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Pre-sliced files in a project: sliced 3MF (.gcode.3mf) and G-code

Projects in SimplyPrint lets you keep files you sliced yourself, in Bambu Studio, OrcaSlicer or PrusaSlicer, and print them exactly as they are. This guide covers what happens to a sliced 3MF (.gcode.3mf) or G-code file in a project.

Projects is included in the Print Farm and Enterprise plans.

Many farms already slice in their own slicer and don't want that work redone. This guide is part of the Projects documentation.

Two kinds of sliced file
A sliced file with no models
Which printer it was sliced for
A sliced 3MF that also holds its models
Adding your own sliced file to a plate
Changing a pre-sliced plate
Printing pre-sliced plates

Two kinds of sliced file

G-code only: a .gcode, .bgcode, .ufp, or a .gcode.3mf that holds G-code but no models, such as Bambu Studio's export of a sliced plate.
A sliced 3MF with its models: a .gcode.3mf that holds the models and settings as well as the G-code for its plates.

Either can be added when you create a project or later, with Add > Parts (shown as Print files in a project made of sliced files only).

A sliced file with no models

Each plate in it becomes a project plate with one print file, for the printer it was sliced for. Nothing about it is sliced, arranged or recolored. The plate says so:

"Sliced in (slicer) for (printer). SimplyPrint never slices it again, and nothing in the project makes it out of date. To change it, slice it again in your slicer and upload the new version."

The project's summary line reads, for example, "3 plates · Sliced for Bambu Lab P1S".

Which printer it was sliced for

Most sliced files name their printer. When one doesn't, the plate waits on Which printer was this sliced for? Pick the printer model and click Use this printer. Until a printer is picked, Choose printer in the plate's menu asks again.

The printer decides where the plate can print: the queue and Start print offer it to printers that can take a file sliced for that model.

A sliced 3MF that also holds its models

When a .gcode.3mf holds its models too, the project gets both:

the parts and plates, which you can edit, arrange and slice for other printers like any 3MF;
a print file for each plate it was sliced for, kept as it is.

SimplyPrint offers the setup the file was sliced for: "(file) was sliced for (setup). Use its setup?" Click Use its setup to add that printer, nozzle and settings as a setup, so the file's own print files count as that setup's.

You can then add setups for other printers. Those are sliced by SimplyPrint, while the original setup keeps the print files from your slicer.

See: Plates, printer setups and slicing in a project

Adding your own sliced file to a plate

Add > Your own sliced file… attaches a print file you sliced elsewhere to one of the project's plates, for example a hand-tuned slice for one printer, while SimplyPrint slices the other setups. It asks which plate when there are several, then which printer when the plate has several setups. A sliced file is for one printer, so the project needs a setup first: otherwise it says "Add a setup first. A sliced file is for one printer."

Changing a pre-sliced plate

A G-code-only plate can't be edited in SimplyPrint: there are no models to move or reslice. To change it, slice it again in your own slicer and upload the new version.

Printing pre-sliced plates

A pre-sliced plate's print file is ready straight away, so it can go into the print queue or start on a printer without slicing.

Projects

Files and printing

Updated on: 06/11/2026

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