3D CAD Clinic

Four modellers from the North Van NMRA group came by to enjoy a dry run of my clinic for the Railway Modellers’ Meet. It was a bit of an eye-opener! I had thought that I would offer the clinic in both OnShape and SketchUp, but fortunately, everyone chose OnShape; two hours is not enough time […]

Read More 3D CAD Clinic

Etching pattern begins

As I start work on the pattern for etching, there is good news and bad news. First the good news: it appears that OnShape have improved the compatibility with Inkscape, and so, now I can take flat patterns from OnShape and import them directly into Inkscape without traversing through QCadCam.  Someone is still resizing the […]

Read More Etching pattern begins

Accumate coupler boxes

Maybe they should be called “draft gear,” but they don’t look much like them, and they don’t behave much like them, and so, like “throwbars” they should get their own name. “Coupler box” is what I’ve always called them. I standardized on Accumate couplers for a couple of reasons: firstly because they are near-scale size, […]

Read More Accumate coupler boxes

Drawbar dreams

“I do all my best work in bed,” famously and salaciously declared Mae West.  And so it was, I awoke the other night with the solution to a problem I’d given up on long ago – the drawbar. Confusingly, the drawbar of a locomotive is not the thing that pulls the train; I think that’s […]

Read More Drawbar dreams

3D CAD saves the day

…or at least an hour anyway. As I was working my way through design of the running gear for 622, the reach rod for the reverser proved to be an interesting conundrum. According to the drawing from Baldwin, the lever for lifting the valve gear is supposed to be 21 inches long. This, along with […]

Read More 3D CAD saves the day