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Filaments: Difference between revisions
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* <b>Filament density:</b> PETG/PLA > ABS/ASA | * <b>Filament density:</b> PETG/PLA > ABS/ASA | ||
* <b>Hotend temp required:</b> PC > ABS/ASA > PETG > PLA | * <b>Hotend temp required:</b> PC > ABS/ASA > PETG > PLA | ||
[[CATEGORY: 3D Printing]] |
Latest revision as of 03:26, 1 September 2024
Keeping notes on various FDM printing filaments here. Prices are per kilogram spool unless stated otherwise. Printing was done on a Bambu Carbon X1C unless stated otherwise.
Polylactic acid (PLA)
- Bambu silky green 2024-06 $25: beautiful results
Thermoplastic polyurethane (TPU)
- Overture 95A green 2024-06 $30: stringy as hell
Acrylonitrile butadiene styrene (ABS)
- Bambu black/green 2024-06 $14 (4kg @ $56): solid workhorse
High impact polystyrene (HIPS)
Support material for ABS/PET, dissolvable
- Bambu green Support-G $80 ($40/.5kg): expensive!
Acrylic styrene acrylonitrile (ASA)
- Atomic Filaments black 2024-06 $19 (7kg @ $130): lay the first layer at 105, and remaining layers at 115.
Polycarbonate (PC)
- Bambu clear black 2024-06 $40: befouled my .4mm hotend. Very lovely when it prints.
- warping at 115, stick to builtin 110
Polyamide Nylon (PA)
Polycaprolactam (Nylon 6, PA6)
- Atomic Filaments black
Polyethylene terephthalate (PET)
Polyethylene terephthalate glycol (PETG)
- Atomic Filaments black Carbon Fiber: result is very tough
- most reliable method seems to be cold plate (not textured PEI)
- 270/60, no fans
- or *very clean* textured PEI at 270/80, default 70 is no good
- Bambu Support-W (breakaway PLA support) $70 ($35/.5kg): works well enough, expensive
Bambu filaments parameter table
Parameter | PLA Aero | ASA | ASA Aero | PC | ABS | ABS-GF | PETG-Trans | PETG-HF | PA6-CF | PPA-CF | PLA-CF |
---|---|---|---|---|---|---|---|---|---|---|---|
Print temp ℃ | 210-260 | 240-270 | 240-280 | 250-270 | 240-270 | 240-270 | 230-260 | 230-260 | 260-290 | 280-310 | 210-240 |
Print speed mm/s | <180 | <250 | <150 | <300 | <300 | <180 | <220 | <300 | <100 | <100 | <200 |
Flow rate ratio | 0.5-0.8 | 0.93-0.97 | 0.45-0.80 | ||||||||
Filament density g/cm³ | 1.21 | 1.05 | 0.99 | 1.2 | 1.05 | 1.08 | 1.25 | 1.28 | 1.09 | 1.25 | 1.22 |
Foaming rate | 0-120 | n/a | 0-110 | n/a | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
Vol. expansion ratio | 100-220 | 102 | 100-210 | ||||||||
Print density g/cm³ | 0.55-1.05 | 1.03 | 0.46-0.97 | ||||||||
Tensile strength MPa | 24±2 | 37±3 | 32±4 | 55±4 | 33±3 | 36±3 | 33±4 | 34±4 | 102±7 | 168±4 | 38±4 |
Breaking elongation rate | 2.6±0.7 | 9.2±1.4 | 5.1±1.6 | 3.8±0.3 | 10.5±1.0 | 6.3±1.2 | 8.2±1.3 | 8.6±1.2 | 5.8±1.6 | 3.2±0.4 | 8.4±3.2 |
Bending modulus MPa | 1690±120 | 1920±130 | 1510±120 | 2310±70 | 1880±110 | 2860±130 | 1610±130 | 2050±120 | 5460±280 | 9860±480 | 3950±190 |
Bending strength MPa | 45±4 | 65±5 | 58±6 | 108±4 | 62±4 | 68±4 | 68±3 | 64±3 | 151±8 | 208±6 | 89±4 |
Impact strength kJ/m² | 28.8±1.3 | 41.0±2.3 | 32.0±2.5 | 34.8±2.1 | 39±3.6 | 14.5±1.5 | 37.4±3.3 | 31.5±2.2 | 40.3±2.5 | 41.7±2.8 | 23.2±3.7 |
Melt index g/10min | 7.7±0.6 | 7.0±0.8 | 1.56 ± 0.5 | 32.2±2.9 | 34.2±3.8 | 7.56±1.4 | 11.7±1.5 | 28.2±2.7 | 6.8±0.6 | 8.4±0.7 | 3.7±0.6 |
Melting temp ℃ | 153 | 210 | 204 | 228 | 200 | 202 | 228 | 214 | 223 | 258 | 165 |
Heat deflection temp ℃ | 53 | 100 | 85 | 117 | 87 | 99 | 74 | 69 | 186 | 227 | 55 |
Vicat softening temp ℃ | 54 | 106 | 80 | 119 | 94 | 103 | 79 | 70 | 212 | 232 | 69 |
Qualitative comparisons
Manufacturers employ additives to change the properties of their filaments, which I don't attempt to address here. Properties may change across different batches of the same filament. These are very rough comparisons based off oral wisdom.
- Impact strength: ASA > ABS > PC > PETG > PLA
- Tensile strength: PA6-CF >> PC >> ASA > ABS ~= PETG > PLA
- UV resistance: ASA > ABS
- "Chemical" resistance: PETG > ABS
- Melting temp: PC > ASA > PETG > ABS >> PLA
- Heat resistance: PC > ASA > ABS > PETG > PLA
- Printing speed:
- Offensiveness (odor, VOCs while printing): ABS > ASA, PC
- Acetone postprocessing: ASA/ABS only
- Ease of sanding: PLA > PETG > ABS/ASA
- Ease of painting: PLA > PETG > ABS/ASA
- Tendency to warp: PC > ABS/ASA > PLA > PETG
- Hygroscopicity: PA > PETG/ABS/ASA > PLA
- Filament density: PETG/PLA > ABS/ASA
- Hotend temp required: PC > ABS/ASA > PETG > PLA