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3D print filament pondering
Materials that act something like a mobile phone cover - sturdy, grippy, bounces on impact. Not sure these will be required for sensor array, but there's another project I'm working on that will definitely need something like this.
Material: anything flexible, maybe also some nylons.
Candidates:
Needs to survive wide range of outdoor conditions, UK, rain, heat, etc.
Materials:
Candidates:
- Anything ASA based (UV stable):
- FilamentOne ASA - several colours available
- Anything TPC based (UV stable):
- ?
- Anything TPC based - withstands up to 150°C
- Anything PC based - withstands up to 116°C
- HT PLA - after annealing, can withstand up to 140°C
Optically clear lens for top of sensor pod. In particular, it should allow UV to get in.
Materials: Anything see-through for prototyping, but for production probably need proper optical glass/plastic.
Candidates:
- Clear Shield - CNC cuttable plastic; filters x-ray
Specific chemically inert materials are required for all airflow aspects of the gas chromatograph. Also need hydrophobic membrane to keep moisture out.
- Material: PTFE
If sensors or components are affected by background EM radiation, they'll need shielding.
- Materials: Metallic or specialist
- Could use metal lids similar to LattePanda and LoPy?
- Note: Metallic filament = nozzle wear; probably needs dedicated wider nozzle if using these
- GMASS - Bismuth, Tungsten - also, great colours
- Bronze, Copper
- Steel, Brass, Bronze, Copper
- Aluminium
- Aluminium, Brass, Bronze, Copper, Gold
- Magnetic Iron
- Stainless Steel
- Electrically Conductive Graphite
- ESD Safe - not really EM shielding but nowhere better to put it
- Conductive + ESD Safe
Bands that can be placed around the joins between sensor modules for both practical and aesthetic purposes. Could also have a base cap version to provide much larger area of colour/effect (and also better visibility when looking from below the sensor).
- Rubber seal band:
- Mandatory - integral part of the design
- Internal, prevents moisture getting in (IP67)
- See Rubbery Casing section above
- Basic colour bands:
- Can be used to differentiate sensors, or colour code forest trails, etc.
- Most aren't UV-proof and will fade in time - what could they be used for afterwards?
- Colours would need to be bold to stand out, example
- Florescent colours would work even better:
- Green, Blue, Orange, Yellow, Red Ruby
- Pink, Green - PLA/PHA - lots of other normal colours here too
- Could use wood filaments for natural look
- Matte:
- Matte HTPLA is a very nice colour and texture (cheap Uk supplier)
- MatteForge - kickstarter
- ProMatte
- Marble effect
- Multicolour: rainbow, pastel, smooth gradient
- UV color change:
- Visible indicator for presence of UV radiation
- Use to indicate sensor is not designed for indoor-use?
- Potentially darken sensor casing at night?
- Looks cool
- Pink -> Blue
- White -> Blue - PLA/ABS - very fast colour change
- White -> Purple (amazon)- PLA/ABS - very fast colour change, more contrast than the white -> blue
- Purple -> Natural
- Red -> Natural
- Thermal color change:
- Visible indication of adverse temperature
- Potentially darken sensor casing at night? (see Grey -> White below)
- Looks cool
- Grey -> White - PLA/ABS
- Dark Green -> Light Green PLA/ABS
- Purple -> Pinkish-orange - PLA/ABS
- Blue -> White - PLA/ABS
- Note: Colour change filament above likely made by GizmoDorks, who state colour change temp is 31°C, also, see video
- Green -> Yellow
- Orange -> White - PLA/ABS
- Blue -> White - PLA/ABS
- White -> Blue
- Chameleon - including one that glows in dark as well
- Grey -> Clear
- Dark Pink -> White
- Deep Pink -> Neutral
- Glow in the dark:
- Make sensor visible at night
- Useful for forest trails - sensors indicate path
- Looks cool
- Yellow -> Green - PLA
- Grey -> Blue - PLA/ABS available
- Cream -> Green - it's mix of PLA+PHA
- Cream -> Green - Pro-Series PLA
- Whiteish -> Green - PLA/ABS available
- Whitish -> Green - flexible TPE
- Purple, Red, Blue, Green, Yellow - ABS or PLA, same colour in day as night, many vendors selling same product; always seems to be out of stock
- Blue, Green 1, Green 2, Orange, Red, Yellow - PLA, UK seller
- Light Blue -> Green
- Reflective:
- High visibility at night if you shine a torch on it
- REFLECT-o-LAY - very reflective
- reFilactive - not avail yet
- Glitter flake
- Galaxy blue - probably not that reflective, might be good to get kids interested in tech tho?
- HIPS: use D-limonene
- ABS: use Acetone, Esters or Ketones
- PVA: use Water
- PLA: use Ethyl Acetate (partially dissolves), or Weld-On #5 (fully dissolves)
- PEEK: use conc. Sulphuric Acid