Monthly Archives
I recently made a tutorial for using gears and chains in the Linkage software. Here’s the video, which can also be found on YouTube:
Continue readingI think I finally found a bug in the Linkage software that has been, well, bugging me, for months or even years. When deleting a link that has multiple fastened elements, sometimes the Linkage program would crash. The bug only happened intermittently because the order of links and…
Continue readingThe Linkage simulator works great when there are a lot of links that all chain together into some interesting complex movement. But one place I didn’t do much work on is related to links that just sort of hang on and move with others. Look at the picture…
Continue readingI’m currently adding features to an existing Android app. It is written in Java, a language that I can write in but not at all as competently as C++. The programmer is very skilled in many areas but I think that he lacks a little discipline in removing…
Continue readingIt’s really just a trammel thing that somehow got named after Archimedes. At least that’s one story I read. Archimedes Trammel in Action I had to add grid and element snapping for sliding connectors in the latest (not yet available) Linkage program. That was a tough feature to…
Continue readingThe MFC tooltip handling code has a bug. You can set the width of a tooltip but there is a hard-coded max width for the description text. It’s set to 200 pixels and a little trickery is needed to fix it. The trick is to add code to…
Continue readingA new update is available. There are a few changes, improvements, and fixes: Change to export motion path using the mechanism units (inches, mm). Experimental simulation cycle feature that runs half an actuator cycle or a full rotational cycle. This is still an experiment and has flaws. Fix…
Continue readingI just updated the Linkage page with Linkage 3.7.4. This version has a fix for a gear fastening bug that was in the last two versions. It also has three new samples generously donated by Andrew Hall; they are Stirling engine mechanisms. I’ll update the samples web page…
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