Bridge direction
Which way the lines run when the printer stretches a bridge across thin air. At 0 the slicer picks on its own, and it's almost always right.
How it works
A bridge is plastic printed over nothing: a lid between two supports, the ceiling of a slot. The lines need to run from support to support so they pull tight and don't sag. At 0, the slicer measures each bridge and picks the shortest direction between supports.
If you enter another value, every external bridge uses that angle, whether it fits or not. 180° counts as 0, meaning automatic.
When to change it
- The ceiling of a box with diagonal supports, or an oddly shaped slot, comes out sagging because the shape fools the automatic calculation: set the angle by hand for that part (for example, 45° or 90°).
- Everything else: leave it at 0.
Typical values
| Value | What for |
|---|---|
| 0 | Automatic (default)default |
| 90 | Fixed, from one support straight across along Y |
| 45 | Fixed, diagonal |
Watch out for
- A fixed angle applies to every external bridge in the part; what fixes one can ruin another.
- If bridges sag even though the direction is right, the problem is the bridge speed, the flow (how much plastic comes out) or the cooling.
Goes well with
What Bambu Studio saysits help card, quoted
What Bambu Studio says
Bridging angle override. If left to zero, the bridging angle will be calculated automatically. Otherwise the provided angle will be used for external bridges. Use 180°for zero angle.
Bambu Studio tooltip for this setting · AGPL-3.0
Read more at the official source
In your profile0.20mm Standard @BBL A1 · 0°
In Bambu Studio, the profile 0.20mm Standard @BBL A1 sets it to0°
Helps with
In other slicers
- Orca Slicer
- External bridge infill directionStrength › Advanced
- PrusaSlicer
- Bridging angleInfill › Advanced
- Cura
- No clear equivalent.
Names taken from each program's code (Orca Slicer 2.4.2, PrusaSlicer 2.9.6, Cura 5.13.0). Credits