Nylon

So while we wait to find out if nylon is a no go or not Taulman has come out with his newest material. From his information this stuff looks incredibly strong.
http://www.taulman3d.com/645-features.html

 

This is more expensive than 618.

 

Also what surface it will stick to. Are there warping issues?

 

From their site: http://www.taulman3d.com/645-specifications.html
"

NOTE​

: Current 645 measures 1.76mm to 1.83mm dia in a slightly oval shape due to the draw and cooling process. The line cross​

-​

section is constant, however users should make a slight adjustment to their "Material Dia" (1.7​

8mm - 1.80mm)​

​

settings to accommodate this slight variance.​

​

Layer Height = Any
Speed - 645 has a slightly higher viscosity than other printing materials. As the layer height exceeds 50% of the nozzle dia, printing speed should be adjusted downward ~10% - 20% ​

Retraction - again, due to a slightly higher viscosity, the retraction distance may need to be lengthened. ​

Excessive bubbles in the printed thread are an indication of a higher than required print temperature.

Reducing Print temperature below 238 will result in less thread opacity due to recombination with the atmosphere, however this will also reduce bonding in layers exceeding 25% of nozzle dia.

Shrinkage is equal to ABS and can be controlled using garolite (LE) as a print table cover/plate

Heated beds help just as they do for printing with ABS

Printing a larger amount of material for the first layer of a print on garolite will make the printed part extremely difficult to remove.​

While printing with a higher infill percentage will make a stronger part, it is probably not required. When we exceed 50% fill, it no longer provides any noticeable benefits other than optical."​

 

The one thing keeping me from ordering a couple rolls to play with is this...

"NOTE: Current 645 measures 1.76mm to 1.83mm dia in a slightly oval shape due to the draw and cooling process. The line cross-section is constant, however users should make a slight adjustment to their "Material Dia" (1.78mm - 1.80mm) settings to accommodate this slight variance."

I am wondering if they will fix this issue in future batches and I was also wondering how this issue will affect print quality.

It also looks like the printing temp is pretty high. I'm not sure what temps RoBo is capable of handling.

Sent from my iPad using Tapatalk HD

 

This was just released today. Apparently Robo is one of the companys that they have given some sample material to. The printing temp is about the same as 618.
Justin- it is more expensive but it is WAY stronger. Watch the video where he HITS IT WITH A HAMMER and it doesn't even crack. He even warns about printing it wrong and having it stick forever to the print surface.

I would think this will print pretty much the same as the 618 so you are going to want to use garolite. It is new just thought it was pretty cool and crazy strong

 

My main concern is the diameter issues.... I'm not sure what kind of challenges that will cause with RoBo... Maybe Harry can ask the team if they have tested it yet....

I am now summoning the great Harrison... Harry could you ask the Team about this?

 

18 minutes.... not bad Harry...

 

robo is using the standard jhead with peek insulator and ptfe liners, these are only good to about 245C tops, and they start melting unless you have a fan to help keep it cool, but that only helps the peek, the ptfe liner is still inside so there's still a possibility that you can damage your hotend or just have major jamming issues because the ptfe liner starts to melt or burn.

I wonder how the the hot end is doing with the nylon? they haven't posted any status updates on it. I"m surprised we didn't see some photos of nylon prints in the latest updates, since they have been testing it.

 

PS, I have seen quite a few posts all around the internet about hot ends failing when printing with Nylon. The guys did try now it is a matter of if they will tell us what their experience was.

 

Thanks for the info Harry.

 

glad to know harry, would love for their hotend to work, but i'm gonna be going to all metal soon as it arrives. there's just more options in filament choices with a hotend that can do 400C+

peek and ptfe used in hotends seem to have a lower melting temp than the same material used for other purposes, probably attributed to design. There's is no safety net if you running it at peek temperatures all the time. all this stuff can be research via the web and forums, and personal experiences.

 

when printing plastics such as nylon, polycarb or acrylic, normalization is critical. keep it dessicated and you will get consistent results, otherwise your going to have a bad time.. a good normalization procedure is to bake it at 200F for 24h. then pack in a sealed bag with some sodium silicate until you are ready to use it. only load as much as you are going to use in 6-8h (8 is pushing it for acrylic but ok for nylon unless humidity is high)