Simulation-driven design.
Custom insoles with a printable lattice
The «Custom insole» template takes you from a foot size to an insole with a lattice inside, ready to print. Add a pressure map or a foot scan if you have one; everything is processed in your browser.
Open IMPLICIT Free, in the browser. No installation, no account to start.

Five steps
- Foot: size (EU, US men, US women or the foot length), width (narrow, normal, wide or custom), left or right, and the shape: heel and forefoot thickness, heel cup depth, arch support height and toe spring.
- Data, optional: a pressure map as a CSV file, and a 3D scan of the foot (PLY, OBJ or STL).
- Feel: soft, medium or firm, the process (FDM in TPU, SLS in TPU, MJF in TPA) and open or closed sides.
- Review: quality and a preview, then generate.
- Generate and export: download the STL, save the project, or continue in the editor.
Pressure maps and scans
A pressure map from a platform or an in-shoe system is fitted heel to toe on the outline, mirrored if it is the other foot, and used as a field: firmer, or softer, where the pressure is high. A foot scan is aligned under the insole and the top surface follows the sole of the foot. The data is never uploaded.
Without data, the lattice is made denser under the medial arch.
What it is, and what it is not
The outline is built from published foot proportions, not from a particular shoe last. The lattice is a gyroid whose cell and wall set the feel: 12, 10 or 8 mm cells for soft, medium and firm. IMPLICIT does not estimate print time: your slicer does.
It is a design tool, not a medical device: for a clinical need, work with a podiatrist or an orthotist. You can go through the template and generate on any plan; downloading the insole is Pro, or free with Education.
Frequently asked questions
Which pressure map formats work?
A CSV matrix of readings from a pressure platform or an insole system, with commas, semicolons, tabs or spaces. The app detects the separator and the foot.
Can I use a phone scan of my foot?
Yes, if you can export it as PLY, OBJ or STL. If its length differs from the size you chose, the app offers to use the scan’s length.
Which material should I print it in?
The presets are TPU on FDM and SLS, and TPA on MJF. Open sides let the powder out in SLS and MJF.
Can I adjust the design further?
Yes. «Open in the editor» keeps the insole and gives you every lattice, grading and emboss tool.
Open IMPLICIT Free, in the browser. No installation, no account to start.
What you can do with IMPLICIT
- Lattice generatorGyroid and other TPMS, beam cells, Voronoi and spinodal.
- Topology optimisationThe stiffest layout for the material you allow.
- FEA for 3D printingStress, displacement and safety factor in the browser.
- Graded latticesWall or cell size by stress, heat, image or pressure.
- Embossing and texturesText, logos and patterns, raised or engraved.
- EducationEvery Pro feature, free, for learning and research.