Bambu Studio — Slicer Reference
Purpose
Accumulated slicer knowledge for Bambu Studio.
Companion to print-bambu-p2s (printer hardware). Updated every time a
slicer setting causes a problem or solves one.
Companion skills:
print-bambu-p2s — printer hardware, calibration, maintenancecad-build123d-general (separate plugin) — FDM design rules, if you
model with build123d
Profiles
Bambu Studio ships with default profiles per (printer × nozzle × material).
Start there; tune from there.
Default profile naming convention
<Printer> <Nozzle> <Material> <Variant>
Examples:
Bambu Lab P2S 0.4 nozzle Generic PLABambu Lab P2S 0.4 nozzle Bambu PETG HFBambu Lab P2S 0.4 nozzle Generic ABS @BBL P2S
When you tune a profile, save as a new named profile — never overwrite
the default. Use the format <base> — <use case>, e.g.
P2S 0.4 PLA — Outdoor enclosures.
Key Settings by Material
PLA (default workhorse)
| Setting |
Value |
Notes |
| Nozzle temp |
220 °C |
Lower (210) for finer detail; higher (230) for stronger bonds |
| Bed temp |
65 °C |
Textured PEI |
| First layer speed |
50 mm/s |
Slower = better adhesion |
| Print speed |
200 mm/s default |
Bambu defaults are fine |
| Cooling |
100% from layer 2 |
PLA loves cooling |
| Retraction |
0.8 mm |
Default |
| Adaptive airflow |
Cooling mode (auto) |
P2S adaptive airflow draws cool external air — door stays closed (unlike P1S which needed cracking open) |
PETG
| Setting |
Value |
Notes |
| Nozzle temp |
250 °C |
Higher than PLA for layer adhesion |
| Bed temp |
80 °C |
Up to 85 °C for large parts |
| First layer speed |
30 mm/s |
PETG needs squish; go slow |
| Cooling |
30–50% |
Too much cooling = weak layers |
| Retraction |
1.0 mm |
Slightly more than PLA to combat stringing |
| Z hop |
Enabled (0.4 mm) |
Reduces blob drag across surfaces |
| Adaptive airflow |
Cooling mode (auto) |
Door closed; adaptive system handles drafts |
| Brim |
5–8 mm for parts > 100 mm |
PETG shrinks; brim catches edge lift |
ABS / ASA
| Setting |
Value |
Notes |
| Nozzle temp |
260 °C |
|
| Bed temp |
100 °C |
Max bed temp; needed for adhesion |
| First layer speed |
30 mm/s |
|
| Cooling |
0% layer 1, then 20–30% |
Too much cooling = warping |
| Adaptive airflow |
Heating mode (auto) |
P2S closes external intake; internal circulation traps heat |
| Brim |
Always |
ABS warps; brim is non-negotiable for any part |
| Ventilation |
Required outside print |
Fumes — P2S activated carbon filter handles VOCs but vent the room |
TPU (95A+)
| Setting |
Value |
Notes |
| Nozzle temp |
230 °C |
|
| Bed temp |
50 °C |
|
| Print speed |
30–50 mm/s |
Slow — TPU compresses in the feeder |
| Retraction |
Disabled or minimal |
TPU stretches; retraction = jams |
| Cooling |
50% |
|
| AMS |
DO NOT USE |
Print from external spool only |
| Infill |
Gyroid |
Preserves flexibility |
Support Strategies
| Support type |
When to use |
| None |
Overhangs ≤ 45°, bridges < 5 mm |
| Normal (auto) |
Standard overhangs, mechanical parts where surface finish under support doesn't matter |
| Tree (auto) |
Organic shapes, isolated overhangs, minimizing material |
| Tree (manual) |
Complex parts where auto places supports in hard-to-remove spots |
| PVA / BVOH (AMS) |
Captured features (e.g. interior of a hollow shape); pricey but clean |
| Painted on (custom) |
When you need precise control — paint exactly where supports go |
Support tuning settings worth knowing
| Setting |
Default |
When to change |
| Support overhang threshold |
30° |
Lower (20°) for crisper overhangs; higher (45°) to use less material |
| Support / object Z distance |
0.2 mm |
Lower = harder to remove but better surface; higher = easier remove but rough |
| Support pattern |
Rectilinear |
Crosshatch for stronger support; gyroid for organic parts |
| Top interface layers |
2 |
More = smoother top of supported surface; uses more material |
Infill
| Pattern |
Strengths |
Use for |
| Gyroid |
Equal strength all directions, good flow |
Mechanical parts, default choice |
| Grid |
Fast, simple |
Quick prints, decorative |
| Honeycomb / Adaptive Cubic |
Strong:weight ratio |
Functional prints with weight constraints |
| Lightning |
Fastest, just enough to support top layers |
Cosmetic prints, prototypes |
| Concentric |
Follows part outline |
Flexible TPU parts |
| Density |
Use for |
| 10–15% |
Decorative, prototypes |
| 20% |
Default — most functional parts |
| 30–40% |
Mechanical load, threaded inserts |
| 50%+ |
Structural / safety-critical (rare for FDM) |
| 100% |
Don't — use more walls instead, it's stronger and faster |
Wall count rule: For mechanical strength, add walls before adding
infill. 4 walls + 15% infill is stronger than 2 walls + 50% infill,
and prints faster.
