The support thing can cause issues if you are using another material, especially on single nozzle machines as the filament cools between layers, maybe if I had a tool changer or nozzle swapper it might be easier, but for a single nozzle machine that takes a minute to change and purge filaments I'm deffo going to be looking at printing whatever I can without supports, might mean a slight change in the plan for what gets printed in what, but shouldn't be too much of an issue, will just have to look at the different parts of the model I am printing and decide from there...
PA6-CF
- Thread starter Trig
- Start date
I use a Bambu X1C which is single nozzle and takes what feels like an age to switch filaments sometimes 
when I need supports, I only use support interface material now because the finish is just so damn good. I don't disagree that it could cause issues with layer time and layer cooling between changes but I think it's such a small thing it's almost a non-issue for most filaments, especially if you have a chamber and the overall print environment is stable
when I need supports, I only use support interface material now because the finish is just so damn good. I don't disagree that it could cause issues with layer time and layer cooling between changes but I think it's such a small thing it's almost a non-issue for most filaments, especially if you have a chamber and the overall print environment is stable
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Associate
- Joined
- 18 Dec 2008
- Posts
- 588
I am new to 3D Printing and need to print some PA6-GF.
Should I go with the recommended settings from Bambu Labs or use the following according to Copilot?
I have the P2S
Should I go with the recommended settings from Bambu Labs or use the following according to Copilot?
I have the P2S
Code:
[material]
name = PA6-GF
nozzle = 0.4 mm tungsten carbide
drying_required = yes
dry_temp = 80–90 C
dry_time = 8–12 h
storage = AMS-HT or sealed drybox <10% RH
[ams]
mode = AMS-HT
humidity_target = <10% RH
feed_rate_limit = on
note = PA6-GF is borderline for AMS; keep AMS heater active
[temps]
nozzle_temp = 280–290 C
bed_temp = 80 C
chamber_temp = 50–60 C
cooling = 0–10%
preheat_chamber = 30 min
[speeds]
outer_wall = 30–40 mm/s
inner_wall = 45–55 mm/s
infill = 55–70 mm/s
max_volumetric_flow = 4–5 mm³/s # critical for 0.4 mm
travel_speed = 200 mm/s
[retraction]
distance = 0.8 mm
speed = 35 mm/s
z_hop = off unless stringing persists
[adhesion]
method = engineering_plate + glue_stick
glue_layer = thin, matte, even
brim = 10–15 mm
note = most stable PETG-free option
[mechanical]
flow_rate = 0.97–1.00
line_width = 0.48 mm
layer_height = 0.20–0.24 mm
first_layer_height = 0.22–0.24 mm
first_layer_speed = 20 mm/s
[warp_control]
draft_shield = on
chamber_stabilization = on
bed_preheat_time = 30 min
avoid_fan = yes
orient_parts_vertically_when_possible = yes
[quality_tuning]
if_underextrusion:
+5 C nozzle
reduce_speed_by = 10%
reduce_volumetric_flow = -0.5 mm³/s
if_warping:
increase_chamber_temp = +5 C
increase_brim = +5 mm
[post_processing]
anneal = optional
anneal_temp = 70–80 C
anneal_time = 2–4 h
cool_down = slow, enclosure closed
[notes]
- 0.4 mm nozzle works well but requires strict flow limits.
- AMS-HT must stay dry; PA6-GF absorbs moisture aggressively.
- Re-dry filament every 4–6 h of exposure.
- Slow, steady extrusion is key for fibre alignment and strength.
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