What it is
Fuzzy skin is not a texture overlay — it changes the toolpath so the nozzle makes many small direction changes along the outer wall. The result is a roughened surface that looks “cast” or “weathered.”
Controlling “density”
Bambu Studio doesn’t label a single “density” slider. Density is controlled primarily by how close the fuzzy points are.
- Fuzzy skin point distance (the density control): smaller distance = denser fuzz; larger distance = less dense.
- Fuzzy skin thickness (how aggressive): larger thickness = deeper/rougher texture, but more lateral force.
Practical tip: If you want “more fuzz,” adjust point distance first. Increasing thickness often makes walls wobble before it looks better.
Fuzzy Skin Painting Tool
Fuzzy Skin painting applies (or excludes) fuzzy skin on specific surfaces instead of enabling it for the entire model. Use this when you only need texture on a roof, one face, or a decorative area.
Reducing dynamic excitation / vibration induced by rapid toolpath direction changes
The “shaking” you see is best described as dynamic excitation (toolpath jitter): rapid direction changes repeatedly push sideways on the wall. Thin, tall, and on-edge parts amplify the effect.
Example: barn roof printed on-edge
Barn roof panels for the chair lift are often printed vertically on their edge to preserve detail. With fuzzy skin enabled, the combination of height + thin walls + aggressive motion can cause visible wall movement and drifting during the print.
Settings that reduce vibration (priority order)
-
Increase Fuzzy skin point distance (reduces how often the wall is “hit”).
Typical stable range (0.4 nozzle):0.45 – 0.6 mm -
Reduce Fuzzy skin thickness (reduces how hard the wall is pushed).
Suggested ceiling for thin walls:≤ 0.2 mm -
Lower outer wall speed (Other layers speed).
For thin vertical parts:40 – 60 mm/s(200 mm/s is far too aggressive for fuzzy skin) -
Lower outer wall acceleration (Speed → Acceleration).
If currently very high (e.g., 5000 mm/s²), try:800 – 1500 mm/s²
Safe starting preset (thin, vertical parts)
- Fuzzy thickness:
0.2 - Fuzzy point distance:
0.5 - Outer wall speed:
50 mm/s - Outer wall acceleration:
1000 mm/s²
Key takeaway: reduce how often the nozzle excites the wall before reducing how hard it excites it.
Screenshots
Add screenshots here once copied into the assets folder.
- Fuzzy Skin settings section
- Other layers speed (Outer wall)
- Acceleration (Outer wall)
- Fuzzy Skin painting tool UI