AMAZINGLY cool new filament. Changes colour rapidly in sunlight (UV) - watch the video!
(Sorry about the impromptu portrait video orientation)
Wow, that’s a very fast transition. How well does it retain that transition rate after printing?
Not yet printed it! Just had to show it off as soon as I had a play with it. SO COOL
That’s the only colour option available to me at this point. I’ll get it on our site for sale this evening - probably by the meter to begin with.
That’s pretty sweet. Trying to think of what on earth I would print with it, lol.
@Ricky_Cadden I was thinking something that casts lots of shadows on itself creating some cool patterns.
Also need to tag in @Richard_Horne in this whole affair as it was his idea to hunt down/get this stuff made in the first place. He has some that I gave him in person the other day so I’m excited about what he thinks of it.
@Sanjay_Mortimer It prints really well (195 to 205) and keeps the speedy transition after printing, as far as I can tell extrusion does not change the reaction time or intensity. (unlike many of the thermo-change ABS materials)
I also tried it at 218 Degrees C on the 3DR, this printed but had tiny bubbles and was a little more frosty, it also didn’t smell all that great at 218 Deg C so I would say to try and keep it around 200.
Finally I mixed this material with Faberdashery Aurora Pink/blue UV reactive PLA and they blend really well in the mixing extruder. This ends up with both a pink to blue colour change in UV light and also a more sustained natural to purple change. My kids were rather impressed! and many bangles have now been printed 
I’ll post photos later.
Does anyone know if this level (no idea what level?) of UV reactive mineral is safe?
If it is, we need more colours.
Now, I really want to print out an object and shine a UV laser over it, that has some interesting possibilities…