Exporting to OrcaSlicer, Bambu Studio, or PrusaSlicer

If your design uses positives only (no holes / no negatives) and you're handing it to a friend, STL is fine.

If you have any subtracts, embossed text, multi-colour parts, or want the slicer to recognise your individual primitives — 3MF. ForgeSlicer's 3MF export keeps positives + negatives as separate parts so the slicer composes them correctly.

1. In ForgeSlicer, hit File → Export → 3MF. Save to your desktop.

2. Open OrcaSlicer. Drag the .3mf onto the build plate. It auto-fills the modifier roles (negative parts become subtract cuts).

3. Pick your printer profile, slice, send.

Pro tip: ForgeSlicer can also slice directly using a server-side OrcaSlicer engine — the workspace's Engine selector lets you switch between in-browser and server-side without re-exporting.

1. Export 3MF from ForgeSlicer.

2. Bambu Studio → drag onto the plate. The orientation and part hierarchy carry over.

3. Bambu auto-arranges multi-part designs on the plate. For colour-printed parts (AMS), you can colour-tag your primitives in Bambu Studio after import.

1. Export 3MF (PrusaSlicer's 3MF reader is solid — STL also works).

2. PrusaSlicer → drag in. Negatives import as Modifier meshes set to Cut — already correct.

3. Slice. PrusaSlicer's per-object settings dialog lets you tune supports per part — useful for the rare cases where one negative needs a different treatment.

ForgeSlicer's Open in slicer button supports any slicer with a custom URL handler (e.g. `orcaslicer://`). The Help dialog → Slicer hand-off has the exact deep-link strings.