces perpendicular to the layers where layer strength may be the limiting factor?
Any ideas?
If we're talking about stiffness as in eg. flexural modulus, we're talking about how much deformation the material experiences when a force is applied. We're staying in the elastic deformation range of the material, and that means delamination doesn't play a role. As long as there isn't too much gap space in the material, I would assume that the stiffness should be similar in all direction.
Strength is where layer adhesion dominates, typically limiting the Z strength to 40-50% of the X/Y strength. I believe stiffness to be much less affected. (Currently I don't have the equipment to verify that claim by measurements, though.)