How to Print ASA and ABS on the Bambu Lab P1S or X1C Without Warping

ASA and ABS are durable, UV-resistant, and heat-tolerant materials — ideal for outdoor parts, enclosures, or functional prototypes. But printing them successfully requires a few key adjustments to avoid common issues like warping, layer separation, and poor bed adhesion.

In this guide, we’ll walk you through how to print ASA and ABS on the Bambu Lab P1S and X1 Carbon, both of which are enclosed printers that support high-temp materials.

🔥 Why ASA and ABS Warp More Easily

These filaments are prone to warping because they shrink significantly as they cool. Without a consistent, warm ambient environment, the bottom layers can detach from the bed or crack between layers. Unlike PLA, they require higher bed temps and controlled airflow.

✅ What You Need for ASA/ABS Success

✔ Enclosure (Built-In on P1S and X1C)

Both printers include a basic enclosure, which is essential for:

• Trapping heat

• Preventing drafts

• Maintaining ambient temperature (~40–50°C inside the chamber)

✔ Build Plate: Textured PEI or Engineering Plate

Use the Textured PEI Plate or Engineering Plate with glue stick or adhesive aid.

TIP: Avoid using the Cool Plate. It doesn't retain enough heat and may cause warping.

✔ Bed Temperature: 90–110°C

• ABS: 100–110°C

• ASA: 90–100°C
  Make sure the bed is preheated for several minutes before starting the print.

✔ Chamber Temperature: Passive but Effective

While the P1S and X1C don’t have active chamber heating, their enclosure helps retain enough ambient heat for success with ASA and ABS.

🧠 Expert Settings in Bambu Studio

To optimize your print:

• Turn off cooling fans (except for bridging layers)
  → Set Layer Fan to 0–10%

• First layer height: 0.2 mm for better bed adhesion

• Brim or raft: Add a brim of 5–10 lines to help prevent corner lifting

• Slow down first few layers: Start at 20–30 mm/s

You can modify Bambu Studio’s “Generic ABS” or “Generic ASA” profiles to match these values, or create your own.

🧽 Bed Prep Tips

• Use a glue stick, ABS slurry, or Magigoo on the plate

• Clean the plate with IPA between prints

• Preheat the chamber for 5–10 minutes before starting large parts

⚠️ Things to Avoid

• Don’t print with the front door open — heat loss causes warping

• Avoid running the part cooling fan unless needed for small bridges

• Don’t use textured plates without adhesive — ASA/ABS may pull off the surface

💡 Bonus Tip: Use the Side Panels for the P1S

If you have a Bambu Lab P1S, installing the optional side panel upgrade will improve temperature stability. This helps the P1S match the performance of the X1C for ABS and ASA printing.

🏁 Final Thoughts

With the right plate, temperatures, and slicer settings, ASA and ABS can print reliably on both the Bambu Lab P1S and X1 Carbon. These materials unlock a new level of strength and function for serious makers — and now you can use them without worrying about warping.