3D Printing with Nylon 618 filament in Tie-Dye colours
This post first featured on my Blogger Blog 11th April 2013 here -
Nylon has amazing self-bonding properties making any FFF (layer-by-layer) printed objects very
strong and less prone to de-lamination.
Another aspect of its development was
the ability to colour the Nylon with fabric Dye. That hits almost every spot for me!
wanted to try colouring the raw filament with more than one colour, something I
have always wanted manufacturers to make is a range of filaments that have
changes of colour during the roll or even across the roll, now I had a way to
do it myself.
then dyeing the parts afterwards for best results, but I wanted to see what
happened when dyeing the filament first as that sounded a lot more fun.
Nylon 618 Intro video-
Here is an introduction video going over the simple Filament Dyeing process, You can also watch it in HD on YouTube Here -
rolls, nothing too messy or complicated, so obviously I ignored the instructions…
if you try anything else, do make sure it’s suitable, some Dye’s state they are
not, and some (Dylon for example) don’t seem to give any real advice on Nylon.
Other specific acid based dyes are designed for Nylon, but getting hold of them is not
all that easy in the UK, seems a little easier in the US.
dye Nylon, I can say that really didn’t work for me, and seemed to make the dye
almost useless. I’m not sure why it didn’t help as the acid content of Vinegar
or other things like citric acid are often used when dying Nylon based
(squashed bugs) makes a very strong red dye, Turmeric and tea also work on
does not seem to hinder the dyeing process, but it’s hard to say if it also
helped with my particular setup as I only did it with one colour and that was an already dark shade.
kettle of water, and added around 200ml to the Rit Dye sachet in a glass Jam
jar – stirred for 1 minute until dissolved.
coil before dyeing. Also you want to drop the filament into hot (boiling if
possible) water before putting it into the dissolved dye. Just for a few
minutes to get it up to temperature.
poured in the 200ml of dye, as you can see I wanted just half or less of the
coil to be covered in the bag (depending on bag size).
or twice if you remember.
time to get a nice colour from this extra concentrated dye.
(pink/fuchsia) so that really didn’t work at all well, and ended up being more
like a light pink/orange for some reason – I’ll try again without the vinegar
well and was very fast acting and seems to give the strongest colour when
seem to help and maybe needed longer to get a deep colour, hard to tell, but
next time I use Rit dye it’s going to be just plain.
try to keep the dye as hot as possible for as long as possible.
boil it up in a pan, or if like me you want a mixed filament ‘tartan look‘
rotate the filament in the bag and add another colour. Dye the next section
like above, rinse and repeat.
to dry out really well before use.
of ways with rubber bands or plastic to get some really interesting and
before with ABS and PLA, this should also work well for Nylon, but as I was
going away for a week I decided to leave the coils in an airing cupboard at a
slightly elevated temperature, this worked extremely well and all of my spare
ABS is stored in this cupboard permanently to keep out any moisture.
filament in a metal of wooden box with a low wattage light bulb (~25w) to keep
it dry. You can of course use desiccant sachets, but remember these really only
do absorb a tiny amount of moisture and need to be dried themselves for re-use.
any issues at all with it. No steam or pops as the filament was really dry,
actually better than when it had been originally delivered.
only change I decided to make was to increase the temperature of the print to
235 degrees C.
temperature of the natural Nylon down to 225, but I noticed the dark Teal
colour looked shinier and smooth at a little higher temperature, so 235 Deg C
is my now normal setting for Nylon @60mm/sec printing speed using a 0.4mm J-head
penetrates in about 85%, so you have a tiny core of natural looking filament,
this obviously all gets melted together in the extruder nozzle but it’s
interesting that the colours do not seem to really fade in the extruding process
as I thought it might, you do end up with nice and unique looking parts,
especially when the filament is cross multi-coloured.
agitation and constant high heat would dye the entire filament and produce even
Yellow filament, and where these colours mixed should have also given me Red, Green
and Blue. But I could only get hold of Teal (dark green) instead of Cyan and I
also didn’t allow the coils to mix enough as I rotated them for each of the
nothing else to do, where as dyeing the parts after printing would be a pain
each time you made a printed object, so I’m please how the first test came out
and will dye more Nylon Filament with some other colours next time.
as this was setup for 1.75mm Filament and also the Rostock for bigger models, both with cold Tufnol print surfaces.
Printing bigger Nylon prints
on the Rostock also seems to work extremely well, I have only done a few so far, but the Rostock seems very happy with Nylon too.
walled they don’t take very long to print. Check out more of Ben’s work on
Thingiverse Here and Perry’s Here
try out any Tie-Dye printing!
E3D All metal hot-end -
I just received a new all metal hot-end from e3d-Online, it’s one of the best machined objects I have ever received. And this really is an all metal hot-end, no PTFE inserts or sealing tape, just a stainless thermal junction and Aluminium heater block and heat-sink.
If it operates as good as it looks, we should have another option for really high temperature printing.
It’s not as heavy as it looks it has a J-head compatible Groove mount that fits perfectly into Greg style extruders and all the modified Bowden hot-end mounts I have made so far.
I plan to test it with Nylon, Polycarbonate, PLA, ABS and PC-ABS and any other materials I can get my hands on very soon.
I may need to change the thermistor over to a thermocouple for some materials, but I will let you all know how it performs.
3D Printing Presentation in Cheltenham -
Also, I will be speaking about RepRap and 3D printing along with demo’s at the Cheltenham design festival - April 13th, do come along if you can and say hello.
Thanks for reading, happy printing.