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{{Required|Intro to Filament 3D Printing}}

[[Category:3D Printing]]

<div style="border-left: 4px solid #C00000; background: #FFEDED; padding: 10px; margin: 10px 0;">
'''⚠️ Engineering Materials Station — Read Before Use'''

Zephyrus requires different procedures than the other P1S machines. Filament
'''must be pre-dried'''. The Panda Breath chamber heater '''must be running'''
during engineering material prints. Do not use this machine for PLA — use Athena,
Bastet, Chantico, or Hanuman instead.
</div>

== Overview ==

'''Zephyrus''' is Asmbly's dedicated high-temperature engineering filament 3D printer.
It is a Bambu Lab P1S upgraded with:

* '''All-metal hotend''' — eliminates the PTFE temperature ceiling; supports nozzle temps up to 320°C
* '''Hardened steel 0.4mm nozzle''' — required for abrasive carbon fiber and glass fiber composites
* '''BIQU Panda CryoGrip Pro build plate''' — engineered for adhesion with nylon, CF, and high-temp materials
* '''BIQU Panda Breath''' — active 300W chamber heater, HEPA + activated carbon air filter, and filament dryer
* '''Sovol SH02 filament dryer''' — dedicated inline dryer for keeping hygroscopic filaments print-ready

Zephyrus does '''not''' have an AMS. It uses a single external spool via the rear spool holder,
fed through the Sovol SH02.

== Supported Materials ==

The following materials are authorized on Zephyrus. They are '''not permitted''' on the other P1S machines.

{| class="wikitable"
|-
! Material !! Nozzle Temp !! Bed Temp !! Chamber Heat !! Notes
|-
| PPA-CF (e.g. Siraya Tech Fibreheart) || 280–320°C || 100–120°C || Required || Primary engineering material; must be dry
|-
| PPA (unfilled nylon) || 270–300°C || 90–110°C || Recommended || Highly hygroscopic; dry 6–12h before printing
|-
| PA6-CF / PA12-CF || 270–300°C || 90–110°C || Required || Similar to PPA-CF; warp-prone without chamber heat
|-
| ABS / ASA || 240–260°C || 90–100°C || Strongly recommended || Dry thoroughly
|-
| ABS-CF / ABS-GF || 250–270°C || 100–110°C || Required || Abrasive; hardened nozzle mandatory
|-
| PC (Polycarbonate) || 260–280°C || 100–110°C || Strongly recommended || Very warp-prone; dry thoroughly
|-
| PET-CF / PETG-CF || 250–270°C || 70–90°C || Recommended || Less warp-prone than nylons; still dry first
|-
| TPU (shore 95A+) || 230–240°C || 30–50°C || Not needed || Dry thoroughly
|-
| PLA || 190–220°C || 35–65°C || Not needed || '''Avoid on Zephyrus''' — use Athena/Bastet/Chantico/Hanuman for PLA. Brass nozzles on those machines give better PLA results.
|}

== Equipment: BIQU Panda Breath ==

The Panda Breath is mounted inside Zephyrus and serves two functions: active chamber heating and air filtration.

=== Startup ===
# The Panda Breath should already be on. If needed, power on the unit using the switch inside the printer.
# The default mode is '''Auto''' — it will activate heating and filtration automatically when the printer's bed temperature exceeds the configured threshold (set to 80°C).
# You do not need to manually start it for a normal print. Confirm the indicator light shows '''Auto''' mode is active.
# If you need to force it on immediately (e.g. for a long chamber preheat), press the '''On''' button to enter Forced On mode.

=== During a Print ===
* The Panda Breath will maintain chamber temperature and filter VOCs and particulate continuously throughout the print.
* For engineering filaments like PPA-CF and PC, allow the chamber to reach at least 45–50°C before the first layer begins. You can monitor chamber temp on the Panda Breath's display or via its web UI.
* Do '''not''' open the printer door during a print with engineering filaments — this will cause a thermal shock and risk delamination or warping.

=== Shutdown ===
* The Panda Breath will stop automatically when the bed cools below the configured threshold.
* You may also press '''Off''' to stop it manually. Leave the unit in Auto mode when you are finished printing.
* Leave the unit powered on at the switch between sessions — it draws no meaningful standby power.

== Equipment: Sovol SH02 Filament Dryer ==

The Sovol SH02 is a dedicated filament dryer mounted adjacent to Zephyrus and should '''always be used''' when printing hygroscopic filaments (all nylons, PPA, PPA-CF, PC, and CF composites). You will have a much better time printing with dry filament!

