Category: Cool Stuff

4’x8′ CNC Plasma Table – Design

We’re working on a new CNC machine, a 4’x8′ CNC plasma table. This post is more for our own personal use while we piece together our design, but it’s also here for anyone else to use as well. It will be updated as the project progresses.   General research and information   Drive: Rack and […]

Building A Ring Roller

A project I wanted to do required me to roll some steel rings from round rod of varying thicknesses and diameters. I looked at commercial rolling tools and even the cheapest ones, such as the offerings of Harbor Freight, were $80. But they didn’t have exceptional reviews and they would mar 1/4″ rod, something that […]

Schlieren Flow Visualization

A really neat technique for visualizing the flow of fluids is called Schlieren flow visualization (pronounced: sh-lear-in). By using either special mirrors or lenses, the density gradients of a fluid can be seen. Examples would be the heat rising from a candle, or the aerodynamics effects of a bullet traveling through the air. This technique […]

My first meteorite

Just received my first meteorite today! I was first intrigued by meteorites on my last visit to the Smithsonium in Washington D.C. a couple years ago. They’ve got a large and impressive collection of them. The cross sections of meteorites are very interesting as well. They’ve got a “crystal” metal structure unlike anything on earth. […]

The really awsome Gear Ring!

If you’ve not seen this ring yet, you’ve definitely got to check it out! Not only does it look cool, it’s also very addicting to play with. Both the outer races rotate, simultaneously rotating the little gears along the center. It’s quite impressive, which is why I have one of my own. Created by the […]

Incredibly strong (and expensive) VHB tape!

I had a free gift certificate to the website Inventables.com which was burning a hole in my digital wallet. I was on a lookout for something to buy that was actually useful to me. I came across a roll of tape that they called their “Screw-Strong Tape”, and described it as being a replacement for […]