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Making a fixture to cut dovetail slots – Making the do-nothing machine manually

The Do-nothing machine base with hand cut slots.

I have read many many places that you can cut dovetail slots in a board by hand. They say use a saw to cut the outer edges and then use a chisel to remove the material in the center. That all sounds good, except I was

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Why I built the Crane Boom Hinge the way I did.

The Plan for the Crane Butt.

Last night’s post, Popsicle Crane Update 3 was almost completely about construction of the crane boom hinge end (the “butt” end – a real term used by the crane industry.) I realized on the way to work today I did not talk about why I did what I

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Analysis of the movement of the Do-Nothing Machine

The circumference of an ellipse with a 8″ minor axis and 12″ major axis

This weekend I completed the program to produce data about the do-nothing machine and analyzed the data using a graphing program called Veusz. I answered some of my questions about the motion as well as I found a surprise. There

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The centroid (center) of a beam.

Several posts ago I talked about finding the center of mass of an object. That procedure when applied to a flat surface (a plane) is used to locate the point called the centroid. The the plane is a flat plate made completely from a uniform material, the centroid is where a pin could be

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Popsicle Crane Update

Cutting a Popsicle Stick

 

Details, details details. Details seem to be everything, but sometimes you don’t even know the details you need to know. Since constructing the popsicle test tower I have learned a lot. Unfortunately, there is not yet a lot to show because I am working slow and methodically to do

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The Popsicle Crane boom – Test 1.

Picture 1: All of the loads acting on the boom.

Over this long 3 day weekend I finally got the initial test tower completed and did some testing. In many ways it was my testing that failed and not the tower. There is a story often told in math class about the frog dying

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Top Dead Center and Singularity

TDCHeader

The Pedal 30 degs off T.D.C.

There is a mathematics term thrown around a lot by the “free energy” people and after the last post about the do-nothing machine, this is probably the best time to deal with it. The term is singularity or as used by them “the singularity point”. According to Wikipedia

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Revisiting the Do-Nothing Machine one more time – The most critical part.

The Working Painted Do-Nothing

During the final final fit of the Do-Nothing Machine I ran into a few more problems. Like always, I eventually worked through the problems and also like always I learned something.

To “honor” the political season getting kicked off this week I decided to paint the Do-Nothing Red White and

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Crane Boom Analysis Part 2.

Picture 1: All of the loads acting on the boom.

This is a continuation of the last post and our attempt to understand the forces acting on a crane boom. The summary of where we left it was:

All of the forces along the boom will compress the boom. The boom weight and the

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A gross analysis of the forces on a crane boom

Picture 1. The top of a crane boom from some government archive pictures.

It is time for the rubber to meet the road on starting to figure out how to build the popsicle crane boom. As you know, I have been looking at many pictures and researching crane sites to try to understand what

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