How to Split Models in Simplify3D: Fast-Track Guide to Efficiently Split Models

Splitting models in Simplify3D is an essential process for 3D printing enthusiasts and professionals who need to manage complex parts, prepare multi-component prints, or fit large objects onto a smaller build plate. The Split Model feature allows users to divide a single 3D object into separate components, making it easier to manipulate, print, and optimize each part individually. Here’s a step-by-step guide to splitting models in Simplify3D:

1. Import Your Model: Begin by launching Simplify3D and importing your desired STL or OBJ file. Use the ‘Import’ button or drag and drop the file onto the build area.
2. Select Your Model: Click to highlight the model you wish to split. Right-click to open the context menu and select the ‘Separate Connected Surfaces’ option if your model consists of multiple joined meshes.
3. Split Using Mesh Tools: For a model that’s a single solid object, use external modeling software like Meshmixer or Blender to pre-split your part, then re-import to Simplify3D. Simplify3D itself does not have direct mesh-cutting tools but excels at separating multi-part models.
4. Adjust and Arrange Parts: After separating, each component will appear as a discrete object in the workspace. You can move, rotate, scale, or duplicate any segment as required and arrange them optimally for printing.
5. Create Separate Processes: If you need different print settings for each component, add unique print processes in the ‘Processes’ panel and assign them to specific parts. This enables customization such as varying infill or layer heights for each segment.
6. Export Individually: Each split model can be prepared and exported separately, allowing you to print only the part you want or batch-print the entire set.

As a designer, I always encourage thinking about the final assembly and the limitations of your build volume when splitting models. Segmenting your designs efficiently can open creative opportunities and solve practical printing challenges—much like how space planning impacts furniture layout. Tools specializing in room and furniture arrangement such as a room planner, offer a parallel in digital design, allowing each element to find its optimal place. Using these techniques, you ensure your 3D prints are both manageable and beautifully composed.

Tips 1:

For highly detailed or large models, consider the location and orientation of splits to minimize supports and post-processing—just as you’d plan the flow of a multi-use space in an interior design project.

FAQ

Q: Can I split a solid model directly in Simplify3D?

A: No, Simplify3D can only separate joined meshes but cannot cut or split a single mesh; for that, use external tools like Blender or Meshmixer.

Q: What file formats does Simplify3D support for split models?

A: Simplify3D primarily supports STL, OBJ, and 3MF files for import and export.

Q: What’s ‘Separate Connected Surfaces’ in Simplify3D?

A: This feature splits multi-object models into individual components so each can be edited, moved, or printed separately.

Q: How do I assign different print settings for each split model component?

A: Create separate processes in the ‘Processes’ panel and assign each process its respective model part.

Q: Will splitting a model affect its print quality?

A: Splitting allows for optimized print settings and arrangements, potentially improving print quality if done thoughtfully.