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notes/3D printing/Filament.md
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@ -141,9 +141,18 @@ Often called tough PETG or low temp nylon, PA-PETG is meant to serve as both a s
- Record setting stiffness, prints can withstand hundreds of kilos
- Will destroy most drive motors
- Surprisingly cheap (~60USD/kilo at the time of writing)
### PC-PBT (PBT Infused Polycarbonate)
PBT flaccifies the polycarbonate but preserves PC's strength and shatter resistance in the cold, making it one of the few cold-resistant filaments.
- Lower print temp
- Improved print quality
- Very low warping
- One of the easiest filaments to print in
### PMMA (Polymethylmethacrylate)
Also known as acrylic plexiglass, the high transparency of PMMA is the only advantage it has over other polycarbonates for printing.
| Pros | Cons |
| -------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| - Highest transparency thermoplastic<br>- Can be buffed to a frosted/polished surface<br>- High UV resistance<br>- Relatively affordable<br> | - Horrible bed adhesion<br>- Bad layer adhesion<br>- High coefficient of thermal expansion leads to constant print failures during or after the printing process<br>- Very brittle<br>- High water absorption |
# TPU (Thermoplastic Polyurethane)