Browser-local print planning
Nozzle, Layer Height and Wall Planner
Keep nozzle diameter, extrusion line width and layer height separate. Estimate equal-width wall lines before checking the slicer preview.
Plan your next job
These editable example values are illustrative, not physical print measurements.
Results update as you edit.
Your planning result
- Approximate equal-width lines
- 3
- Nominal resulting thickness
- 1.35 mm
- Difference from intended thickness
- 0.05 mm
- Layer height / nozzle diameter
- 50%
The planner rounds intended wall thickness divided by chosen line width to the nearest positive whole line count. This is equal-width arithmetic; inspect generated slicer paths before choosing a CAD wall.
The layer is within that starting upper limit. This does not establish a suitable minimum layer height or guarantee this profile.
Method and interpretation
The nearest positive whole line count is round(intended wall thickness / chosen line width); nominal thickness is line count × line width. This is equal-width line arithmetic. The 80% nozzle-diameter layer check follows Prusa starting guidance.
This is equal-width line arithmetic. Your slicer may use variable widths, overlap and gap filling, so inspect the generated paths before choosing a wall dimension. For 1.3 mm requested and 0.45 mm chosen width, the nearest whole count is three: 1.35 mm nominal total.
Method and reference documentation - reference reviewed 4 October 2026. Profile-specific limits still require their own evidence.
Continue preparing your print
Interpret wall thickness for the feature's use. If you already have a mesh, screen its sampled geometry with the STL checker or 3MF checker.
Actual thin-wall slicer control
PrusaSlicer 2.9.6 was run on three owned bars (0.3, 0.45 and 0.9 mm wide) with 0.4 mm nozzle, 0.2 mm layers, 0.45 mm line width, two perimeters and no infill. Classic reported 83.41 mm filament and 3m 32s; Arachne reported 142.10 mm and 5m 28s. The perimeter engine changes what gets traced. These are software estimates, not physical prints or recommended printer settings.
Inspect the actual toolpaths using the Classic and Arachne preview files. Do not print the CLI demonstration exports.