Seems to be something between PLA/PHA and XT...
although they say low odor generation the material safety datasheet recommends 10 air changes per hour which is a lot... I guess it's producing fine dust particles... like ABS.
Edited by GuestI have a couple of spools of it here. I've just started a test print of the ctrlV's testprint.
The only test I've done on it so far is bending it back and forth to see what happens. You can bend it over onto itself and it wont break, but when you "open it up" again it snaps. We'll see how the test print goes.
Oh, and let me know if you want anything in particular tested on it.
I'm just about to order some stock due to my expected visit to Germany, so an opinion on this material would be very much helpful indeed.
Here's a first result, just did 1 print, a test object printed in a temperature range from 235c to 215c in 5c steps (bottom=235).
For comparison I added the (almost) same test in faberdashery PLA (range=210-190)
I'm pretty impressed, think the result is very good, overhang and details are real nice. Object on the right is nGen.
It's a bit difficult to compare on the object I printed, but it's definately a lot softer (more flexible) than PLA. Have not tried printing it on bare glass yet, but on "tesa easy stick eco" (the triangular glue stick) it sticks good.
to zoom in on the photos get them here (nGen-faberdashery: nGen on the right):
https://www.dropbox.com/sh/t0im1c0967zosg3/AADBG9HUjj_T5lrdr3ByceYLa?dl=0
Also put the Gcode for UM2 in the folder.
3
Used bed temp = 65, fan = 100%
And small nuance, the faberdashery test was printed with the original UM2 fanshroud, the nGen with Labern's
2
My bridging didn't look as good as yours. But I'm not sure if that was due to cura or the filament (wasn't around when it printed). Overhangs look nice though, 60 degrees looks perfect, 70 is rough.
For layer adhesion and strength 230-235C feels the strongest. If you get down to 210-215C it's crap, you can hear the infill crunching as you bend the part.
I was wondering how different PLA brands compare. This is the exact test file @ultiarjan posted printed on my UM2 with Olsson Block (0.4mm nozzle) and the standard fan shroud. The print was made with Diamond Age PLA Silver (the closest color I had to light gray).
btw: I really like that test file!
@Dim3nsioneer what's the link of that test file please? 
cheers
oops nvm, didn't know it was in the dropbox link included, sorry
@dim3nsioneer, that diamond age looks pretty nice, but the "ears" are a lot better on the nGen.
I noticed I took an old version for the nGen test, the Test5_UltiArjan.stl has 2 angles for overhang testing (usedTweak at Z for the temp changes). You can also take the "XT255-235_F100_Test5_UltiArjan.gcode" and change the temperatures in a text editor.
@dim3nsioneer, that diamond age looks pretty nice, but the "ears" are a lot better on the nGen.
I noticed I took an old version for the nGen test, the Test5_UltiArjan.stl has 2 angles for overhang testing (usedTweak at Z for the temp changes). You can also take the "XT255-235_F100_Test5_UltiArjan.gcode" and change the temperatures in a text editor.
I would not take the result of the ears as a result of the material. I think this is the point where the fan shroud could actually make a difference. One of us should separate the two things.
You'r right, I should print the faberdashery again with labern's shrout.
Did also check the layer adhesion, and I can confirm what Robert mentioned, its fairly poor at lower temps, you need at least 230, so a lot worse than PLA. I did print with 100% fan, while the advice is 50% fan. I think the material can provide very nice results for decorative pieces, but for now I don't think it's very well suited if you need good mechanical properties, but that's just a first impression, will need to test with less fan...
Here's some bot's at original size in nGen, 230c, 30mm/s, 100% fan, 75c Bed
Different to what I mentioned before on these small parts the tesa easy stick was not giving enough adhesion, with the bed at 65c and tesa the bot's popped of the bed mid print, so I used my magic "works with anything" Cube stick.
Looking at the bot's that did not stick, they had quit a rounded bottom, this material seems to warp quit a bit. If you look at the picture you see the first layers are not so nice. When you're printing a decorative piece, and layer adhesion is less critical it's probably better to try and print a bit colder.
Last thing I noticed is that the material seems to have a bit more friction in the bowden than PLA/PHA, 1st because it's feels like it's just less slippery in the bowden, 2th there seems to be more tension in the material... I wonder how that will affect printing the last bits of the spool ....
Did a small test to check the flexibility of nGen.
printed some simple strips in 220, 230 and 240 Celsius, bed 70, 50mm/s, 100% fan.
The lower the printing temperature the more flexible the material stays, the 240 is rather stiff.
When bending the material it stays bend, bend it back a few times and you hear the layers, but overall the layer adhesion was rather good even at 220. maybe cause it printed close to the heated bed, maybe because the layer adhesion is more of an issue with thin walls?
The material is not super strong, the 230 and 240 pieces easily broke when I tried to bend them.
maybe cause it printed close to the heated bed
Good conclusion 
hmm, thin walls are problematic, Darth Vader astronaut just broke his helmet :( I barely touched it removing some stringing with my fingernail....
printed at 220 Celsius, 100% fan.
Apparently I need to reduce the fan, but already at 220 with 100% fan there's stringing, less than with XP but still...
And something else I know from XP, burn marks...
1
Layer adhesion is very simple for an amorphous polymere ( ngen )
T° extrusion -----------> the time as long as possible ------------> Tg
Exit the fans !
Edited by GuestAnd did the same Gcode again in faberdashery architect stone PLA (200/60)
The nGen (left) looks a lot better on overhangs, look at the leg...
Difficult to show in a photo, but I also think the overall surface quality of the nGen looks better.
2
So I just received a few rolls today a gave it a try.
Apart from some minor warping I gotta say I'm pretty impressed. A lot easier to print then XT, layer adheasion is strong. I put quite some force on my part and it didn't break.
No stringing or blobs so not bad for a first try.
Printed at 50mm/s, 0.3mm Nozzle, 0.1 layer height, 230 degrees, 80 degree bed, fan 40%.
What settings for flow are you guys using for NGEN? I'm not sure what the calculation is for mm/s to the percentage the control panel gives me. Printing 0.2mm layers with a 0.4mm nozzle at 40-50mm/s
Also, I'm getting some serious drooping/sagging on the second layer as it bridges between the first layers edge and over to the support where the 2nd layer wall is. I've tried 220 to 235 for temps and it doesn't seem to affect it. Fans at 50%
picture?
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It's brand new imo, they released it today?
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