Cad Standards

Overview

At Edelweis, we treat CAD data as the definitive Single Source of Truth (SSoT). Our modeling standards are engineered to ensure that every file is not only visually accurate but also structurally intelligent, computationally efficient, and manufacturing-ready.

A high-quality assembly is one that can withstand global design changes without breaking—a concept we define as Model Resilience.

The Edelweis Modeling Philosophy

We reject "bottom-up" modeling for complex systems. Instead, we utilize a rigorous Top-Down Design (TDD) methodology. This approach ensures that the design intent is controlled from a central master framework, allowing for synchronized updates across thousands of interdependent parts.

Core Objectives

Interoperability

Ensuring files open and perform seamlessly across different PLM environments.

Scalability

Structuring assemblies to grow from 10 to 10,000+ parts without performance lag.

Auditability

Every feature and constraint must be logical and traceable for engineering audits.

Downstream Readiness

Preparing models for immediate transition into FEA/CFD solvers and CAM toolpaths.

Universal Directives

Every CAD asset produced by Edelweis must adhere to these four fundamental directives:

1

Fully Defined Geometry
No sketch or feature is left under-defined. Every entity must be locked by parametric dimensions or geometric relations to prevent accidental "drift" during multi-user collaboration.
2

Intentional Feature History
We build models following the logic of the manufacturing process (e.g., base extrusion → machining → finishing). This makes the "Feature Tree" intuitive for any engineer to modify.
3

Minimalist Mating Logic
We avoid "Mate Chaos." We utilize Coordinate System Mating and Skeleton Sketches to reduce the computational overhead, ensuring files remain "light" even in complex configurations.
4

Metadata Integrity
A part is more than its shape. Every file carries embedded metadata including material specifications, vendor part numbers, and precise center of mass (CoM) data.

Standard Software Stack

While we are tool-agnostic in principle, our primary standard is built upon the Dassault Systèmes SolidWorks Premium environment. We maintain strict compliance with:

PDM (Product Data Management)

For workflow state-flow and versioning control.

MBD (Model-Based Definition)

For embedding GD&T directly into the 3D space.

This section is divided into specific protocols to help your team align with our output:

Template Architecture

Understanding our Part and Assembly DNA.

Layering & Coloring

The visual language of our technical models.

Naming Conventions

Our logic for Part Numbering and Hierarchy.

Master Modeling

How we control complex surfaces from a single skeleton.

Technical Note

All Edelweis CAD outputs are verified using our internal Model Quality Check (MQC) script before handover, ensuring zero dangling relations and 100% feature tree health.