Welcome

About my Website

Hello, and welcome to my personal website. I’m a retired civil engineer based in Ontario, Canada with hobby interests in 3D computer-aided design (CAD modeling), woodworking, and 3D printing. I also enjoy cycling, skiing, kayaking, and hiking (the photo above was taken on the Mont Blanc hiking trail near Chamonix, France).

I created this site to display some of my CAD renders and simple build projects. I hope they are of interest to you or inspire ideas for your own projects.

CAD Modeling

During my career, I used 2D CAD occasionally for engineering and design work, but I wanted to continue using it for personal projects after retirement. Since AutoCAD was far too expensive for my needs, I chose TurboCAD Deluxe instead. The software’s capabilities have impressed me, especially given its very reasonable cost. I began by creating simple 2D drawings for woodworking projects and soon started exploring TurboCAD’s 3D modeling features.

As a kid in the late ’60s and early ’70s, I was fascinated by model railroading and Meccano. I realized that building virtual Meccano models would be a great way to learn and practice 3D CAD modeling. So, I decided to create a CAD library of the roughly 300 Meccano parts from that era and began computer modeling some of the complex designs I could only dream about as a child.

Timothy Edwards’ Meccano website offers an extensive archive of original parts drawings and model instruction manuals. The New Zealand Meccano site provides detailed information about the parts and their history. Both have become invaluable references for my CAD work.

I’m still amazed by the mechanical ingenuity of these models—the motors, gears, sprockets, chains, pulleys, and belts—all working together in designs that often use thousands of parts. CAD lets me build with an endless supply of parts and saves me from the heartbreak of dismantling one model just to build another. Still, I sometimes wish I could hold these models in my hands and see them in operation.

I also enjoy creating near-photorealistic renders of my models and superimposing them onto photographic backgrounds to make them look life-size and integrated into the original photo. To achieve this, I use fSpy, an open-source camera-matching tool, along with a C# program I wrote, to synchronize TurboCAD’s camera position and perspective with the photograph.

With TurboCAD’s LightWorks render engine, I can fine-tune the materials, luminance, and environment settings to generate realistic reflections, shadows, and lighting that blend naturally with the background scene. I then use GIMP, an open-source image editor, to add details like steam and smoke—effects that are difficult to create directly in TurboCAD.

You can see examples of these renders in the CAD Models section. Each image was exported as a high-resolution JPEG at 300 ppi.

Woodworking

My woodworking projects focus on function over aesthetics. I usually build only when a specific need comes up. My basement workshop is simple—a DeWalt jobsite table saw, a Ryobi drill press, and a handful of basic hand tools. I’m not equipped for fine woodworking or precision builds but I enjoy the challenge of solving problems, designing practical and affordable solutions, and figuring out how to construct them with the tools I have.

You can find photos and drawings of these projects in the Woodworking section.

3D Printing

I only recently ventured into the fascinating world of 3D printing and I’m still very much in the early stages. I picked up a Creality Ender-3 V3 SE when it went on sale and I’ve been pleasantly surprised by the print quality for an entry-level machine. After trying out a few different slicer programs, I settled on PrusaSlicer, mostly because I like its clean, intuitive interface.

Before printing anything, I read through many websites and forums to find the optimum printer and slicer settings for different filaments like PLA, PETG, and TPU. The research definitely paid off; I haven’t had any failed prints so far (though I haven’t tried printing with TPU yet).

My main use for the printer will be to make my own replacement parts for broken or missing plastic items—especially ones that are obsolete or overpriced. With a digital caliper, I can measure and recreate a part as a CAD model, export it as an STL file, run it through the slicer, and just a few hours later hold the finished piece in my hand. The printer is also great for creating custom parts with unique designs or specific purposes.

You can see one of these projects in the 3D Printing section.

Thanks for visiting and I hope you see something interesting or useful.

Colin Edgar

Last updated: February 11, 2026

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