Innovative Design
Custom mechanical parts, brackets, fixtures, and mechanisms — modeled in CAD and refined for real-world manufacturing.
Where engineering meets intelligence.
Solving real problems for small manufacturers and homeowners — from custom mechanical design and prototyping to automating the equipment and processes you rely on every day.
Services
What I build
From a single custom bracket to the workflow that quotes it automatically.
Manufacturing Solutions
3D-printed or CNC prototypes coordinated so you get a physical part in hand, and mechanism design for equipment that needs to run more reliably.
AI Integration
Simple AI-powered tools built on the Claude and ChatGPT APIs — auto-generated quotes and inquiry routing that take busywork off your plate.
Business Automation
PLC ladder logic, motor and sensor integration, and workflow automations on Zapier, Make and n8n that remove manual busywork.
Featured project
Automatic Mower Access Door
An automated access door that lets a robotic mower pass unattended between the front and back yard — opening on its own as the mower approaches, then closing behind it.
Status — active project
See the full project →- Problem
- A robotic mower needed to pass unattended between front and back yard through a fixed gap.
- Solution
- An automated access door that senses the mower approaching and opens on its own, then closes again once it's through — no manual gates or remotes needed.
- Outcome
- Design in progress — dimensions confirmed on-site, gear/motor sizing computed, printed-part CAD underway.
How a project runs
Process
- STEP 01
Scope call
A free 15-minute call to hear the actual problem — no obligation, no pitch deck.
- STEP 02
Concept & quote
A concept sketch or CAD model within days, with a fixed-fee or hourly quote before any commitment.
- STEP 03
Design & build
Full CAD, DFM review, and — if needed — a coordinated 3D-printed or CNC prototype.
- STEP 04
Delivery
Documented files you fully own, plus an honest read on where automation could save you time next.
Start a project
Response within one business day.
If it's not a fit, you'll hear that too.
- Emaildavid.pettingill@mechanexus.com
- Phone720-995-8568
- LocationCastle Rock, CO
Good first questions to send
- What's the part or process, in plain terms?
- Do you need a concept only, or a physical prototype in hand?
- Roughly what's it costing you today — time, scrap, downtime?
- Any deadline this needs to hit?