Software centre Material Divider

Licensed multi-material STL tool

Separate the detail.
Keep the shape.

Material Divider converts microscopic recessed surfaces in an STL into locked, watertight material inlays while preserving the original exterior geometry.

  • Windowsx64
  • InstalledWindows setup
  • Licence1 active device per copy
  • CurrentVersion 0.1.0
Material Divider
ABC
0.60 mm inlay

The exterior stays true.

One aligned model.
Multiple printable materials.

Why material depth matters

Surface colour is not only a surface problem.

These two layers come from a real sliced print. They show how the material underneath a visible detail can matter just as much as the final top layer.

Slicer preview of layer 3 showing orange infill continuing beneath small dark surface-detail regionsLayer 3
The body material still dominates.

Orange infill occupies almost the entire layer while the dark details are only beginning to appear. If a pale surface is printed above insufficiently deep colour separation, the darker or stronger colour below can remain optically visible.

Slicer preview of layer 4 showing long dark detail paths surrounded by orange infillLayer 4
The detail has become a deeper volume.

The dark paths now extend through the layer, but they remain tightly surrounded by orange toolpaths. With thin features, translucent light filaments, or too few covering layers, this can produce shadowing, muddy edges, and apparent colour bleed.

What Material Divider changes

The inlay becomes its own watertight material volume.

Material Divider does not merely paint the final surface. For the depth you choose, it completely separates each selected colour from the main body and creates aligned, locked parts. The body material therefore cannot continue underneath that inlay footprint within those layers, helping prevent lower colours and infill from showing through lighter surface details.

  • Choose enough inlay layers for the opacity of your filament.
  • Keep each colour as a distinct slicer material assignment.
  • Preserve the original exterior while separating the volumes beneath it.
Read the complete guide to colour bleed and inlay depth →

A real, repeatable demonstration

Use our model. Check our result.

This original CC0 demo plaque contains eight 0.012 mm recessed regions. Material Divider finds those regions, groups them into three colours, and builds a verified four-part assembly. Download both files and inspect the result in your own slicer.

8 detected details3 material colours4 watertight partsExact volume match
01

Start with the neutral STL

No product geometry and no hidden setup. The plaque was created solely for this public demonstration.

Download demo STL →
Material Divider showing eight demo regions assigned to Ocean Blue, Sunset Orange and Signal Mint
02

Generate the locked parts

The application confirms an exact partition, four watertight parts, and a preserved exterior before export.

Download expected 3MF →
Material Divider showing the generated four-part demo assembly and exact partition verification

Demo plaque geometry is released under CC0 1.0, so you may download, print, modify, and share it without attribution.

What it handles

From microscopic recess to slicer-ready assembly.

01

Finds microscopic recesses

Detects shallow surface bands that are easy to miss in ordinary mesh tools, including the supplied model’s 0.009–0.012 mm design levels.

02

Builds locked inlays

Converts selected regions into material groups with a chosen depth, creating aligned parts that remain mechanically located.

03

Selects exactly what matters

Separate only a microscopic indentation or fill its complete enclosed area. Use marquee selection to assign many regions together and Alt-select to return them to unassigned.

04

Draws new material artwork

Add lines with round or square ends, rectangles, ellipses, triangles, stars, and editable text directly on the chosen design face.

05

Checks the result

Confirms generated volumes and watertight geometry before export so obvious mesh failures are caught before slicing.

06

Exports for the slicer

Creates an assembled 3MF for your favourite 3D printer slicer, with an aligned-STL ZIP available as a fallback workflow.

How to use it

Choose a face. Group the detail. Export.

01

Open the model

Open or drop an STL, choose Design face, then select the broad bed-facing surface that contains the recessed artwork.

02

Select or draw the materials

Choose indentation-only or enclosed-area separation, assign individual or marquee-selected regions, or draw new shapes and text directly on the design face.

03

Generate and export

Choose an inlay depth, generate the locked parts, review the volume and watertight checks, then export the assembled 3MF.

STL importDesign-face selectionRecess-band detectionIndentation or enclosed-area fillMarquee selectionShape and text drawingMultiple material groupsWatertight checksAssembled 3MF export

Good to know

Designed for a clean handoff to your favourite 3D printer slicer.

Which export should I use?

Use the assembled 3MF in your favourite 3D printer slicer. It keeps the generated child parts together so you can assign a filament to each one.

What is the aligned-STL ZIP for?

It is a fallback. Import all of its STLs together as one object with multiple parts, and do not auto-arrange the individual files.

How deep should an inlay be?

The right value depends on your layer height. For example, 0.60 mm is three layers at a 0.20 mm layer height.

Does it change the outside of my model?

The tool is designed to preserve the original exterior geometry while converting the recessed design regions into separate locked parts.

Is the Windows installer code-signed?

Yes. The installer is digitally signed and timestamped by IT IT IT LTD. Windows SmartScreen reputation can still take time to build for a new release, but you can inspect the file’s Digital Signatures tab before running it.

Can I activate a PC that is not connected to the internet?

Yes. Material Divider can create an offline request code. Enter that code in our activation portal from any connected device, then import the signed response into the offline PC. Offline activations are renewable annually.

Are updates included?

Yes. Your purchase includes software updates for this product. Material Divider checks periodically, or you can use Check for Updates at any time.

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Latest signed installer

Material Divider for Windows

Install the signed Windows x64 application, activate one PC per purchased copy, and receive future product updates. Your model processing stays on your PC, and offline activation is supported.

Material Divider 0.1.0 · Windows x64Signed Windows installer · approximately 100 MB
Add to basket · £1

SHA-256: 805ADAB9D84DCCFCC6ADE0C8F320A6AD6EB1DA0F0C01D0446011880845646E3A
Need help? enquires@ititit.co.uk