Home/H2DP/ColorFabb/TPU 85A
ColorFabb · overlaid on Bambu's TPU 95A

ColorFabb TPU 85A for the H2DP

with a 0.4 mm nozzle

The five values to type into Bambu Studio for a ColorFabb TPU 85A spool — the big one first.

Bambu profiles its own filament, not ColorFabb's. These start from Bambu's TPU 95A reference and apply ColorFabb's published specs where available.
Max volumetric flowupdates live
3.6 mm³/s The single value Bambu Studio can’t guess for you
Effective top speed
43mm/s
you asked for 300
target 300 → clamped
Pressure advance K
0.05
starting point — refine on-machine
Flow ratio
1
Bambu base (inherited)
Retraction length
1.2mm
Bambu base (inherited)
hotend ceiling 3.6 mm³/s · Bambu default — ColorFabb publishes none ⚠ clamped — capped below your target speed
ColorFabb · TPU 85A Flexible 85A product page
Nozzle230 °CBambu base · not published
Densitynot published
Mfr speednot published
Shore85A
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 1 · ceiling 3.6 mm³/s
Source
product page · manufacturer ↗

Why these numbers

ColorFabb TPU 85A starts from Bambu's TPU 95A reference; ColorFabb'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 ColorFabb TPU 85A 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.