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Graphical Construction – A parallel line through a point and equal divisions on a line.

Dividing a line into equal divisions.

A new graphical construction video was posted tonight. This shows how to make parallel lines through points and that procedure is used to divide a line into equal parts.

These procedures are published in several books and were taught back in the days when hand drafting was taught.

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Graphical construction – A line through a point and tangent to a circle.

Scene from the video.

This is another post in the series of solving graphical problems. I have yet to talk about why these skills are important and that will be in an post soon. However, if you look around at man-made things around you, you will notice very few are simple “boxes”. Almost everything

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Graphical Construction – Bisecting an Angle

Bisecting an Angle.

In the last post I bisected a line, so in this post we will bisect an angle. Again this is trivial in CAD, but a little more complicated in”real life”. Basically all that is being done is to: First, make the two legs of the angle the same length and then

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Graphical Construction – Bisecting a Line

The third step: Drawing a line perpendicular to the edge of the paper

This is the first of a new series of videos showing how to solve special drawing problems in CAD but more importantly also manually while laying out a project in sheet metal or some other material. Today’s example is really three

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Making a Clamp into a Spreader.

The clamp being used as a spreader

As I said in the last post I took a little time off to zoom out and think about the direction of this blog. Also as I stated I worked on some maintenance both on this site as well as at home and my vehicles. Some of

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Brains not tools… Making an Enclosure for Electronics.

Step 1 Create the Plans.

Sometimes you just gotta do it yourself. Even if it probably makes no sense to do it. I spent a big part of the weekend building an enclosure box for the power-supply I have been using with the thermistor board. However,I consider it a success and I learned a

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The Thermistor Board is Calibrated!!!

Final Calibration.

The Thermistor Circuit Board is Calibrated! I was able to successfully calibrate it at 0 deg C and 70 deg C. Now is the time to think about what went right, what went wrong and what is the next step, both for this blog and with this project.

What Went Right!

First,

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Update on testing the thermistor circuit board.

The final version of the circuit.

All the troubleshooting is complete and the circuit is working well. They say experience is the best teacher… just too bad it comes too late. My dad has a related saying: “Experience is the best teacher, but it is a heck of a lot easier if it is

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Testing Testing Testing … Smoke ’em if you got ’em.

The component side of the Thermistor Board.

Sooner or later there comes a time… a time when you just got to plug it in and find out if it is going to work. Hence my title “Smoke ’em if you got ’em”. Success, no smoke came out. However,there has been more than one problem.

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Encapsulating the problem… Waterproofing the solder joints.

Coatings I tried to use to insulate the solder joints.

Almost everything in design is a compromise. Even something as simple as insulating wire connections that may be exposed to water. It always comes back to: “What are you trying to accomplish”, and even then often there are compromises. In the case of the

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