Where can I purchase recycled polypropylene 3D printer filament?
I am a research student interested in using recycled 3D printing filaments in my ultimaker for a university project on sustainable design. I was using polypropylene because I needed the housing to be chemically inert. However, I cannot find any recycled polypropylene filaments in my local market or on global searches. Does anyone know a source or company in which I can obtain recycled polypropylene filaments (2.85 mm ideally). Thank you for your assistance.
Can anyone recommend viable polypropylene fabric sources in the US? Both spunbond and meltblown.
The only widely available material I could find is the Pellon 915 Cambric interfacing, which is spunbond. I could not source any meltblown fabric.
Planned use is as insertable, possibly disposable filters in double layer cotton masks.
When will someone make a completely silicone aeropress damn it!!
Me and some friends are just getting into this and barely have money do we need expensive masks if we are just using polypropylene swords? Could we use something like an airsoft mask instead? If we have to use the special masks do you guys have any recommendations?
I have neither the tools or time to make some swords myself, but I want to find some more exotic blades to start practicing with like the falx, sicca, kopesh, or others I'll find as time goes on. Has anyone found a decent small business or company that does custom jobs?