Lets mechanical engineers design parts in seconds instead of hours with AI-native CAD.
Using generative parametric modeling from natural language, multi-agent orchestration for parallel assembly design, and predictive manufacturability flagging.

Technology
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Mechanical Engineering
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YC W26

Last Updated:
March 19, 2026

Building a new mechanical engineering CAD platform from scratch with a custom parametric/B-Rep kernel and integrated AI chat interface. Creates parts in seconds that take 20+ minutes in SolidWorks. The custom kernel, built for modern CPUs and GPUs, eliminates the 4-hour assembly load times common with legacy CAD software running on 1980s-era kernels.
Product is downloadable for Mac and Windows. Demo videos show chat-driven part generation, instant assembly loading, and DWG/DXF compatibility. Founder has given talks at Berkeley AI Research (BAIR). Actively seeking hardware companies for rapid prototyping and feedback. A LinkedIn post mentions a new co-founder, suggesting team expansion.
Solo student founder (Lehigh University, graduating May 2026) now apparently joined by a co-founder. YC W26 signals imminent fundraising. SpaceX and Apple background suggests aerospace and consumer hardware as early verticals. No formal job postings yet but pace of development implies engineering hires coming.
<p>Natural-language chat-to-CAD model generation that converts engineer descriptions into fully parametric 3D parts in seconds.</p>
You describe the part you want in plain English and the AI builds the exact 3D model for you instantly.
Aurorin CAD's flagship ML use case is its LLM-powered chat-to-CAD agent. Engineers type or speak a natural-language description of a mechanical part—including dimensions, constraints, materials, and geometric relationships—and the system's fine-tuned large language model interprets the intent, maps it to parametric operations within the custom B-Rep kernel, and generates a fully editable 3D model in seconds. Unlike wrapper-based approaches that bolt AI onto legacy CAD APIs, Aurorin's kernel was designed from the ground up to accept AI-generated operation sequences natively, eliminating translation overhead and enabling real-time iterative refinement through follow-up conversation. The model understands engineering context (tolerances, manufacturing constraints, standard part libraries) and produces geometry that is not just visually correct but parametrically sound—meaning engineers can modify dimensions and features downstream without rebuilding. This collapses the traditional CAD workflow of sketch → extrude → constrain → iterate into a single conversational loop.
It's like having a master draftsman living inside your computer who draws exactly what you describe before you even finish your coffee.
<p>Multi-agent parallel design automation that orchestrates multiple AI agents to simultaneously generate, validate, and optimize components within a complex assembly.</p>
Multiple AI assistants work on different parts of your design at the same time, like a team of engineers who never miscommunicate.
Aurorin CAD supports multi-agent workflows where several AI agents operate in parallel on different components or sub-assemblies within a single design project. Each agent is responsible for generating or modifying a specific part while respecting shared constraints (mating surfaces, clearance envelopes, load paths, fastener patterns) managed by a central orchestration layer. This approach mirrors how engineering teams divide work on complex assemblies but eliminates the communication overhead and merge conflicts that plague traditional multi-engineer CAD workflows. The orchestration layer uses constraint propagation and conflict resolution algorithms informed by ML models trained on engineering assembly patterns to ensure that changes made by one agent (e.g., resizing a bracket) automatically trigger appropriate updates in dependent agents' work (e.g., adjusting bolt hole positions on an adjacent panel). This is made possible by the AI-native kernel architecture, which exposes a programmatic API that agents can call directly rather than simulating mouse clicks in a GUI.
It's like having a pit crew where every mechanic works on a different part of the car simultaneously and nobody bumps into each other.
<p>AI-powered instant geometry understanding and intelligent feature suggestion that analyzes imported or in-progress models to recommend next design steps, flag manufacturability issues, and auto-complete repetitive patterns.</p>
The software watches what you're designing and proactively suggests the next feature, warns you about manufacturing problems, and auto-completes repetitive patterns before you ask.
Aurorin CAD's kernel incorporates ML models that continuously analyze the evolving geometry of a part or assembly in real time to provide intelligent design assistance. As an engineer works—whether through chat or traditional UI—the system recognizes geometric patterns (hole arrays, fillet sequences, symmetry planes, standard fastener features) and offers to auto-complete them, dramatically reducing repetitive clicks. Simultaneously, a manufacturability analysis model evaluates the current geometry against learned constraints from manufacturing processes (CNC milling access angles, minimum wall thicknesses for casting, 3D printing overhang limits) and flags potential issues before the design is finalized. This predictive layer is trained on large datasets of engineering parts and manufacturing feedback loops, enabling it to understand not just what the geometry is but what it's for and how it will be made. The tight integration with the custom kernel means these suggestions appear in milliseconds rather than requiring a separate simulation step, keeping the engineer in flow.
It's like autocomplete for your text messages, except instead of finishing your sentences it finishes your engineering designs and tells you if they'll actually work in the real world.
Michael Baron combines hands-on SpaceX engineering (combustion simulation, guidance/navigation/control, flight software) with GPU systems programming from Apple. This dual background is directly relevant to building a CAD kernel optimized for both geometric computation and AI inference. Legacy vendors are constrained by 1980s-era kernels they cannot easily rebuild.