Developer Alpha

Your AI copilot
inside SolidWorks

Caddie lives in your SolidWorks taskpane. It reads your model in real time, answers with context, and keeps itself updated automatically.

⇓  Download Free See It In Action

Free  ·  v0.1 Alpha  ·  SolidWorks 2022+

SOLIDWORKS 2024 — Bracket.SLDPRT
Bracket.SLDPRT  ·  14 features
Caddie Ask Caddie ready
Bracket.SLDPRT  ·  14 features
YOU
Why is my loft failing?
CADDIE
The guide curve in Loft1 isn't piercing both profiles — that's what's causing the failure.

Fix: Edit Sketch4 → select the guide curve endpoint → Add Relation → Pierce.
YOU
How do I add a fillet to the sharp edge?
Bracket.SLDPRT
Ask about your model…
Use Cases

See Caddie in action.

Real scenarios SolidWorks engineers face every day.

🔧
Debugging

Stop searching forums.

Your sketch shows dangling relations after renaming a reference plane. Instead of searching StackOverflow for an hour, ask Caddie — it sees your feature tree and tells you exactly which relation to delete and what to replace it with.

My sketch has a dangling relation after I renamed Top Plane
In Boss-Extrude1 sketch, the coincident relation on line 3 references the old plane name. Right-click it → Delete Relation → re-add Coincident to Top Plane.
🎓
Certification

Study with your model open.

Working toward CSWP certification? Caddie walks you through practice exercises step by step, referencing your actual model. Ask it to explain why a feature was built a certain way and get exam-level answers.

Walk me through this lofted feature for my CSWP prep
Your Loft1 uses 3 profiles and 1 guide curve — a common CSWP question type. The key constraint examiners test: guide curves must pierce all profiles, not just intersect.
🔍
Model Review

Catch issues before your supervisor does.

One click runs a full model review — rebuild errors, naming conventions, dangling references, and design intent issues — all prioritized by severity so you know what to fix first.

Review my model for issues before I send it to the team
3 issues found:
🔴 Sketch3 has external ref to deleted edge
🟡 5 features use default names (Extrude1…)
🟢 Configuration naming looks good
Why Caddie

Designed for how engineers actually work.

Three principles that most AI tools miss entirely.

📊
Context-Aware AI

Before answering, Caddie reads your feature tree, active configuration, selection state, rebuild errors, and takes a live viewport screenshot. Every answer references your actual model — not a textbook example.

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Always Up to Date

Caddie notifies you inside SolidWorks when a new version is ready. One download, ten seconds to apply — no re-registration needed. You never need to check a website.

🔒
Private by Default

All conversation history, notes, and preferences are stored in SQLite on your PC. No account needed, no telemetry, no analytics — confidential designs stay confidential.

💬
Smart Chat

Ask anything about your model. Caddie answers with specific references to your feature names, sketches, and mates.

🎓
CSWP → CSWE Training

Structured exercises and step-by-step guidance aligned with Dassault's certification syllabi.

🖼
Teach Me From Image

Drop a screenshot of any model and Caddie generates a complete SolidWorks build plan.

🧠
Persistent Memory

Caddie remembers your modeling style and project notes — all stored locally on your machine.

How It Works

Up and running in under 5 minutes.

Caddie runs entirely inside SolidWorks as a native taskpane add-in. No browser, no copy-paste, no context switching.

1

Install the add-in

Extract the zip, right-click install.bat → Run as Administrator, enable Caddie under Tools → Add-Ins. No account needed.

2

Open your model

Open any part, assembly, or drawing. Caddie automatically captures your feature tree, configuration, and a viewport screenshot.

3

Ask anything

Type your question. Caddie responds with specific advice referencing your actual feature names, sketches, and mates.

Alpha Feedback

What engineers are saying.

"Caddie saved me 45 minutes on a loft failure I'd been fighting all morning. It saw exactly which sketch had the broken guide curve."
MR
Marco R.
Mechanical Engineer · 8 yrs SW
"I'm studying for my CSWP and having an AI that can actually see my model is a completely different experience. It's like having a senior engineer on call."
ST
Sarah T.
Design Engineer · CSWP candidate
"The model review caught a dangling reference I'd missed for two days. One click, instant answer, zero digging through the feature tree manually."
JK
James K.
Product Designer · Manufacturing
Resources

Everything you need to get started.

🚀
Quick Start Guide

Install Caddie, enable the add-in, and have your first conversation in under 5 minutes.

Read guide →
⚙️
How Caddie Works

Understand how Caddie captures context, routes requests, and keeps your data private.

Learn more →
🗺
Roadmap

See what's shipping now, what's next, and where Caddie is headed in future milestones.

View roadmap →
🔒
Privacy & Data

Everything stored locally. No telemetry. No account. Your CAD data never leaves your machine.

Read policy →
Roadmap

What's shipping and what's next.

Done

M1 — Core: Add-in + Fast Context + Chat

Add-in loads, taskpane UI, fast context snapshot (doc + features + screenshot), AI chat with streaming.

Next

M2 — Deep Context + Selection Awareness

Deep snapshot with mass properties, mates analysis, sketch validation, cancellable progress UI.

Soon

M3 — Structured AI Responses + Model Plans

Plan → Why → Check → Alternatives response format. Review tab powered by AI analysis.

Soon

M4 — Full Memory System

Per-project notes, preference learning, session summarization, searchable history.

Planned

M5 — Teach Me + Image Pipeline

Image-based build plan generator, CSWP exercise grading, CSWE certification track.

Planned

M6 — Commercial Polish + Installer

Packaged installer, licensing system, optional cloud sync (opt-in), multi-provider AI.

Privacy First

Your CAD data stays on your machine.

Caddie is built for engineers who work on confidential designs. We take data security seriously by default.

💾
Local Storage

All history, notes, and preferences are stored in SQLite on your PC. Nothing leaves without your permission.

🔑
No Account Needed

Caddie includes its own AI access during alpha. No OpenAI account or API key required — just install and go.

📵
No Telemetry

Zero usage tracking by default. No analytics, no crash reporting unless you explicitly opt in.

🏠
Opt-in Cloud

Cloud sync for history (coming in M6) is always explicit opt-in, never automatic.

Caddie
Developer Alpha · v0.1

Download Caddie

Ready to run inside SolidWorks 2022+. Extract the zip, run the installer, and you're chatting with your models in under 5 minutes.

⇓  Download CaddieAlpha.zip

Windows 10 / 11  ·  64-bit  ·  SolidWorks 2022+  ·  Free during alpha

1
Extract the zip to a permanent folder — e.g. C:\Caddie\ Don't leave it in Downloads — the DLL path must stay fixed.
2
Right-click install.bat → Run as Administrator Click Yes on the UAC prompt. You'll see "SUCCESS: Caddie registered."
3
In SolidWorks: Tools → Add-Ins → Caddie → check Active & Start Up → OK The "Ask Caddie" panel appears on the right. Open any model and start chatting.
Full install guide →