Seam Placement
| Setting |
When to use |
| Aligned (default) |
Visible seam in one column — predictable but ugly |
| Random |
Seam scattered — less visible but adds tiny blobs |
| Nearest |
Slicer picks closest point — fastest but inconsistent |
| Painted seam |
Manual placement — best for cosmetic parts |
For visible parts, paint the seam onto a hidden edge (back, bottom corner).
Plate Management
- One plate = one print job. Use multiple plates for multi-stage projects.
- Use assembly view for multi-part designs to verify mating before
printing each piece.
- Auto-arrange is decent but doesn't know which faces are cosmetic;
manually orient critical parts before slicing.
Project Files (.3mf)
A .3mf project file bundles:
- The model(s)
- The plate layout
- The print profile
- Per-object settings (different material per object, support overrides, etc.)
Always save the .3mf for any project that might be reprinted. Drop it
in the project folder next to the source STL/STEP. Future-you will thank
present-you.
Naming convention: <project-slug>-<variant>.3mf, e.g.
controller-enclosure-v3.3mf.
Lessons Learned
Append every new lesson here as it's discovered. Format:
### YYYY-MM-DD — Short title followed by Symptom / Root Cause / Fix.
(No lessons documented yet — this section grows with use.)
Quick Reference — Slicer Setting Diagnosis
| Symptom |
Likely slicer cause |
Setting to adjust |
| Stringing |
Retraction too low |
+0.2 mm retraction; enable Z hop |
| Corner blobs |
Pressure advance not tuned |
Calibrate; lower outer wall speed |
| Top pillowing |
Too few top layers or low infill |
Top layers ≥ 5; infill ≥ 15% |
| Visible layer lines on curves |
Layer height too coarse |
Drop to 0.16 mm or 0.12 mm |
| Support scars on cosmetic surfaces |
Support Z distance too low |
Raise to 0.25 mm |
| Brim too hard to remove |
Brim-object gap too low |
Increase brim separation 0.05 mm |
| Multi-color bleeds at transitions |
Purge volume too low |
Raise per-transition purge volume |
| Slow print speed even at "fast" preset |
Outer wall speed locked low |
Bump outer wall speed (caution: surface quality trade) |
| Thin walls disappear |
Wall thickness < 1 nozzle width |
Redesign in CAD to ≥ 1.6 mm walls |
See Also
1---2name: print-bambu-studio3description: Bambu Studio slicer reference: profiles, key settings per material, support strategies, plate management, .3mf project files, and lessons learned. USE FOR: slicing in Bambu Studio, choosing print profiles, support placement, infill choice, seam tuning, multi-color printing, troubleshooting slicer-side issues.4license: MIT-05---67# Bambu Studio — Slicer Reference89## Purpose10Accumulated slicer knowledge for **Bambu Studio**.11Companion to `print-bambu-p2s` (printer hardware). Updated every time a12slicer setting causes a problem or solves one.1314> **Companion skills:**15> - `print-bambu-p2s` — printer hardware, calibration, maintenance16> - `cad-build123d-general` *(separate plugin)* — FDM design rules, if you17> model with build123d1819---2021## Profiles2223Bambu Studio ships with default profiles per (printer × nozzle × material).24Start there; tune from there.2526### Default profile naming convention2728`<Printer> <Nozzle> <Material> <Variant>`2930Examples:31- `Bambu Lab P2S 0.4 nozzle Generic PLA`32- `Bambu Lab P2S 0.4 nozzle Bambu PETG HF`33- `Bambu Lab P2S 0.4 nozzle Generic ABS @BBL P2S`3435When you tune a profile, **save as a new named profile** — never overwrite36the default. Use the format `<base> — <use case>`, e.g.37`P2S 0.4 PLA — Outdoor enclosures`.3839## Key Settings by Material4041### PLA (default workhorse)42| Setting | Value | Notes |43|---------|-------|-------|44| Nozzle temp | 220 °C | Lower (210) for finer detail; higher (230) for