EVQT_XSTRAND_OC
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Posts posted by EVQT_XSTRAND_OC
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8 minutes ago, PromakerFr said:
Hi,
Are the XSTRAND products saline environment resistant ? I am thinking about boat spare parts.
Thanks
GF30-PP is perfect for such application. Watch out this video that we did with our partner SEAIR, a startup that is developping foil for marine application.
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23 minutes ago, AD_XSTRAND_OC said:
John, we do have 50 Gram samples. I believe Emmanuel can go into more detail into about acquiring them. Would 50 grams be enough or are you thinking more?
John, send a note to 3Dprinting@owenscorning.com and our team will be happy to provide you some samples of material :)
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16 minutes ago, kmanstudios said:
While I understand that aspect of things, what is your determination of sun fibre through the length of the filament vs pieces. The adhesion would be the same issue in both cases, yes? Whereas, in thought a spun fibre running the length could provide a more lasting part. But this is just conjecture, but I am sure I am not the only one who has thought of this.
A continuous fiber will provide higher strength and stiffness than a short fiber, allowing for printing semi structural to structural parts.
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3 minutes ago, Brulti said:
How long is the whole process of creating a new material, from the idea to testing to the actual product being sold?
Do you run computer simulations being doing actual testing?
How many different iteration of a material do you go through during testing before you find the right mix to achieve whatever objective you had for a material?
A new material development requires about 6 to 9 months.
We are not using computer simulation for now.
XSTRAND filament is a combination of polymer, fiberglass and additives mixed all together to ensure the right material viscosity for a perfect printability, a good processability ( filament manufacturing ) while maximizing the mechanical and thermal performances. All of this requires a lot of iterations and experiments.
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6 minutes ago, kmanstudios said:
How do you select from a spun fibre running throughout the filament vs an assortment of pieces peppered throughout the filament matrix?
The most important factor is to have a perfect adhesion of the glass with the matrix. This is the role of the chemistry that is added to the glass surface. This will provide a strength increase. If adhesion is poor, it will act as a defect in the material and the risk to have crack propagation will increase.
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1 hour ago, JohnInOttawa said:
One question I have about this, and other new, exotic (my term) filaments centers on the high cost of trying it out. The only way I can access most filaments here in Canada is to buy the smallest retail roll, which is too much for a trial and has a high risk of being wasted if I don't store it properly or it sits too long before I have a project big enough to consume the whole roll.
This creates a bit of a vicious cycle - I won't quote on a job using filament I'm not sure will work for me, and I can't justify the cost of buying filament to try out unless I have work for the amount I plan to buy.
How about a half-retail size (or something like that) trial roll or coil so we can get used to the filament?
Thanks for arranging this AMA!
John
XSTRAND materials have the strength and characteristics to set the bar at a much higher level than before, while keeping an excellent printing capability and part quality, justifying a premium price.
GF30-PP is not sensitive to moisture, so it can be reused directly from the shelf. Only GF30-PA6 or Nylon must be re-dried before printing if the material as been exposed outside from its original sealed bag. It is a reversible process that doesn’t affect the material performance. There is no risk to damage or waste the product.
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4 minutes ago, Brulti said:
Have you tested your materials in very extreme conditions, ie antarctic-style weather for example?
We have a close relationship with ROSSIGNOL, a famous French ski-slope outerwear and equipment manufacturer that help us to develop and optimize our materials during the development phase last year. They did test GF30-PP in cold room up to -20°C and it passed all the test. Check the case study clicking the following link :
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10 minutes ago, SandervG said:
Alternatively, I understand you can also place the material for a similar amount of time on the buildplate of your Ultimaker in its/a box, to dry it, right?
Correct, you can lay the GF30-PA6 spool on your heated bed for a few hours before use
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Just now, EVQT_XSTRAND_OC said:
Only for PA6 Xstrand you will need to place the material into an oven at 80-90°C for a few hours. A good way to test if the moisture ha been removed from the material is to bend the filament with your hands. If the material bends rather than breaks then allow more time in the oven. Dried material will snap when you try to bend.
XSTRAND GF30-PP have a high resistance to cracking, acids, organic solvents. GF30-PA6 is chemically resistant to oils and fuels, gasoline, mineral spirits, and some alcohols.
Recommended print temperatures for the Ultimaker can be found in the Cura settings. If you are using a printer other than Ultimaker the general rule is to print the PA6 Xstrand close to the default nylon settings as a good start (230-260°C) and for PP Xstrand use the default settings close to ABS. A heated chamber does help out with extremely large parts.
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On 10/28/2018 at 11:38 AM, mastory said:
My limited experience printing nylon has shown me the paramount importance of keeping nylon in a dry condition - to a greater extent than other materials.
Does Xstrand retain this requirement? What are the storage requirements with xstrand to achieve reliable print results? Is there a recommended procedure to keep opened filament dry? A procedure to dry out material that has been compromised by environmental exposure?
Where are some pictures of some xstrand printed parts?
Is xstrand resistant to gasoline and/or mineral oils?
Recommended printing temperature and cooling settings? Nozzle, bed and chamber temps? Does a heated chamber help or hurt?
Thanks
Only for PA6 Xstrand you will need to place the material into an oven at 80-90°C for a few hours. A good way to test if the moisture ha been removed from the material is to bend the filament with your hands. If the material bends rather than breaks then allow more time in the oven. Dried material will snap when you try to bend.
XSTRAND GF30-PP have a high resistance to cracking, acids, organic solvents. GF30-PA6 is chemically resistant to oils and fuels, gasoline, mineral spirits, and some alcohols.
Recommended print temperatures for the Ultimaker can be found in the Cura settings. If you are using a printer other than Ultimaker the general rule is to print the PA6 Xstrand close to the default nylon settings as a good start (230-260°C) and for PP Xstrand use the default settings close to ABS. A heated chamber does help out with extremely large parts.
AMA: Oct 31st | Owens Corning - XSTRAND™
in Official news
Posted
Glass fibers have a much higher tensile strength than regular glass (200-500 times stronger than regular glass) Typical value of tensile strength for fiberglass is in the range of 1900 to 2000 MPa