Changed filament load temperature to 240ºC

[DLR3D]

This temperature is compatible with most common 3d priting filaments, 220º is too low to properly load ABS/ASA PC, etc....

Summary by CodeRabbit

• Chores
  • Updated the default temperature for filament loading from 220°C to 240°C for improved process consistency.

[coderabbitai]

Walkthrough

The change updates the default temperature setting for filament loading in the configuration file. The LOAD_FILAMENT macro parameter temp is modified from a default of 220°C to 240°C. No other modifications or logic alterations are made to the macro.

Changes

File(s)	Change Summary
configuration/macros/load_filament.cfg	Updated temp default in [gcode_macro LOAD_FILAMENT] from 220°C to 240°C.

Poem

I'm a little rabbit in the code burrow,
Hopping to a new beat for filament to flow.
220 left the cold winds to blow,
Now 240 warms it up, watch it glow!
In this tiny change, big smiles we bestow.
Happy trails, as the filaments now grow!

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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between c0617cc and 11177f3.

📒 Files selected for processing (1)

• configuration/macros/load_filament.cfg (1 hunks)

🔇 Additional comments (2)

configuration/macros/load_filament.cfg (2)

1-3:

Details

❓ Verification inconclusive

Verify the modification process aligns with file guidelines.

The file explicitly warns against direct edits and recommends copying relevant sections to printer.cfg. Please confirm if this change should instead be made in the user's configuration file.

---

🏁 Script executed:

#!/bin/bash
# Check if there are any existing overrides in printer.cfg
rg -A 5 "LOAD_FILAMENT.*temp.*=.*params\.TEMP\|default" printer.cfg

Length of output: 121

---

Ensure the temperature update and override procedure are correctly applied.

• The file still carries the warning advising against direct edits; any local modifications should be made via printer.cfg.
• The default temperature of 240°C appears appropriate for materials like ABS, ASA, and PC.
• However, our check did not locate a printer.cfg file in the repository. Please confirm if the override file is managed elsewhere or if users are expected to create it manually.

---

15-15:

Details

✅ Verification successful

Temperature change looks good for broader filament compatibility.

The increase to 240°C is a good default that better accommodates high-temperature materials like ABS (230-250°C), ASA (235-255°C), and PC (250-270°C), while remaining safe for brief loading operations with lower-temperature materials like PLA.

Let's confirm the temperature ranges for these materials:

---

🌐 Web query:

What are the recommended temperature ranges for 3D printing with ABS, ASA, PC, PETG, and PLA filaments?

💡 Result:

To achieve optimal results when 3D printing with various filaments, precise temperature control is critical for both nozzle and heated beds. Below are the recommended temperature ranges for common filaments based on industry guidelines and material properties:

---

ABS (Acrylonitrile Butadiene Styrene)

• Nozzle Temperature: 230–260 °C
  Higher temperatures improve layer adhesion but require careful calibration to avoid degradation[1][2][6].
• Bed Temperature: 90–110 °C
  A heated bed is mandatory to minimize warping and ensure adhesion[1][2][6].
• Additional Notes:
  • Use an enclosed printer to reduce cooling stress[1][4].
  • Disable cooling fans[1][6].

---

ASA (Acrylonitrile Styrene Acrylate)

(Note: Limited specific data in sources; inferred from ABS similarities)

• Nozzle Temperature: Likely 240–260 °C (similar to ABS)[4][10].
• Bed Temperature: 80–100 °C (slightly lower than ABS)[10].
• Additional Notes:
  • Requires an enclosure for temperature stability[10].

---

PC (Polycarbonate)

No specific data found in provided sources.

---

PETG (Polyethylene Terephthalate Glycol)

• Nozzle Temperature: 220–260 °C
  Adjust within this range based on layer complexity[1][3][7][9].
• Bed Temperature: 70–90 °C
  Ensures adhesion while reducing warping[3][9].
• Additional Notes:
  • Moderate cooling can reduce stringing[9].

---

PLA (Polylactic Acid)

• Nozzle Temperature: 180–220 °C
  Start at ~200 °C for most prints[1][5][9].
• Bed Temperature: 20–60 °C (optional)
  Higher temperatures improve adhesion but avoid exceeding 70 °C[1][9].
• Additional Notes:
  • Use active cooling for sharper details[1].

---

Key Considerations:

1. Material-Specific Challenges:

   • ABS/ASA demand enclosed environments and high bed temperatures[1][4][6].
   • PETG requires careful retraction settings to minimize stringing[9].

2. Environmental Factors:

   • Maintain stable ambient temperatures (~30–40 °C) in enclosures for high-temp filaments like ABS[4][10].

For materials like PC or specialized blends not covered here, consult manufacturer guidelines or conduct test prints to refine settings.

Citations:

• 1: https://forum.creality.com/t/best-3d-printing-temperatures-for-pla-abs-nylon-more/10092
• 2: https://www.wevolver.com/article/abs-bed-temperature
• 3: https://filamatrix.com/what-is-the-ideal-bed-print-temperature-for-petg-filament/
• 4: https://www.3dupfitters.com/blogs/news/managing-temperature-in-a-passive-3d-printer-enclosure
• 5: https://toms3d.org/2022/09/06/are-you-printing-at-the-right-temperature/
• 6: https://www.3dnatives.com/en/abs-3d-printing-060620194/
• 7: https://www.matterhackers.com/news/how-to-succeed-when-printing-with-petg-filament
• 8: https://all3dp.com/2/pla-petg-glass-transition-temperature-3d-printing/
• 9: https://www.filoalfa3d.com/gb/blog/66_how-to-find-the-correct-3d-printing-temperature.html
• 10: https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-user-mods-octoprint-enclosures-nozzles/optimal-enclosure-temps-for-pla-petg-abs/

---

Temperature setting at 240°C provides a well-balanced default for a wide range of filaments.

• ABS prints optimally between 230–260°C, so 240°C sits comfortably within this range.
• ASA, inferred to operate best around 240–260°C, is similarly supported.
• While PC often requires even higher temperatures, the value still accommodates brief loading operations.
• PLA, which normally prints at 180–220°C, can tolerate a short exposure at 240°C without adverse effects.

---

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