Home/H2DP/SUNLU/High Speed PLA
SUNLU · overlaid on Bambu's PLA Basic

SUNLU High Speed PLA for the H2DP

with a 0.4 mm nozzle

The five values to type into Bambu Studio for a SUNLU High Speed PLA spool — the big one first.

Bambu profiles its own filament, not SUNLU's. These start from Bambu's PLA Basic reference and apply SUNLU's published specs where available.
Max volumetric flowupdates live
21 mm³/s The single value Bambu Studio can’t guess for you
Effective top speed
250mm/s
you asked for 300
target 300 → clamped
Pressure advance K
0.02
starting point — refine on-machine
Flow ratio
0.98
Bambu base (inherited)
Retraction length
0.8mm
Bambu base (inherited)
hotend ceiling 21 mm³/s · Bambu default — SUNLU publishes none ⚠ clamped — capped below your target speed
SUNLU · High Speed PLA High-speed tds
Nozzle210 °C
Densitynot published
Drying70–80 °C / 4 h
Mfr speed50–600 mm/s
Mfr bed50–60 °C
Cool / PLA plate; fan capped at 70%; engineered for 200+ mm/s printers
manufacturer source ↗

Is this right for your spool?

Here's how sure we are — and what to watch.

!
H2DP values are provisional
These envelope/flow values still need verifying against Bambu's shipped profile (SPEC.md §10).
Against Bambu stock
flow 0.98 · ceiling 21 mm³/s
Source
tds · manufacturer ↗

Why these numbers

SUNLU High Speed PLA starts from Bambu's PLA Basic reference; SUNLU's published specs are overlaid where available, and everything else stays at Bambu's calibrated default.

Cool / PLA plate; fan capped at 70%; engineered for 200+ mm/s printers

Treat these as a starting point — run a flow-test cube and Bambu's Flow Dynamics calibration after import for the last few percent.

Open in the wizard → change printer, nozzle or speed

Download the SUNLU High Speed PLA profile

A .zip with the Bambu Studio .json and a Markdown summary of every field.

Open in the wizard
i
Then calibrate in the slicer. Run Device → Calibration → Flow Dynamics after import to lock in the K-factor.

More combinations

SUNLU High Speed PLA for the X1 Carbon
/p/x1c/sunlu/high-speed-pla
SUNLU High Speed PLA for the A1
/p/a1/sunlu/high-speed-pla
SUNLU High Speed PLA for the A1 mini
/p/a1_mini/sunlu/high-speed-pla
3D-Fuel Tough Pro PLA+ for the H2DP
/p/h2dp/3d-fuel/tough-pro-pla
Amazon Basics PLA Filament 1.75 mm for the H2DP
/p/h2dp/amazon-basics/pla-filament-1-75-mm
Amazon Basics PLA Filament 1.75 mm (1.25 kg) for the H2DP
/p/h2dp/amazon-basics/pla-filament-1-75-mm-1-25-kg