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I'm finally getting around to messing with this stuff. Now I can balisong in the dark.
Step 2 is determining how badly all the particles of gumf in this filament negatively impact the mechanical strength.
Edit: I probably should have said this in the first place, but this is Overture green glow PLA.
The model is my Rockhopper balisong utility knife. Go check it out -- it's fully printable, even the hardware.
Is it the classical ZnS based stuff that fades within minutes or the modem strontiumaluminate (like luminova) that lasts for hours?
It's interesting to hear that there is a new style as I've done several prints using the old style and it's so lame that it only works for a few minutes after being exposed directly to bright light especially with how rough it is on the machine. It wore a groove through the hotend on my old Sidewinder X2 after using about a Kg to print a giant Lego skeleton.
Imagine how I feel when I see the old stuff. Yes, it is cheaper and for child toys why not. But frigging filament, signs etc.? Strontiumaluminate based stuff is just a different level. just compare them, the old ZnS based stuff fades SO fast you can barely see it in a time lapse.
From a chemical composition standpoint I couldn't tell you, but my off-the-cuff testing indicates that the glow remains visible for quite a few hours -- All night, in fact, though obviously tailing off in brightness considerably as time goes on.