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 — KingRoon publishes none ⚠ clamped — capped below your target speed

KingRoon · Silk Multicolor PLA Silk tri-colour product page

Nozzle220 °C

Density1.32 g/cm³

Drying55 °C / 8 h (oven only)

Mfr speed≤250 mm/s

Mfr bed35–45 °C

Bed temp very low (35–45 °C with glue stick); Vicat 56 °C; HDT 53 °C; melting 152 °C; tensile 27 ±4 MPa; elongation 3.5%; bending 66 MPa; modulus 2370 MPa; impact 24.5 kJ/m² (notably high); melt index 20.5; Engineering plate NOT recommended; 15+ tri-colour combos (Unicorn/Macaron/Candy/Mermaid styles)

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

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

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 KingRoon Silk Multicolor PLA profile

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

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