From c33fcf8639424e00f37e5a85fde051536be3d879 Mon Sep 17 00:00:00 2001 From: zleyyij Date: Tue, 6 May 2025 13:06:40 -0600 Subject: [PATCH] vault backup: 2025-05-06 13:06:40 --- notes/3D printing/Filament.md | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) diff --git a/notes/3D printing/Filament.md b/notes/3D printing/Filament.md index c78d950..16a8156 100644 --- a/notes/3D printing/Filament.md +++ b/notes/3D printing/Filament.md @@ -48,9 +48,9 @@ It has a warm waxy consistency that no adhesive will stick to. # PETG/PET-G (Polyethylene terephthalate-glycol) -| Pros | Cons | -| ----------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------- | -| - Tougher
- Better temperature resistance
- Highly transparent
- Very low coefficient of friction. | - Slightly more difficult to print than PLA
- Struggles with overhangs
- Struggles with support removal
- High humidity absorption | +| Pros | Cons | +| -------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------- | +| - Tougher
- Better temperature resistance
- Highly transparent
- Very low coefficient of friction.
- Food safe | - Slightly more difficult to print than PLA
- Struggles with overhangs
- Struggles with support removal
- High humidity absorption | ## Variants ### PETG-CF (Carbon Fiber PETG) Carbon fiber stabilizes molten filament, and given that PETG struggles with overhangs, PETG-CF has massively improved print support quality, along with improved stiffness. @@ -133,9 +133,17 @@ Often called tough PETG or low temp nylon, PA-PETG is meant to serve as both a s # Polycarbonate (PC) - In the real world, polycarbonate is used to make bulletproof glass. While FDM polycarbonate is not bulletproof, many of the properties of polycarbonate still apply. -| Pros | Cons | -| --------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------- | -| - One of the toughest, stiffest filaments
- Extremely high temp resistance
- Does not shatter | - Extremely high moisture retention
- Prints above 300C
- Difficult to print | +| Pros | Cons | +| --------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------- | +| - One of the toughest, stiffest filaments
- Extremely high temp resistance
- Does not shatter
- Highly transparent | - Extremely high moisture retention
- Prints above 300C
- Difficult to print | ## Variants ### PC-CF (Carbon Fiber Polycarbonate) -- Record setting stiffness, prints can withstand hundreds of kilos \ No newline at end of file +- Record setting stiffness, prints can withstand hundreds of kilos +- Will destroy most drive motors +- Surprisingly cheap (~60USD/kilo at the time of writing) +### 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
- Can be buffed to a frosted/polished surface
- High UV resistance
- Relatively affordable
| - Horrible bed adhesion
- Bad layer adhesion
- High coefficient of thermal expansion leads to constant print failures during or after the printing process
- Very brittle
- High water absorption |