Monthly Archives

January 2018

Linkage Program

Fixed That Nagging Delete/Fasten Bug

I 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…

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Linkage Program

Another Simulator Bug!

The 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…

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Computers & Programming

Software Code Redundancy

I’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…

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Linkage Program

Archimedes Trammel

It’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…

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Linkage Program

Linkage Update 3.7.5

A 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…

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Linkage Program

Linkage 3.7.4

I 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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