Bambu Lab PC

Bambu Lab PC Filament — 1.75 mm, 1 kg

Polycarbonate is the step you take when PLA bends, PETG creeps and ABS cracks. Bambu Lab PC is a true engineering-grade PC that prints strong, stiff parts with a high heat-deflection temperature and genuinely impressive impact resistance — the same family of plastic used for safety glazing and machine guards. It is aimed at makers, workshops, schools with an enclosed machine, and small businesses producing functional parts rather than display models.

Typical jobs include drone and RC frames, motor and electronics mounts that sit near heat, jigs and fixtures, gears and linkages, lamp and LED housings, protective covers, and clear or smoked light pipes using the Transparent and Clear Black colours. PC is also a popular choice for parts destined to live in a hot car or an Australian summer shed, where PLA would soften and sag.

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Key features

High heat resistance Excellent impact strength Very high stiffness ± 0.03 mm diameter tolerance AMS-compatible reusable spool RFID auto-recognition Anneals for extra strength Non-abrasive — standard nozzle OK

Every spool carries a Bambu Lab RFID tag, so an X1 series, P1S, H2 series or other AMS-equipped printer identifies the material and loads the correct profile automatically — no guesswork before a long, expensive print.

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Print settings

• Nozzle temperature: 260–280 °C — your hotend must be rated to at least 300 °C
• Bed temperature: 90–110 °C, on a textured PEI or engineering plate with a thin layer of glue stick
• Chamber temperature: 45–60 °C — an enclosed printer (X1C, X1E, P1S, H2D) is strongly recommended; open-frame machines such as the A1 or A1 mini will warp badly
• Print speed: up to 300 mm/s, though 80–150 mm/s gives noticeably better layer bonding on structural parts
• Part cooling fan: 0–60 % — keep it low. Too much cooling is the number one cause of weak, delaminating PC prints
• Nozzle sizes: 0.2, 0.4, 0.6 and 0.8 mm all supported. PC is not abrasive, so a standard stainless steel nozzle is fine

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Specifications

Material	PC (Polycarbonate)
Diameter	1.75 mm
Diameter tolerance	± 0.03 mm
Spool weight (net)	1 kg, filament with reusable spool
Print temperature	260–280 °C
Bed temperature	90–110 °C
Chamber temperature	45–60 °C (enclosure required)
Density	1.20 g/cm³
Drying	80 °C for 8 hours
Colours available	4 — White, Black, Clear Black, Transparent

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Available colours

White · 60100 Black · 60101 Clear Black · 60102 Transparent · 60103

White and Black are the workhorses for functional parts. Clear Black gives a smoked, tinted finish that looks excellent on covers and diffusers, while Transparent prints near-clear when you use thick extrusion widths, 100 % infill and a slow, hot, low-cooling profile. Select your colour above — all four share the identical specification and print profile.

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Practical tips

Keep it dry — PC is one of the thirstiest filaments you can buy. A spool left out on the bench overnight in a humid Australian summer can pick up enough moisture to print with visible steam, stringing and weak, bubbly layers. Dry at 80 °C for 8 hours before a serious print, and store it sealed with fresh desiccant at under 20 % RH. A filament dryer used during printing is the easiest way to get consistent results.

Beat warping, then anneal for more strength. PC shrinks hard as it cools, so close the chamber, switch off the auxiliary and chamber fans, and use a brim on anything with a large footprint — a thin smear of glue stick on a textured PEI plate also stops corners lifting. Once a part is printed, annealing at 85–100 °C for 6–12 hours relieves internal stress and measurably improves strength and heat resistance; expect slight dimensional change, so test on a sacrificial part before annealing something that has to fit precisely.

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