Monthly Archives

November 2012

Linkage Program

Alternative Watt Linkage

I made this alternative to the traditional watt linkage for a beam engine. This changes the location of the pivot that controls the parallel motion. You can look at a few older posts to find the original design. Alternative Watt Linkage

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Linkage Program

Link Selection Change

I changed the Linkage program so that a click anywhere within a link will select it. This is in addition to the already existing code that would detect a click anywhere within about 8 pixels of the edge of a link. That selection distance was also increased for…

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Linkage Program

Linkage: High Quality Video and Other Improvements

Higher Quality Video Higher Quality Rendering The video creation feature now supports the standard quality and a higher quality setting. The standard quality is not very fast because of the time that is spent rendering the video frame. The higher quality rendering uses some anti-alias techniques to get…

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Linkage Program

Watt Linkage Geometry

The Watt parallel motion linkage is show on the internet numerous times. A simple “watt parallel motion” search for images yields enough results to make anyone happy. The interesting thing about these images is that they all look different. Well, there are a few variations that make me…

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Linkage Program

Linkage Runs on XP

I have had two people mention that they wanted the linkage program to run on Windows XP. One person had told me that it crashed and I then changed the install program to fail if the system is XP and not Vista or Windows 7. Well, I finally…

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Computers & Programming

Programming Projects

I have worked on various personal and professional computer programming projects over the years. This is a collection of some of those projects. Links are provided when more details are available. Dates are rough estimates for when the program was developed. Art projects can be found here. Show…

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Linkage Program

New Mechanism to Simulate

Modified Freemantle Linkage or Evans Linkage The linkage above cannot be simulated in the Linkage program (See Linkage 2.0). This appears to be a valid mechanism because there are three anchors all used to position link 1 (in dark blue). I am trying to decide how to handle…

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