Polymaker Fiberon PET-CF17 Carbon Fiber Review: Specs, Pros and Cons
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This polymaker fiberon pet cf17 carbon fiber review covers a 1.75mm black filament designed for high stiffness and dimensional stability. It contains 17% carbon fiber reinforcement, which helps parts maintain their shape under load. The material reaches an annealed heat deflection temperature of up to 147.5°C at 0.45 MPa after proper heat treatment. These two specs define its utility for rigid prototypes and functional tooling. You get a 0.5kg spool that weighs 1.1 pounds. The filament requires specific printing conditions to perform well. It is less sensitive to moisture than nylon composites but still needs dry storage.
What stands out
- 17% carbon fiber reinforcement for high stiffness
- Annealed HDT up to 147.5°C at 0.45 MPa
- Print temperature range of 270–300°C
- Build plate temperature of 70–80°C
- Less sensitive to ambient moisture than nylon
Who it fits
Good fit for
This filament suits makers who need rigid prototypes, jigs, fixtures, or tooling that must hold up under stress. If you are printing parts that require dimensional stability, the 17% carbon fiber content helps maintain shape. It is also a good fit for users who want a material that is easier to manage regarding moisture than nylon-based composites. You should use this if your setup includes an all-metal hotend and a hardened nozzle. The high heat deflection temperature makes it ideal for functional parts that face thermal loads after annealing.
Who should skip it
You should look at another option if your printer lacks an all-metal hotend or a hardened nozzle. The carbon fiber reinforcement makes the filament rigid and abrasive, which can wear down standard brass nozzles quickly. Do not use this if you cannot maintain a build plate temperature of 70–80°C. It is also not suitable for parts where the main load is applied along the Z-axis, as layer adhesion is weaker in that direction. Avoid this if you prefer flexible materials or parts that require significant bending without cracking.
Verdict: Polymaker Fiberon PET-CF17 is a specialized filament for stiff, dimensionally stable parts that face thermal or mechanical loads. It requires specific hardware and settings to print reliably.
Key specs explained for this filament
17% Carbon Fiber Reinforced PET
This composition provides high stiffness and dimensional stability. You can use it for jigs, fixtures, tooling, and rigid prototypes. The carbon fibers help parts maintain their shape under load. This makes the material suitable for functional parts that require structural integrity. Compare this to standard PETG if you need stronger, more rigid components for your projects.
Annealed HDT up to 147.5°C
After annealing at 120°C for 10 hours, the material reaches a heat deflection temperature of 147.5°C at 0.45 MPa. This indicates strong thermal resistance for end-use parts. Actual performance depends on geometry and print settings. This spec is higher than many standard thermoplastics, making it ideal for applications involving moderate heat exposure without deforming.
Print at 270–300°C
You must set your hotend temperature between 270°C and 300°C for proper extrusion. This range ensures the carbon fiber reinforced PET flows correctly. It is higher than standard PLA or PETG. Ensure your printer can sustain these temperatures reliably. An all-metal hotend is recommended to handle this heat range without degrading components during long prints.
Hardened, wear-resistant nozzle recommended
The carbon fiber reinforcement makes the filament rigid and abrasive. Standard brass nozzles will wear out quickly. You should use a hardened steel or ruby-tipped nozzle for reliable extrusion. This prevents clogging and maintains print quality over time. If you are switching from standard filaments, upgrading your nozzle is essential for consistent results with this material.
Design and Build Quality
According to the listing, the Polymaker Fiberon PET-CF17 is a 1.75mm black filament reinforced with 17% carbon fiber. This composite structure is engineered for high stiffness and dimensional stability. You should expect parts that maintain their shape under load, making this material well suited for jigs, fixtures, tooling, and rigid prototypes. The carbon fiber reinforcement adds rigidity, which requires careful handling during printing. You must avoid sharp bends and multiple turns in the feed path to prevent damage. For load-bearing applications, position the main load along the XY plane to ensure consistent layer adhesion and structural integrity.
The product comes in a 0.5kg size, which weighs 1.1 pounds. This specific weight and size option is one of several variations available, including 1kg and 3kg spools in different colors and materials. The black finish provides a uniform appearance for functional parts. Because the filament is rigid, you need a professional printing setup to handle it correctly. The listing recommends an all-metal hotend and a hardened, wear-resistant nozzle for reliable extrusion. You should print at temperatures between 270–300°C with a build plate heated to 70–80°C. Keep the cooling fan off during the print process to ensure proper layer bonding and surface quality.
Setup and everyday use
Setting up this filament requires specific printer configurations to ensure reliable extrusion. You must set the nozzle temperature between 270 and 300 degrees Celsius. The build plate needs to stay at 70 to 80 degrees Celsius. You should turn the cooling fan off during printing. An all-metal hotend is recommended to handle the high temperatures. You also need a hardened, wear-resistant nozzle. Standard brass nozzles will wear down quickly due to the carbon fiber. A heated chamber is not required for this material. However, using one can help with dimensional stability.
