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LibreCAD Tutorial – Adding Blocks to the Parts Library

A small library of nuts

In this tutorial we are taking the library of nuts we have created the final step and adding them to the Library Browser. Although this sounds as if it is a minor step there are a lot of gotcha’s and things to think about. Foremost of all is as

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Progress on the Sheet Metal Box and Pan Brake.

The Brake Base and Hinged Board

I have mortised the hinges using the fixture I described in “Making a Hinge Mortising Fixture” and have assembled the boards as I described in “The Hinged Plate for a Sheet Metal Bending Brake”. Like always there is good news and there is bad news. I think there

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Thinking my way toward the ideal sheet metal brake.

a generic pan.

There is a term called “paralysis by analysis”. It is the trap a person can fall into trying to create perfect and never getting anything done. However, there is also a term for going out and purchasing something that sounds great, and then finding it will not do the job. It

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Building Skills to work through problems – My E-mail Problem.

I decided to post this one as an audio podcast. The story is long and detailed to tell all of it, but it is still superficial in a way because I did not talk about the details of the programs. In other words this is mostly an overview. My main reason for sharing it is

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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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Experimenting and working around problems in LibreCAD

It has been a little while since I have posted anything and especially a long time since I posted anything about CAD. I helped a viewer with some CAD problems and decided it might be helpful to others. This new video was posted tonight.

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Understanding why cars reach a maximum speed.

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We still have two basic op-amp circuits to talk about. The problem is these two circuits have names associated with math terms. As usual I am going to do everything backwards. Math is normally taught before a reason is given to understand the math. But no, I can’t do it

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The process of Creating and Making

The hub cap I found

This last week I have received some great e-mails. This post is not so much deep analysis like most of the ones I post, but more about having fun creating and making things. It is also an example of my reply back to Michael about the process of creating

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Transformers and mutual inductance, but probably no mutual admiration.

A SMALL STEP-DOWN TRANSFORMER.

Tonight’s post is about two coils tightly coupled on a common iron core. When the fields of two (or more) coils affect each other it is said they have mutual inductance. I thought seriously of embedding an old song by Teresa Brewer called “Mutual Admiration Society” but in the case

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Through the Looking Glass – Duality – The Inductor

The Inductor circuit.

Whenever you are learning something new it is best to compare and contrast with something you already know. Tonight we are going to talk about the inductor, the crazy sister to the capacitor. In a few ways this is similar, but being that she is crazy everything is different and she

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