Category
Someone asked me to add this to the program itself, and I’ll do that sometime. For now, here’s a playlist of Linkage tutorial on YouTube that I created: https://www.youtube.com/playlist?list=PLGxa5y5etMwAY238yKu1orXTnzD9h5nL_ There are two or three simple tutorials that someone else made. You can find them doing a search. Since…
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…
Continue readingThe startup problem is caused by a change in the Windows operating system and is affecting a bunch of software. There was already some slow code in a Microsoft library that handles scaling of images in the tool bar and this new Windows bug makes it much much…
Continue readingSomething in the recent versions is causing the startup process to be very slow. It could be that the toolbar icon resizing done by some Microsoft code is just way slow for my 4K display. but it could be something else too. I’m trying to figure it out…
Continue reading