Geometry Preparation

Table of Contents

1. Overview and Solution 2. Without Bench 3. Integrations 4. How Bench Solves This

Overview

Engineers spend valuable time (up to 30 hours per complex model) manually preparing CAD geometry for CFD analysis: deleting gaps or overlaps, simplifying edges or solving so. Every design change forces them to repeat the entire process.

Solution

Bench works like an engineer on your team, performing operations just like a human would, but significantly faster. Bench learns how to handle geometry preparation by applying the knowledge, processes, and logic your team chooses to share with it.

Engineers remain in control, reviewing Bench's work, approving actions, and providing context where needed. For geometry preparation, Bench handles the tedious cleanup work automatically, freeing your engineers to focus on analysis and design.

Bench works with your existing tools. No migrations needed. Seamless adoption.

Up to 80%

Time Saved

on manual geometry preparation tasks.

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Without Bench

Open the geometry

Open the geometry, isolate the region or parts that need simplification.

Manually delete or edit features

Suppress or delete features (fillets, chamfers, holes, tiny details). If the model is non‑parametric, manually patch geometry (fill holes, extrude over details, smooth surfaces).

Ensure all standards are applied

Assess against internal SOPs and preparation standards and ensure all are followed consistently across the geometry.

Export to CAE and mesh

Export the defeatured model and import into your CAE tool of choice, generate a mesh, and run initial checks or trial simulations.

Refine geometry based on simulation feedback

CAE engineer flags regions that don’t mesh or are overly complex; CAD engineer returns to the model, does further defeaturing, re‑exports, re‑imports, and re‑meshes - often looping several times.

Confirm simulation‑ready variant

Once the CAE team can mesh and run studies reliably, the defeatured model is accepted as the simulation‑ready variant.

This pain point shows up most commonly when engineers are preparing models for simulation and when they need to defeature scanned, non‑parametric models. In both cases, dense, over‑detailed geometries require hours of manual cleanup before CAE teams can reliably mesh and run studies.

How Bench Solves This

With Bench engineers can accelerate the process significantly. Bench automates geometry preparation through three key stages: understanding the part and it's context, planning a suitable workflow and executing the cleanup process within your existing CAD tool.

Understand

The user uploads the model and provides Bench with context through document uploads (e.g. SOPs) and visually indicates defeaturing requirements directly on the geometry (e.g. "remove everything inside this region" or "we don't care about fillets on this entire model").

This is a highly interactive, immersive, 3D-centred experience where you communicate with Bench as if it were a fellow engineer.

Bench detects missing context and asks clarifying questions to build a complete understanding of the task.

Plan

Bench takes all context and annotations into a unified prompt, generates an explainable workflow.

Engineers can inspect the workflow and edit it manually or through prompts (e.g. "keep this fillet", "also remove these holes").

Once the inspection is complete the engineer executes the workflow.

Execute

Bench runs the workflow in your CAD tool of choice, completing the geometry preparation in minutes. The output is a defeatured parametric model, in your CAD's native format.

Bench highlights the changes and provides full traceability of the changes that have been made, so the engineer can review the logic behind every modification.