yeah good afternoon YouTube so this is my first nylon string trimmer filament print test so
I printed the 20 millimeter test cylinders so they're printed with no top or bottom or infill
misses printed at 238 C and I did get pretty much solid stringing between the two cylinders but you
can see there it pretty darn strong I can compress them and actually stringing I mean that's as hard
as I could pull and it does not come apart so there I can start to tear it right there so
I'm going to try yeah I don't know that's yeah once you get it to tear it it'll keep going so
I'm going to try some different temperatures here and just see what I can come up with it stuck to
the bed very well this is I'm trying 230 years it might be a little too cool but I guess the way to
find out is to do some test prints and I might have to go up a little higher so again this is
the point 0 6 5 inch filament which i think is around one point six millimeters check that here
yeah one point six shows up there I haven't tried recalibrating the filament diameter I still have
that set at 1.75 so and I still see some stringing going on there doesn't seem to be any odor that
I can smell just a you know hot plastic kind of smell nothing nothing terribly strong and I get
a little bit of spitting and popping probably for a little bit of moisture in the filament but one
page I was reading says a little bit of moisture in there helps with the bed adhesion if you get it
too dry it may not stick so I've had the filament has been in about a 20 percent relative humidity
George box and I just took it out last night Thank You Martin YouTube so I've been playing
around with this nylon string trimmer line and trying to work on reducing the stringing between
the parts and that one is working pretty good what I did was I increase the retraction up to about
4 millimeters and then also sped up the extruder speed during retraction up I think 90 millimeters
a second and that looks pretty good there's a little bit of stringing but compared to where
I started that was like a solid almost a solid layer in there if you see that that one was with
essentially with PLA settings so that that works pretty good so I got these numbers off of Tallman
site for some of their nylon filament so I think I'm on the right track also bumped the temperature
up to 250 I just did a single layer there so I guess where it does the retraction there's kind of
a seam there but see what kind of boy yeah that's a lot tougher now you can still tear it apart but
that takes quite a bit of quite a bit of force to do that that's just a single point four millimeter
wall thickness where before it was printing this was point eight millimeters and I've also working
on editing the cure material profiles settings so that that seems to make it a little bit cleaner to
make these changes so you change the file and that keeps all the settings permanent so you
don't lose them so it kind of created my own cure a profile for the nylon 6 trimmer line but I have
been printing some of my my actual spacers and these things these things are tough I put them
in a put it in my bench vise and tried crushing them and they just give a little bit and soon as
you let go of the vise they pop back to normal so there were the two it printed two parts and
there was a little bit of stringing okay YouTube just wanted to show you the retraction settings
in action here so you can see I'm printing these twin cylinders and then the extruder
retracts you can hear the quick retract and then extrude step back and it also does a pretty quick
jump that tell it to move really fast between parts so the idea is you hold a filament out to
take the pressure off the melted filament in the extruder and then you move really quick to reduce
the stringing and then I think I've enabled the combining feature which is supposed to also help
there just a matter of trying all these various settings and see which one works the best I think
that's going pretty good did you get definite definite reduction in string yeah it looks like
it's working pretty good they're definitely here that retraction going there you can see just a
little bit yeah looks like it's working there so yeah if anybody's played around with nylon
filament retraction settings you know post up any findings you have in the comment section below if
you found any good web pages or videos that's a kind of a hard thing to find any information
about you know there's haven't found any really really detailed information so if you run across
anything post that up and maybe we'll all learn then it will to do better prints and you can't
beat the price on this stuff that's probably the least expensive filament available and it
seems to be very strong misdial in the printing parameters and get good quality good looking
prints that's kind of the one downside now is you have a little bit of stringing so if we found that
any of that interesting give the video a thumbs up comments below and as always thanks for watching