Measuring Tip: Measure from the center of your nozzle to the furthest point of your print head (fan shroud, cable management, etc.) and add a small safety margin.
Extruder Clearance
Define the physical dimensions of your extruder for sequential printing mode.
What is Sequential Printing?
Sequential printing (also called "one at a time" printing) completes each object fully before moving to the next one. This requires OrcaSlicer to know your extruder's physical dimensions to avoid collisions with already-printed objects.
Extruder Clearance Radius
- Parameter
extruder_clearance_radius- Unit
- Millimeters (mm)
- Default
- 45mm
- Description
- The horizontal radius around the extruder that must remain clear. This is typically the widest point of your print head assembly.
Extruder Clearance Height
- Parameter
extruder_clearance_height- Unit
- Millimeters (mm)
- Default
- 40mm
- Description
- The vertical clearance from the nozzle tip to the lowest point of the gantry or other components that could collide with printed objects.
Common Extruder Clearance Values
| Printer | Radius (mm) | Height (mm) |
|---|---|---|
| Bambu Lab X1C | 55 | 40 |
| Bambu Lab P1S | 55 | 40 |
| Prusa MK3S+ | 45 | 60 |
| Prusa MK4 | 45 | 60 |
| Creality Ender 3 | 40 | 55 |
| Voron 2.4 | 50 | 45 |
Sequential Printing Limitations
When using sequential printing mode, objects must be spaced apart based on clearance values:
- Horizontal spacing: Objects must be at least 2x the clearance radius apart
- Height limit: Objects taller than the clearance height cannot be printed sequentially
- Print order: OrcaSlicer automatically determines the optimal print order
Warning: Incorrect clearance values can cause collisions during sequential printing, potentially damaging your printer or ruining the print.