Obsidian Black AF 1.75mm PCTG Filament Made in the USA!
Obsidian Black AF 1.75mm PCTG Filament Made in the USA!
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American Filament PCTG is very similar to PETG with several distinct advantages. You could even call it a PETG+! Our PCTG is made with a PET-based copolyester specifically designed for professional grade 3D printing applications where easy processing and high toughness are critical.
Our PCTG is made with a PET-based copolyester specifically designed for professional grade 3D printing applications where easy processing and high toughness are critical.
This material features a unique self-bonding ability providing very high layer-to-layer adhesion; possesses a high melt strength ensuring an even flow during the 3D printing process; is more chemically resistant & stable than PETG, ABS, or ASA (making it suitable for a wide variety of applications); boasts unmatched impact strength & toughness; has lower moisture absorption than PETG (making it more shelf stable); and can be printed reliably without an enclosure.
Unlike PETG, the finish of PCTG can vary between matte and glossy depending upon the temperature and speed settings you choose. Try 240-245°C to get that matte finish!
Key Features:
- Unmatched Strength & Toughness: Higher compressive, tensile, and impact strength than many other PETGs.
- High-Temp: Glass Transition Temperature of 85°C.
- Professional-Grade Performance
- Low Odor
- Does NOT Require Drying Before Use
- Effortless Printing: Even flow rate & wide range of nozzle temperatures.
- Made in the USA: Manufactured with American quality you can trust.
Resources:
- PCTG Technical Data Sheet (TDS)
- PCTG Material Safety Data Sheet (MSDS)
- PCTG Profile for Bambu Labs Printers
Print Settings
Print Settings
- Nozzle Temperature: 240 - 270°C
- Bed Temperature: 70 - 100°C
- Speed: 60 - 300 mm/s
Nozzle temperature can vary between 240-270°C depending on desired layer to layer adhesion vs part print quality. Higher nozzle temperatures will result in stronger parts, but may cause lower quality and/or increased stringing.
Part cooling can also vary depending on desired layer to layer adhesion vs part print quality. More cooling will result in better overhangs & bridging, but will decrease the ultimate layer to layer adhesion.
For Bambu Printers: We recommend using the Bambu Labs Gold Textured PEI build plate, or other aftermarket textured PEI build plates, for this material. 70°C should be sufficient for adequate build plate adhesion, going higher than this temperature may cause parts to adhere to the plate too well.
For Bambu Printers: recommended retraction length can vary between 0.8-1.2mm depending on the amount of stringing you experience. For other printers: the default retraction settings for PETG should be sufficient, but total retraction length may need to be increased slightly.
For Bambu Printers: It is recommended to lower your Top Surface print speed to 100-150 mm/s for higher top layer quality.
1kg Spool Dimensions (AMS-Compatible)
1kg Spool Dimensions (AMS-Compatible)
- Filament Weight = 1 kg
- Filament Diameter = 1.75 mm (+/- 0.05 mm)
- Spool Inner Diameter (ID) = 52 mm
- Spool Outer Diameter (OD) = 200 mm
- Spool Width (W) = 67 mm
- Spool Weight = 220 g
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Received a broken spool that won’t work in my ams. Contacted support and received absolutely no help.
Eric,
We apologize for the lapse in support! We recently restructured the back end of our support infrastructure, and unfortunately your email slipped throught the cracks. We are sending you a replacement spool.
I'm writing this to specifically referencing the samples. I have a full roll of PCTG ruby red and i love it so far. however, I also bought several packs of samples of various colors to try out. I think that i bought like 10 packs total. These packs come taped in a spool in a vacuum bag. The first problem i had was the tape that bound the filament left a residue on almost every strand that it touched. This would inevitability cause clogs if left on the material. The second problem i had was through the time taken to clean the residue off the filament, despite my best efforts, the filament ended up getting tangled on itself making it impossible to use. I tried this 5 times before giving up and trashing the rest of what i had. Is there a trick to making this work? Given these spools are so expensive i would prefer to try samples first, but the frustration just wasn't worth it.
Great Filament and a great Small Business to support!
Thank you so much David!
Great product. Fairly stiff with complex shapes, thinner shapes have some flex to them. Replaced some critical printer parts with ones made with PCTG- very solid, even though I'm exposing them to a heated bed almost directly. Lower layer heights really make this material shine.
Mind you, this material DOES absorb water, drying gives one less stringing.
I've used it so far on knife handles, saw handles, the aforementioned printer bed part, and have liked it quite a lot. Better adhesion than the matte black pla by a mile... :)
The AF PCTG filament is great. This needs to be in every maker’s inventory.