Initial layer speed
How fast the walls and outlines of the first layer, the one that sticks to the plate, are printed. Slower means better grip; faster means it finishes sooner.
How it works
The first layer is the only one that rests on the plate instead of on plastic already printed. If the nozzle moves fast, the bead of plastic doesn't have time to squish down and stick, and the part can come loose halfway through the print. That's why it goes much slower than the rest: 50 mm/s, compared with 200–300 mm/s for the walls on the other layers.
This value controls the walls and outline of the first layer; the infill on that layer has its own speed.
When to change it
- A tall, narrow tower, or a box whose corners lift off the plate: lower it to 30 or 40 mm/s.
- A large flat tray on a clean textured plate: you can raise it to 60 or 80 mm/s without trouble.
Typical values
| Value | What for |
|---|---|
| 30 | Maximum grip; tricky parts |
| 50 | Defaultdefault |
| 80 | Grippy plates, parts with a big base |
Watch out for
- If the first layer won't stick, check the “Initial layer height”, how clean the plate is and the bed temperature first: speed comes last.
- The first-layer acceleration (how quickly the nozzle picks up speed) is also set separately, and it's also low by default.
Goes well with
What Bambu Studio saysits help card, quoted
What Bambu Studio says
Speed of initial layer except the solid infill part
Bambu Studio tooltip for this setting · AGPL-3.0
Read more at the official source
In your profile0.20mm Standard @BBL A1 · 50 mm/s
In Bambu Studio, the profile 0.20mm Standard @BBL A1 sets it to50 mm/s
Helps with
In other slicers
- Orca Slicer
- First layerSpeed › First layer speed
- PrusaSlicer
- First layer speedSpeed › Modifiers
- Cura
- Initial Layer Print SpeedSpeedIn Cura it also applies to the solid infill of the first layer.
Names taken from each program's code (Orca Slicer 2.4.2, PrusaSlicer 2.9.6, Cura 5.13.0). Credits