Daily use involves careful handling of the spool. The carbon fiber reinforcement makes the filament rigid. You must avoid sharp bends in the feed path. Multiple turns in the tube can cause jams or damage. Store the filament sealed and dry. It is less sensitive to moisture than nylon composites, but it still absorbs water over time. If printing quality declines, dry it at 100 degrees Celsius for 10 hours.
For load-bearing parts, position the main load along the XY plane. This orientation helps the part maintain its shape under stress. Tune your temperature and speed settings to ensure consistent layer adhesion. The material is suitable for jigs, fixtures, and tooling. It maintains stability even after annealing at 120 degrees Celsius for 10 hours. This process raises the heat deflection temperature to 147.5 degrees Celsius. Always check your print settings for each new project.
Before you buy this filament
You need an all-metal hotend and a hardened nozzle for reliable extrusion. Standard brass nozzles wear quickly against carbon fiber. Ensure your printer supports temperatures up to 300°C and bed heating to 80°C. A heated chamber is optional but helpful. Store the spool sealed and dry. Moisture affects print quality. Dry it at 100°C for 10 hours if exposed. The filament is rigid. Avoid sharp bends in your feed path. Multiple turns can cause jams. Position load-bearing parts along the XY plane. Tune temperature and speed for layer adhesion. This material suits jigs, fixtures, and tooling. It fits well alongside other engineering filaments in your collection. Check compatibility with your specific printer model before ordering. Verify your extruder gears handle rigid materials. This ensures consistent feeding and prevents grinding. Proper setup prevents failure during long prints.
Check before you buy
- Verify your printer has an all-metal hotend.
- Ensure you have a hardened steel nozzle.
- Check bed heating capability reaches 80°C.
- Confirm extruder gears handle rigid filament.
- Have a dry storage solution ready.
The product at a glance
Polymaker Fiberon PET-CF17 0.5kg
Best for: Rigid prototypes and functional tooling parts
- Material Type
- PET-CF17
- Filament Diameter
- 1.75mm
- Net Weight
- 0.5 kg
- Features
- Carbon Fiber, Heated Chamber
- Weight
- 1.1 pounds
View on Amazon: Polymaker Fiberon PET-CF17 0.5kg Affiliate link
This 0.5 kg spool of black PET-CF17 filament features 17% carbon fiber reinforcement for high stiffness and dimensional stability. It offers an annealed heat deflection temperature up to 147.5°C, making it suitable for rigid prototypes and functional parts. You need an all-metal hotend and a hardened nozzle for reliable extrusion at 270–300°C. The material is less sensitive to moisture than nylon composites but still requires dry storage.
Pros
- 17% carbon fiber reinforcement for high stiffness
- Annealed HDT reaches 147.5°C at 0.45 MPa
- Less moisture-sensitive than many nylon composites
- Suitable for jigs, fixtures, and tooling
Cons
- Requires a hardened, wear-resistant nozzle
- Must be stored sealed and dry
- Cooling fan should remain off during printing
Good fit if
- You need high stiffness for functional parts
- You require dimensional stability under load
- You have a hardened nozzle installed
Skip if
- You lack an all-metal hotend
- You prefer easy storage without drying
- You need standard soft nozzles
Verdict: Polymaker Fiberon PET-CF17 Carbon Fiber Filament is a specialized material for users who need rigid, stable parts for jigs and fixtures. It fits those with the right hardware to handle carbon fiber reinforcement.
Specifications side by side
| Spec | Polymaker Fiberon PET-CF17 0.5kg |
|---|---|
| Material Type | PET-CF17 |
| Filament Diameter | 1.75mm |
| Net Weight | 0.5 kg |
| Features | Carbon Fiber, Heated Chamber |
| Weight | 1.1 pounds |
| Size | 0.5 kg |
| Color | 0.5kg Fiberon Pet-cf17 Black |
Frequently asked questions
What is the best use for Polymaker Fiberon PET-CF17?
It is best for rigid prototypes and functional tooling parts. The 17% carbon fiber reinforcement provides high stiffness and dimensional stability. This makes it ideal for creating jigs, fixtures, and other components that must maintain their shape under load. It is not suited for flexible or decorative items.
Does this filament come in a 1kg spool?
No, the listed product is a 0.5kg spool. The packaging weighs 1.1 pounds total. You should check the product listing for other size options if you require a larger quantity. The current data only confirms the availability of the half-kilogram variant.
Is the color black?
Yes, the filament is black. The product name specifies Black Pet-cf17. This color is consistent with the carbon fiber reinforcement mixed into the PETG base material. It provides a uniform dark finish for your printed parts.
Can I print with a standard brass nozzle?
You should not use a standard brass nozzle. The carbon fiber reinforcement causes rapid wear on brass. You need a hardened steel nozzle to handle the abrasive material. Using a brass nozzle will likely damage it quickly during printing.
What printer hardware is required?
You need an all-metal hotend and a hardened nozzle. The printer must support temperatures up to 300°C for the hotend and 80°C for the bed. A heated chamber is optional but helpful. Standard printers without these upgrades may struggle with reliable extrusion.
How stiff are parts printed with this filament?
Parts are very stiff due to the 17% carbon fiber content. This reinforcement helps maintain the shape of the part under load. It is suitable for functional tooling and jigs where rigidity is critical. The material resists bending compared to standard PETG.