Articles on: Cloud Slicer

A model imports incorrectly or has missing parts

A model imports incorrectly or has missing parts

If a model looks wrong after import, the file may contain geometry or project data the Cloud Slicer cannot read exactly. This guide explains what to try.


Try a simple model format

If a project file imports incorrectly, export the model as a simpler format and import that version.


Good options are:


  • STL for simple geometry
  • OBJ for geometry exported from some modeling tools
  • STEP or STP for CAD files
  • 3MF when you need richer model data, but can check the import carefully


Check whether the file is already sliced

G-code files are already sliced. When they are opened through a supported preview flow, they open as previewable output, not editable models.


Some 3MF files also contain G-code. If SimplyPrint detects G-code inside the 3MF, it may open the file as sliced output instead of importing it as editable model geometry.


If a 3MF project imports differently

3MF files can contain model geometry, object placement, multiple plates, paint data, modifiers, extruder assignments, and slicer settings.


The Cloud Slicer can import some 3MF project data when it can read the file, but 3MF import is best effort. Different slicers store project data differently.


If the result is wrong:


  1. Open the file in the slicer that created it.
  2. Check whether the model looks correct there.
  3. Export a fresh 3MF or STL.
  4. Import the new file into SimplyPrint.
  5. Re-check placement, plates, modifiers, painted regions, and filament assignments.


If parts are missing

Missing parts usually means the model was exported as multiple components, volumes, or separate objects and not all of them imported as expected.


Try:


  • Exporting each part as a separate STL
  • Re-exporting the project from the original slicer
  • Combining the parts in the original design program before export
  • Importing the original file into the desktop slicer first, then exporting a simpler file


If the model is extremely small

If the imported model is very small, it may have been exported in inches instead of millimeters.


The Cloud Slicer can detect very small imported models and ask whether to convert from inches to millimeters. If you skipped that prompt, remove the model and import it again, or scale it manually.


If STEP or STP import fails

STEP and STP files are converted before they appear in the slicer.


If the conversion fails or the result looks wrong, export the model as STL or 3MF from your CAD program and import that version instead.


When to use the original slicer

If the file depends on exact 3MF project settings, modifiers, painted regions, or plate setup, use the slicer that created the project.


After slicing there, upload the generated G-code to SimplyPrint or send it through a supported integration.



Updated on: 26/05/2026

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