chatGPT4: helpful YouTube test using Bambu Lab X1C + Inland PETG+
https://youtu.be/tyOH_Vqflko that focuses on settings to minimize stringing, improve layer adhesion, and achieve a clean finish:
Recommended Print Settings for Inland PETG+ on the X1 Series
1. Temperatures
- Nozzle: 245–255 °C
- A sweet spot: 250 °C for general prints, drop to 245 °C if you notice stringing or blobs. Wikipedia+12YouTube+12Bambu Lab Community Forum+12Bambu Lab Community Forum+9Bambu Lab Community Forum+9The Maker Sphere+9
- Bed: 80–85 °C
- Ensures strong first-layer adhesion without overheating the plate. Bambu Lab Community Forum+1The Maker Sphere+1Bambu Lab Community Forum+1Bambu Lab Community Forum+1
2. Speed & Volumetric Flow
- Limit volumetric flow to around 10 – 12 mm³/s to avoid under-extrusion.
- For X1C: Outer walls ~200 mm/s, inner walls ~300 mm/s (OCTO / Default PETG mode) works well. Bambu Lab Community ForumBambu Lab Community Forum+10The Maker Sphere+10Bambu Lab Community Forum+10
3. Cooling & Layer Management
- First layer: 0% fan
- Layer 2+: 30–50% for good strength; bump up to 70–100% for better bridges/details. Bambu Lab Community Forum
- Use “slow down for better cooling” or increase minimum layer time (e.g. 12–15 s) to prevent overheating on small-area layers. Bambu Lab Community Forum
4. Retraction & Z‑Hop
- Retraction:
- 2–4 mm at ~35 mm/s for direct drive.
- Increase in 0.5 mm increments if stringing persists. Bambu Lab Community Forum+1Bambu Lab Community Forum+1
- Z‑Hop: Enabled (0.4 mm) to prevent nozzle knocking and dragging that causes blobs or shifted layers.
5. Filament Preparation & Bed Prep
- Dry Inland PETG+: 55 °C for 8–12 hrs—moisture leads to stringing, bubbling, and blobs. Bambu Lab Community Forum+1Bambu Lab Community Forum+1YouTube+3The Maker Sphere+3Bambu Lab Community Forum+3
- Bed prep: Clean the textured PEI or engineering plate with isopropyl alcohol just before printing. Glue stick optional but rarely needed if the surface is clean. Bambu Lab Community Forum+1Bambu Lab Community Forum+1
6. Calibration & Tuning
- Run a temperature tower to dial in the ideal nozzle temps especially for your specific color/batch.
- Calibrate flow & volumetric speed using X1C calibration tools or OrcaSlicer’s calibration passes.
- For challenging prints (tall, thin, hollow), fine-tune minimum layer time and cooling to avoid parts getting knocked over. Bambu Lab Community Forum+7Bambu Lab Community Forum+7Bambu Lab Community Forum+7Bambu Lab Community Forum+10Bambu Lab Community Forum+10Bambu Lab Community Forum+10
X1C-Specific Tweaks (From community insights)
- X1’s default generic PETG profile can be too fast/cool—tune nozzle to 255–265 °C and bed to 80 °C, slow volumetric flow to ~10–11 mm³/s. Bambu Lab Community Forum+6The Maker Sphere+6Bambu Lab Community Forum+6
- Switch inner wall generator to Arachne for improved surface finish. The Maker Sphere+1Bambu Lab Community Forum+1
- Keep enclosure well-ventilated; too much ambient heat (above ~30 °C) can lead to poor adhesion. Door open or vented is ideal. Bambu Lab Community Forum
Quick Settings Summary (Start Here)
| Setting | Value |
|---|---|
| Nozzle Temp | 245–255 °C |
| Bed Temp | 80–85 °C |
| Print Speed | Outer: ~200 mm/s; Inner: ~300 mm/s |
| Volumetric Flow Limit | ~10–12 mm³/s |
| First-layer Fan | 0% |
| Layer 2+ Fan | 30–50% (up to 100% for details) |
| Retraction | 2–4 mm @ ~35 mm/s |
| Z‑Hop | Enabled (~0.4 mm) |
| Min Layer Time | ~12 s (or enable slow-down) |
Final Tips:
- Tune gradually: do a small test print (like a cube or Benchy) before going large.
- Track batch differences: each Inland PETG+ spool can have slight variation—check the product data: nozzle 210–250 °C, bed 80–100 °C Wikipedia+1Bambu Lab Community Forum+1Bambu Lab Community Forum+2Bambu Lab Community Forum+2Bambu Lab Community Forum+2Bambu Lab Community Forum+1Bambu Lab Community Forum+1Bambu Lab Community ForumBambu Lab Community Forum+1YouTube+1
- Iterate: based on print results, tweak one variable at a time—temperature, retraction, cooling, etc.