1 (edited by Smow 2017-02-13 08:20:51)

Topic: Extruding Glow in the Dark

Picked up some Glow in the Dark chips, and a at first thought that the rough texture was from the moisture, as reported by a lot in the community. Come to find out the 'grains' that make the filament glow is the rough texture.

Question is, and based on the nozzle damage to 3D printers reported by the community, is the brass filastruder's nozzle at the same risk.

plastic abs glow resin pellets are a Grade BN31 / Color 701

This the chips that I got.

Running at 191C for 1.72 (otherwise the rough texture makes pulling with the Fliawinder difficult)

I fixed the issue with 1.72 by using a very short piece of tubing and with some electrical tape, I am able to get the size of the filament to 1.75 while  not having so much drag as to cause issued with winding.

2

Re: Extruding Glow in the Dark

believe I bought some of the same from Ebay. Do you have a link to the complaints to the damage to the printers ? I am now afraid to use it in the filastruder or the printer...

3

Re: Extruding Glow in the Dark

Glow in the dark (whether raw pellets/colorant or filament) is pretty abrasive stuff. The part that glows is Strontium Aluminate, and that's pretty abrasive.

In a printer you'd want a hardened nozzle. Some folks have run some in a Filastruder, but it was associated with jams over time.

4 (edited by Smow 2017-02-15 23:58:04)

Re: Extruding Glow in the Dark

Funny story, and if you knew me better it would make sense but...

I don't own a printer quite yet, the Prusa I3 I ordered over Xmas break is going to be here on Friday so I have been waiting to get going with some printing.

With the glow in the dark chips and the filawinder  I used the 3mm tube vs 1.75 because even though it is the right size (1.75 + or - .03) it is like 300 grit sandpaper and the drag through the tube was enough to cause all sorts of problems. Bigger tube and it works fine.

I have put through 5lbs of the stuff through my filastruder and then moved on to some other ABS, I have not noticed a single change in the performance of the filastruder. I may find out that I can't use the stuff, but it doesn't appear to hurt the filastruder.

As for the filawinder, well lets just say that it took a bit of a chunk out of the arm. Check out the attached photo of the arm. Another 5 pounds of this stuff may be all she can handle smile

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Re: Extruding Glow in the Dark

DO you think if you were able to mount a small piece of plastic tubing in there. This might eliminate the wear on the arm?

6

Re: Extruding Glow in the Dark

Smow wrote:

I have put through 5lbs of the stuff through my filastruder and then moved on to some other ABS, I have not noticed a single change in the performance of the filastruder. I may find out that I can't use the stuff, but it doesn't appear to hurt the filastruder.

This is a good data point, thanks for sharing. There were one or two reports a few years back that after running some glow in the dark, output rate decreased dramatically. Of course there are many variables, and the GITD may have been unrelated to the performance loss.

7 (edited by Smow 2017-02-16 16:25:57)

Re: Extruding Glow in the Dark

This is perhaps the best article that i have seen on damage from abrasive filament.

http://e3d-online.com/is-carbon-killing-your-nozzle

Video:

http://www.nerdhq.com/3d-printing-nerd- … ur-nozzle/


One other note on the filament (and I will post real numbers when I get it) is that the extrusion process was MUCH slower when doing the GITD material. It took almost twice as long to fill a roll than with the ABS 747 that I am extruding. The 747 is about 7.8" a minute. another way of putting it is the 5 pounds of GITD took almost 3 days.

I make my own spindles with paper tubes and cardboard, 40mm center tubes with 100mm radius, which is as big of a spindle you can put on with the servo being in the highest position on the filawinder. If any one wants a pic of how I make them let me know.