=== Loading Filament ===
# Place your spool into the SH02's spool holder.
# Thread the filament out of the SH02's PTFE exit tube and into the Zephyrus rear spool port as normal.
# Set the temperature on the SH02 screen:
#* PPA-CF, PA6-CF, PA12-CF: '''70–80°C'''
#* ABS-CF, PC, ABS: '''60–70°C'''
#* PETG-CF, PET-CF: '''55–65°C'''
#* TPU: '''45–50°C'''
# Power on the SH02 and allow it to pre-dry the filament for '''at least 2 hours''' before printing if the filament has been stored after opening. If freshly opened from a sealed bag with desiccant, 30 minutes is sufficient.
# Leave the SH02 running throughout the entire print to maintain filament dryness.

=== Signs of Wet Filament ===
If you hear popping, crackling, or hissing from the nozzle area, the filament is too wet. Stop the print, remove the filament, and dry it for 6–12 hours before continuing.

=== After Printing ===
* Return filament to a sealed bag with fresh desiccant, or leave it in the SH02 at reduced temperature if you plan to continue printing the next day.
* Power off the SH02 when not in use for extended periods.

== Pre-Print Checklist ==

Before starting any engineering material print on Zephyrus, confirm:

# ☐ '''Filament is dry''' — pre-dried per SH02 temperature/time chart above, or freshly opened from sealed packaging
# ☐ '''SH02 is running''' — set to the correct temperature for your filament, threaded into the rear spool port
# ☐ '''Panda Breath is in Auto mode''' — confirm indicator shows active; it will start when bed heats
# ☐ '''Correct build plate selected in BambuStudio''' — use the Engineering Plate or Textured PEI profile
# ☐ '''Attend the first 10–15 minutes''' — stay at the machine until first layer adhesion is confirmed before leaving unattended

== Bed Adhesion for Engineering Filaments ==

The BIQU CryoGrip Pro plate provides mechanical adhesion through its textured surface. This is the BLUE build plate, and should only be used on Zephyrus.

* Clean the plate with IPA between sessions as normal.

== Cleanup ==

In addition to the [[BambuLab_P1S#Cleanup|standard P1S cleanup procedures]]:

* '''Wipe the build plate''' with IPA after each engineering material print. Nylon residue left on the plate can cause bonding issues on the next print.
* '''Check the Panda Breath filter''' — if you notice reduced airflow or persistent odor, the filter cartridge may need replacement. Report this to a steward.
* '''Do not leave filament loaded in the hotend at temperature''' — if you pause a print and leave, unload the filament or start the print before the hotend cools and plugs.
* '''Return your filament spool to a sealed bag''' if you are done printing and do not intend to return within a day.

== Troubleshooting ==

{| class="wikitable"
|-
! Symptom !! Likely Cause !! Fix
|-
| Popping / crackling at nozzle || Wet filament || Stop print; dry filament 6–12h at 70–80°C; restart
|-
| First layer not sticking || Insufficient adhesion || Let bed cool; clean with IPA; restart
|-
| Warping / corners lifting || Insufficient chamber heat or no brim || Confirm Panda Breath is running; add brim in slicer; increase bed temp
|-
| Layer delamination mid-print || Door opened during print, or chamber too cold || Restart with Panda Breath confirmed active; do not open door
|-
| Grinding / extruder clicking || Clog or filament too wet || Abort print; load filament at a high temperature (300°C); dry filament; try again
|-
| Nozzle clog (won't extrude) || Filament degraded in nozzle, or wrong temp || Abort print; load filament at a high temperature (300°C); if persistent, notify a steward — nozzle may need replacement
|-
| Panda Breath not starting || Bed temp threshold not reached, or unit in Off mode || Manually press On; confirm Auto threshold is set below your bed target
|}

For issues not covered here, contact a steward or post on [https://yo.asmbly.org/c/spaces/3dprinters/11 Discourse].

== Resources ==

* [[BambuLab_P1S|Back to BambuLab P1S main page]]
* [https://wiki.bambulab.com/en/p1 Bambu Lab P1 Wiki]
* [https://global.bttwiki.com/Panda_Breath.html BIQU Panda Breath Wiki]
* [https://siraya.tech/pages/siraya-tech-fibreheart-paht-cf-ppa-based-tds Siraya Tech PPA-CF Technical Data Sheet]

BambuLab P1S/Zephyrus - Revision history

Flowmage: Created page with "{{Required|Intro to Filament 3D Printing}} Category:3D Printing '''⚠..."

Flowmage: Created page with "{{Required|Intro to Filament 3D Printing}} Category:3D Printing
'''⚠..."