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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?
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.
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.