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Post 53A – Calculating Buoyancy of a piece of PVC Pipe.

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UPDATE: I have added several new posts with a better way of creating a raft. PVC Pipe would be an expensive way of getting the job done, Plastic Barrels would be much much cheaper.

Please check out the following four posts. A Plastic Barrel Pontoon Raft Part 1

A Plastic Barrel Pontoon Raft Part 2

Continue reading Post 53A – Calculating Buoyancy of a piece of PVC Pipe.

Episode 53 – A new design project.

A friend on facebook came up with this picture and said he would like one of these. It turns out this is a good chance to talk about designing something.

In the audio I talk about the steps necessary to try to copy/modify this hammock-boat. I doubt that I would ever build one of these,

Continue reading Episode 53 – A new design project.

Post 52B — LibreCAD Tutorial 4 – Dimensioning.

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Dimensioning is the most not-fun part of CAD, but a necessary evil. Dimensioning is necessary because it provides the information necessary to build the object shown in the drawing. It is the most detailed part of creating the drawing and if you are not careful the dimension lines can create a mess out of the

Continue reading Post 52B — LibreCAD Tutorial 4 – Dimensioning.

Post 52A – LibreCAD tutorial 3 Adding a New View

I just uploaded another YouTube video where I created a new view of the bracket we created in the 2nd tutorial. This tutorial is mostly using the line functions, (horizontal, vertical, and parallel offset of lines) and trim. However, a few new things are also shown.

The layer visibility and lock settings are shown as

Continue reading Post 52A – LibreCAD tutorial 3 Adding a New View

Episode 52 – Why Design? Why CAD? 2D vs. 3D

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This Post is primarily a podcast and attempts to answer several general questions about CAD. Why design? How does it help you? Why CAD and not pencil and paper? Why 2D CAD and not 3D CAD?

Designing things before building them does several things. First and foremost, it requires you to think through possible problems.

Continue reading Episode 52 – Why Design? Why CAD? 2D vs. 3D

Post 51D Computer Aided Design LibreCAD tutorial part 2

I just posed a video to show how to use LibreCAD to create the drawing shown here. Although the drawing is not all that impressive yet, the concepts shown are. In a relatively, short time I show the following.

How to add layers including colors, line types and adjust the lines. How to draw lines,

Continue reading Post 51D Computer Aided Design LibreCAD tutorial part 2

Post 51C – Computer Aided Design – LibreCAD setup.

I have created a tutorial that describes the screen areas of LibreCad and the set-up dialogue boxes. It totals a little over 5 minutes. It only took me 20 hours to get it done… Needless to say, I had some software issues! Long story there, but basically two pieces of software did not play very

Continue reading Post 51C – Computer Aided Design – LibreCAD setup.

Post 51B – Sharing of CAD files.

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A schematic I designed and drew in QCAD

Earlier today I recorded a pretty good rant about the problem of sharing files between software that is supposed to work together. I called it “Embrace, Extend, and Extinguish” from the quote made famous in the Microsoft “browser war” trials.

Instead of putting you all through

Continue reading Post 51B – Sharing of CAD files.

Post 51A — Computer Aided Design – Librecad.

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Sooner or later it is necessary to get your ideas “on paper”. Scale drawings are the norm for “working the bugs out” before you actually start cutting pieces of material and sticking them together.

Scale drawings used to be done on paper using drafting boards, triangles, compasses and other accurate drawing tools. Today that is

Continue reading Post 51A — Computer Aided Design – Librecad.

Episode 51 – Vertical Gardening Arbors

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The top of an arbor T post

Why is this a good idea?

Many common vegetables are vining plants. Examples are cucumbers, squash, pumpkins and melons. These plants if given a chance will attach themselves to trellis supporting the vine. By encouraging these plants to do so, the fruit will be off the ground,

Continue reading Episode 51 – Vertical Gardening Arbors