stronger bonds |45| Bed temp | 65 °C | Textured PEI |46| First layer speed | 50 mm/s | Slower = better adhesion |47| Print speed | 200 mm/s default | Bambu defaults are fine |48| Cooling | 100% from layer 2 | PLA loves cooling |49| Retraction | 0.8 mm | Default |50| Adaptive airflow | Cooling mode (auto) | P2S adaptive airflow draws cool external air — door stays closed (unlike P1S which needed cracking open) |5152### PETG53| Setting | Value | Notes |54|---------|-------|-------|55| Nozzle temp | 250 °C | Higher than PLA for layer adhesion |56| Bed temp | 80 °C | Up to 85 °C for large parts |57| First layer speed | 30 mm/s | PETG needs squish; go slow |58| Cooling | 30–50% | Too much cooling = weak layers |59| Retraction | 1.0 mm | Slightly more than PLA to combat stringing |60| Z hop | Enabled (0.4 mm) | Reduces blob drag across surfaces |61| Adaptive airflow | Cooling mode (auto) | Door closed; adaptive system handles drafts |62| Brim | 5–8 mm for parts > 100 mm | PETG shrinks; brim catches edge lift |6364### ABS / ASA65| Setting | Value | Notes |66|---------|-------|-------|67| Nozzle temp | 260 °C | |68| Bed temp | 100 °C | Max bed temp; needed for adhesion |69| First layer speed | 30 mm/s | |70| Cooling | 0% layer 1, then 20–30% | Too much cooling = warping |71| Adaptive airflow | Heating mode (auto) | P2S closes external intake; internal circulation traps heat |72| Brim | Always | ABS warps; brim is non-negotiable for any part |73| Ventilation | Required outside print | Fumes — P2S activated carbon filter handles VOCs but vent the room |7475### TPU (95A+)76| Setting | Value | Notes |77|---------|-------|-------|78| Nozzle temp | 230 °C | |79| Bed temp | 50 °C | |80| Print speed | 30–50 mm/s | Slow — TPU compresses in the feeder |81| Retraction | Disabled or minimal | TPU stretches; retraction = jams |82| Cooling | 50% | |83| AMS | DO NOT USE | Print from external spool only |84| Infill | Gyroid | Preserves flexibility |8586## Support Strategies8788| Support type | When to use |89|--------------|-------------|90| **None** | Overhangs ≤ 45°, bridges < 5 mm |91| **Normal (auto)** | Standard overhangs, mechanical parts where surface finish under support doesn't matter |92| **Tree (auto)** | Organic shapes, isolated overhangs, minimizing material |93| **Tree (manual)** | Complex parts where auto places supports in hard-to-remove spots |94| **PVA / BVOH (AMS)** | Captured features (e.g. interior of a hollow shape); pricey but clean |95| **Painted on (custom)** | When you need precise control — paint exactly where supports go |9697### Support tuning settings worth knowing9899| Setting | Default | When to change |100|---------|---------|----------------|101| Support overhang threshold | 30° | Lower (20°) for crisper overhangs; higher (45°) to use less material |102| Support / object Z distance | 0.2 mm | Lower = harder to remove but better surface; higher = easier remove but rough |103| Support pattern | Rectilinear | Crosshatch for stronger support; gyroid for organic parts |104| Top interface layers | 2 | More = smoother top of supported surface; uses more material |105106## Infill107108| Pattern | Strengths | Use for |109|---------|-----------|---------|110| **Gyroid** | Equal strength all directions, good flow | Mechanical parts, default choice |111| **Grid** | Fast, simple | Quick prints, decorative |112| **Honeycomb / Adaptive Cubic** | Strong:weight ratio | Functional prints with weight constraints |113| **Lightning** | Fastest, just enough to support top layers | Cosmetic prints, prototypes |114| **Concentric** | Follows part outline | Flexible TPU parts |115116| Density | Use for |117|---------|---------|118| 10–15% | Decorative, prototypes |119| 20% | Default — most functional parts |120| 30–40% | Mechanical load, threaded inserts |121| 50%+ | Structural / safety-critical (rare for FDM) |122| 100% | Don't — use more walls instead, it's stronger and faster |123124**Wall count rule:** For mechanical strength, **add walls before adding125infill**. 