👋 I'm new to Contra and I did my first post without realizing I hadn't even introduced myself!

Hey I'm Katya, I'm an AI Systems Architect, marketer and yoga teacher.

I build AI systems that bring in business and handle the work behind it. A voice agent that calls new leads back within seconds and books the appointment. A pipeline that traced 16,900+ leads to the ads that brought them. Listing videos made from the photos a real estate agent already has.

The marketing side came first. I built the multi-channel campaign for Jay Shetty's launch (22 million followers). After that I discovered the tech world and when AI came along, I realized I'm a builder at heart and never looked back! Building is so much fun 🤍

Here's what I've shared:

My first post: on building a fully AI-made YouTube video, end to end, because I'm camera shy 🙈 https://contra.com/community/MP9mFRuT-im-building-my-first-fully-ai-made

Last thing, if you're building with AI video or automation, I'd like to see what you're working on And if you're hiring: I may be new to Contra but definitely not new to this work. Reach out for AI agent builds, apps, websites or anything in between.

P.s The video below is my AI avatar. My profile video is the real me :)

Nice Portrait....Has everything from a great pose, great composition and lighting and perfect environment setting.

An interlocking gear-train workbench with true ratios and brass-blueprint charm.

I built this project to test An interlocking gear-train workbench with true ratios and brass-blueprint charm. The core engineering challenge was sustaining uncompromised 60 FPS rendering using Canvas2D while handling continuous user interaction without framework overhead.

WHAT I WAS TESTING: I focused on two core engineering benchmarks:

Real-time gear mesh torque transfer and escapement tick mechanics

Interactive placement of interlocking brass gears with variable ratios

THE TECHNICAL SIDE: Implements true involute tooth profiles computed via parametric equations. Rotational speeds are propagated through an adjacency graph of connected gear nodes. Everything executes in the browser using Canvas2D, Mechanical Gear Physics, Involute Gear Tooth Profiles. No third-party frameworks, no heavy runtime bundles, and zero external tracking.

WHAT I LEARNED: Floating-point precision drift caused gear teeth to gradually overlap after several minutes. Clamping phase angles to gear pitch intervals solved the drift. Finding the sweet spot between mathematical precision and frame budget took careful profiling, but the result runs at a steady 60 FPS even on modest hardware.

TRY IT YOURSELF: The live build is deployed on Netlify. Open it in your browser, test the controls, and observe the render response times.

If you are building high-performance 3D, physics, or creative web systems and want to collaborate, reach out here on Contra.

Built by Samin Sami | Developer & 3D Experimentation

Steampunk vibe👍