Home/H2D/Polymaker/PolySonic PLA Pro
Polymaker · overlaid on Bambu's PLA Basic

Polymaker PolySonic PLA Pro for the H2D

with a 0.4 mm nozzle

The five values to type into Bambu Studio for a Polymaker PolySonic PLA Pro spool — the big one first.

Bambu profiles its own filament, not Polymaker's. These start from Bambu's PLA Basic reference and apply Polymaker'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 — Polymaker publishes none ⚠ clamped — capped below your target speed
Polymaker · PolySonic PLA Pro High-speed / tough product page
Nozzle210 °C
Density1.23 g/cm³
Drying55 °C / 6 h
Mfr speed50–300 mm/s
Mfr bed30–60 °C
Same dual-mode profile as PolySonic but tougher
manufacturer source ↗

Is this right for your spool?

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

Against Bambu stock
flow 0.98 · ceiling 21 mm³/s
Source
product page · manufacturer ↗

Why these numbers

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

Same dual-mode profile as PolySonic but tougher

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 Polymaker PolySonic PLA Pro 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

Polymaker PolySonic PLA Pro for the X1 Carbon
/p/x1c/polymaker/polysonic-pla-pro
Polymaker PolySonic PLA Pro for the A1
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Polymaker PolySonic PLA Pro for the A1 mini
/p/a1_mini/polymaker/polysonic-pla-pro
3D-Fuel Tough Pro PLA+ for the H2D
/p/h2d/3d-fuel/tough-pro-pla
Amazon Basics PLA Filament 1.75 mm for the H2D
/p/h2d/amazon-basics/pla-filament-1-75-mm
Amazon Basics PLA Filament 1.75 mm (1.25 kg) for the H2D
/p/h2d/amazon-basics/pla-filament-1-75-mm-1-25-kg