Question New dual color filament

Have a question you need help with?
Solution
Eric
I used the pentagonal-filament to make the triangle filament but I had not posted that file yet so here it is!

I think you should be able to slice it and divide it up to dual color just the same as mine, being a pentagon I'm not sure where the half-way point actually is but I had been printing it 0.2mm and just eyeballed the halfway mark. The filament fits through PTFE tubing so it shouldn't have any trouble on anyone's printers. If comes out too thick or something let me know though and I'll upload a thinner version. If you're using version 5 or higher of Cura you should also be getting the same variable line width as with Arachne, I am downloading a new version of Cura now because I didn't realize they also had implemented it in...
Sort by date Sort by votes
I haven't tried it yet but it looks really fun! This would be really cool to pair with those prints where it shows two different words depending on which side your looking at it.
 
Upvote 0 Downvote
Oh that is a cool idea, they were out of blue glow in the dark last time I ordered but maybe I could use this technique to mix the white/green glow in the dark with blue filament. I think I’ll give it a try tonight and see!
 
Upvote 0 Downvote
🤯 I didn't think about that. I haven't used either of those; does it seem like they have similar enough properties/temperature range to get good layer adhesion between them?
 
Upvote 0 Downvote
I think it should be okay as long as your mixing the same plastics. I usually get great adhesion when I do color swaps, even the wood pla and silk pla stuck well.

Might be interesting to try and make a more realistic wood textured wood filament with that technique, maybe even just by staining half the sides of the wood filament before using it?
 
Upvote 0 Downvote
Andy said:
🤯 I didn't think about that. I haven't used either of those; does it seem like they have similar enough properties/temperature range to get good layer adhesion between them?
Click to expand...
I know that the tri color and green glow in the dark I had printed at the same temperature, they both have worked great in the past for filament changes for me for other PLA just haven't tried those specifically together yet...and I just made it through my first spool which was the tri color change about a month ago, so I'd have to get more
 
Upvote 0 Downvote
I didn't have the blue in PLA and didn't want to try mixing PETG and PLA because that sounds like trouble... but I have this hideously bright toxic yellow that I think might make a really punchy version of the glow in the dark. If this works out it would actually be perfect, when I did the toxic waste barrel print I thought the glow in the dark is a little disappointing to look at in daylight so this might be a good compromise.

IMG_3088.jpeg
 
Upvote 0 Downvote
IMG_3091.jpeg

This print method really worked well to give you a perfect 50/50 split with it aligned, I think ensuring it feeds in without rotating would be key to getting the prints to have a consistent color per side.
IMG_3092.jpeg


I threw a cylinder in prusa slicer and had it run in vase mode. I adjusted the cylinder to a little over 10g in filament used since that is how much prusaslicer estimated the coil would weigh.
IMG_3093.jpeg

I thought it had lost a lot of glow but I think it's actually just because it's vase mode thin, I will have to see how a thicker model looks with the glow in the dark.
IMG_3102.jpeg

Much better color mix for glowing toxic waste in daylight.
IMG_3109.jpeg

It worked well! I did have to increase the flow % from 95 to 140 to accommodate but that seemed to be fairly common from the thingiverse comments. I am going to try with some high contrast colors next to see if we can see the mixing better. I think this method is really cool but filament run out sensors or some sort filament joining are required to get more than 10-20g per print.
 
Upvote 0 Downvote
Awesome!!!! I was curious how the shape might differ and not fit in the Bowden tube though. Is there a bit of tubing by your hotend or is it directly ran from the extruder to the hotend? If there's no tube, do you happen to have one to test it with for me before I try to slice and print some of my own too? Lol, now I'm wondering what would happen if you took two different dual colors and tried to make a quad color change by angle 🤔
 
Upvote 0 Downvote
The prusa does have 2" section of PTFE to the extruder so I think it should fit in the Bowden tubing on the enders. It seems like it's slightly smaller than normal 1.75mm filament so most commenters suggested using extra flow on the printer. I had to increase to 140% to get rid of gaps in the first layer of the vase.


Trying generic no name Purple Silk PLA and Polymaker Gold Silk PLA
IMG_3125.jpeg


The calipers are in the house away from the printer but printed filament looks pretty close the extruded stuff, maybe a bit smaller:

IMG_3132.jpeg
 
Upvote 0 Downvote
Wow! Thanks! Im definitely going to have to try to slice and print some too!

This is the correct thing file, right?
www.thingiverse.com

3D-Printable Filament! -Print Your Own Filament for Multi-Color! by Turbo_SunShine

3D-Print your own (1.75mm) filament!Please see other comunity makers "makes" they are truly incredible!Please see the video for more information, and a proper look at these prints - The pictures don’t do the colors justice!:https://youtu.be/6kbjZobJtbMIts sounds crazy, but it works! This...
www.thingiverse.com www.thingiverse.com

Thinking I'll start with the 7g file first
 
Last edited:
Upvote 0 Downvote
Yeah I had used the 110mm not tested file but I think you could fit larger if you wanted because I hardly used the bed up at all. I turned off gap fill but there is a hallow core to mine so that might not be the best idea.

So the two sided look definitely works! I did have some spinning of the filament as it was printed though which my third image makes a sort of histogram of the filament spiraling through the extruder. The front came out purple and the back golden but the side has a peanut butter and jelly mixture.
IMG_3135.jpegIMG_3136.jpegIMG_3137.jpeg
 
Upvote 0 Downvote
The print model is currently a hexagon shape but I think if we made it a diamond it could have a 3d printed guide in the same shape to unspiral the filament as it reaches the extruder. I think by just forcing it through a diamond shaped hole it would be forced to come out more consistently. It doesn't seem the like the extruder is super picky about the exact shape of the filament considered the Mountain Dew bottle strips are pretty effective as filament too.
 
Upvote 0 Downvote
Wow, awesome! I'm definitely going to have to try it out! I just sliced a 20mm xyz calibration cube out to 15% infill to get it down to 5g in the slicer and the 7g filament file with 100% infill and gaps filled between walls. Will take an hour to print the filament and another for the cube.

Going to try out metallic green with the pink/purple temperature color change I used for the dryer supports and cable chain
 

Attachments

  • IMG_20220720_162701574.jpg
    IMG_20220720_162701574.jpg
    1.5 MB · Views: 1
  • IMG_20220720_162639469 (2).png
    IMG_20220720_162639469 (2).png
    2.9 MB · Views: 1
  • Screenshot_20220720-170006.png
    Screenshot_20220720-170006.png
    800.8 KB · Views: 1
Last edited:
Upvote 0 Downvote
Eric said:
It doesn't seem the like the extruder is super picky about the exact shape of the filament considered the Mountain Dew bottle strips are pretty effective as filament too.
Click to expand...
Lol, I saw that idea and was wondering if it actually worked! Neat! I may have to give it a try too!
I'm also curious if my longer then usual tube will help keep it from rotating
 
Last edited:
Upvote 0 Downvote
That would be great if the bowden tube helps keep it going in the same way! You may want to trim some of the inner spiral once printed. I found some of the smaller winds were too curved to easily use. That color change and green should be a really cool combo!
 
Upvote 0 Downvote
Back
Top