3DXTech CarbonX ezPC+CF: Carbon Fiber Polycarbonate That Actually Prints (750 g, 1.75 mm)
CarbonX ezPC+CF is 3DXTech's carbon fiber polycarbonate filament — and the "ez" part is real. The manufacturer specs it at 260–280 °C, a print temperature range that almost any all-metal hotend desktop printer can hit. Performance-wise, it outclasses ABS+CF across the board: heat deflection temperature of 119 °C, Tg of 127 °C, and a tensile modulus of nearly 7,000 MPa. Available in black, 750 g, 1.75 mm. You'll need a hardened nozzle and, ideally, an enclosed printer.
Key Specs
- Carbon fiber reinforced polycarbonate filament.
- Tg of 127 °C and HDT of 119 °C at 0.45 MPa (per TDS).
- Tensile modulus of 6,980 MPa and tensile strength of 73 MPa.
- Amorphous structure with low, near-isotropic shrinkage, according to 3DXTech.
- Nozzle temp 260–280 °C, bed temp 80–100 °C, enclosed chamber recommended.
- Hardened steel nozzle, 0.4 mm minimum.
Will My Printer Handle It?
If your printer has an all-metal hotend that reaches 280 °C, a bed that hits 100 °C, and a hardened steel nozzle, you're good to go. 3DXTech designed the 260–280 °C window to work with most desktop printers, and recommends a heated enclosure. For medium to large parts, an enclosed printer is pretty much mandatory. If your hotend has a PTFE liner that reaches the nozzle, or you're running a brass nozzle, hold off for now.
ezPC+CF vs. ABS+CF: Which Should You Choose?
According to 3DXTech's TDS data, ezPC+CF wins almost everywhere: HDT of 119 °C vs. 76 °C, tensile strength of 73 MPa vs. 46 MPa, and tensile modulus of 6,980 MPa vs. 5,210 MPa. ABS+CF is somewhat easier to print and can be smoothed with acetone. For functional parts that need to handle heat, ezPC+CF is the clear choice. For a deeper dive, check out our complete carbon fiber filament guide.
Technical Specifications
| Property |
Value |
| Material |
Polycarbonate (ezPC) + carbon fiber |
| Diameter |
1.75 mm |
| Net weight |
750 g |
| Color |
Black |
| Nozzle temperature |
260–280 °C |
| Bed temperature |
80–100 °C |
| Enclosure |
Recommended |
| Nozzle |
Hardened steel, 0.4 mm minimum |
| Layer height |
0.25 mm or greater |
| Drying |
80 °C, 4 hours |
| Density (ISO 1183) |
1.36 g/cm³ |
| Tensile strength (ISO 527) |
73 MPa |
| Tensile modulus |
6,980 MPa |
| Elongation at break |
2.1 % |
| Flexural strength (ISO 178) |
85 MPa |
| Flexural modulus |
6,540 MPa |
| Tg (DSC) |
127 °C |
| HDT at 0.45 MPa (ISO 75) |
119 °C |
| Surface resistance |
>10⁹ Ω/sq |
Printing Tips
- TDS test specimens were printed at 275 °C, bed at 95 °C, 0.25 mm layer height, and 100% infill.
- Use a hardened steel nozzle, as recommended by 3DXTech.
- Polycarbonate absorbs moisture readily — dry it for 4 hours at 80 °C before printing. Our filament dryers can reach that temperature.
- Print in an enclosure and keep part cooling fan speed low to prevent layer delamination.
- Use a layer height of 0.25 mm or greater, as specified by the manufacturer.
FAQ
What format does it come in?
1.75 mm diameter, 750 g spool, black. SKU PC006CF100750BK00, verified on 3dxtech.com.
Why is it called ezPC?
Because 3DXTech formulated it to print at 260–280 °C — significantly easier than standard polycarbonate and compatible with most desktop FDM printers.
Do I need a hardened nozzle?
Yes, 3DXTech strongly recommends one, 0.4 mm minimum.
Do I need a heated chamber?
3DXTech recommends one. At a minimum, use an enclosed printer.
What temperatures can it handle?
HDT of 119 °C at 0.45 MPa and Tg of 127 °C per the TDS.
Does it smell when printing?
Very little, according to 3DXTech.
Is it conductive or ESD-safe?
No. The TDS lists surface resistivity above 10⁹ Ω/sq.
Is it brittle?
It is very rigid, with an elongation at break of 2.1% per the TDS. For parts that need to flex, a non-filled material is a better choice.
