How it works
Real physics. No meshing. In your browser.
We rebuilt the stack from the geometry kernel to the solvers so the slow parts of CAD and simulation simply are not there. Here is what makes it different.
01 The kernel
Precise and organic, in one geometry.
LessCAD represents shapes as signed distance fields, a math description of solid volume, instead of a fragile web of surfaces and edges. That single choice is why you can dimension a part precisely and sculpt it organically on the same body, and why changing a parameter never leaves a hole to repair.
- Parametric and sculpted geometry share one kernel
- Continuous volumes, so no watertightness surprises
- A B-rep shadow exports clean STEP when you are ready to build
02 The method
We skipped the meshing pipeline.
Traditional FEA tessellates your part into a conforming mesh before it can solve, which is slow, brittle, and where most broken-simulation stories come from. We embed the part in a Cartesian background grid with the Finite Cell Method and go straight from geometry to a numerical system. No meshing step, nothing to hand-clean.
- No mesh generation, no repair, no remeshing on edits
- Boundary conditions imposed weakly on the immersed surface
- Refine by grid resolution, the same knob every FEA code has
03 The engine
Every solver runs on your GPU.
Stress, thermal, modal, and buckling all run entirely in WGSL on your graphics card, using matrix-free iterative solvers built for parallel hardware. Because the work happens on your machine rather than our servers, results come back in seconds and the physics is free and unlimited, bounded only by your GPU.
- Stress, thermal, modal and buckling, all in the browser
- Matrix-free GPU solvers with geometric-multigrid preconditioning
- A better GPU just means bigger models, faster
Fast is not hand-wavy
We publish the error, not just the claim.
Every solver is benchmarked against analytic and NAFEMS references, with the method and the numbers written down. Our modal solver passes the NAFEMS slender-cantilever case at 0.45% relative error.
See the validation →Make more. Click less.
Free forever to model and simulate. Nothing to install.