4 walls + 15% infill is stronger than 2 walls + 50% infill,126and prints faster.127128## Seam Placement129130| Setting | When to use |131|---------|-------------|132| **Aligned (default)** | Visible seam in one column — predictable but ugly |133| **Random** | Seam scattered — less visible but adds tiny blobs |134| **Nearest** | Slicer picks closest point — fastest but inconsistent |135| **Painted seam** | Manual placement — best for cosmetic parts |136137For visible parts, paint the seam onto a hidden edge (back, bottom corner).138139## Plate Management140141- One plate = one print job. Use multiple plates for multi-stage projects.142- Use **assembly view** for multi-part designs to verify mating before143 printing each piece.144- **Auto-arrange** is decent but doesn't know which faces are cosmetic;145 manually orient critical parts before slicing.146147## Project Files (.3mf)148149A `.3mf` project file bundles:150- The model(s)151- The plate layout152- The print profile153- Per-object settings (different material per object, support overrides, etc.)154155**Always save the .3mf** for any project that might be reprinted. Drop it156in the project folder next to the source STL/STEP. Future-you will thank157present-you.158159Naming convention: `<project-slug>-<variant>.3mf`, e.g.160`controller-enclosure-v3.3mf`.161162## Lessons Learned163164> **Append every new lesson here as it's discovered.** Format:165> `### YYYY-MM-DD — Short title` followed by Symptom / Root Cause / Fix.166167*(No lessons documented yet — this section grows with use.)*168169<!--170EXAMPLE FORMAT:171172### 2026-04-30 — PETG seam blobs on cylindrical part173174**Symptom:** Vertical line of small blobs running up a printed-cylinder175side, all aligned with the seam.176177**Root cause:** Pressure advance not calibrated for the new spool of PETG;178slicer's "Aligned" seam piles all the over-extrusion at exactly one column.179180**Fix:** Ran flow + pressure advance calibration in Bambu Studio for this181spool. Changed seam to "Painted" and placed it on a back-facing edge.182183**Lesson:** New PETG spool = new calibration. And for cosmetic cylinders,184always use painted seams.185-->186187## Quick Reference — Slicer Setting Diagnosis188189| Symptom | Likely slicer cause | Setting to adjust |190|---------|--------------------|--------------------|191| Stringing | Retraction too low | +0.2 mm retraction; enable Z hop |192| Corner blobs | Pressure advance not tuned | Calibrate; lower outer wall speed |193| Top pillowing | Too few top layers or low infill | Top layers ≥ 5; infill ≥ 15% |194| Visible layer lines on curves | Layer height too coarse | Drop to 0.16 mm or 0.12 mm |195| Support scars on cosmetic surfaces | Support Z distance too low | Raise to 0.25 mm |196| Brim too hard to remove | Brim-object gap too low | Increase brim separation 0.05 mm |197| Multi-color bleeds at transitions | Purge volume too low | Raise per-transition purge volume |198| Slow print speed even at "fast" preset | Outer wall speed locked low | Bump outer wall speed (caution: surface quality trade) |199| Thin walls disappear | Wall thickness < 1 nozzle width | Redesign in CAD to ≥ 1.6 mm walls |200201## See Also202203- Bambu Studio docs: <https://wiki.bambulab.com/en/software/bambu-studio>204- Companion skill: `print-bambu-p2s` (printer hardware)205- Design-side rules: `cad-build123d-general` *(separate plugin)* § FDM print rules
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