Category Archives: Metal Working

Passive Diamagnetic Levitation

Here we’ll discuss passive diamagnetic levitation briefly. We’ll describe the construction of a levitator where a pyrolytic graphite plate floats over a rare earth magnet array. Given benign ambient conditions, the graphite will float essentially for tens or even hundreds of millennia. Continue reading…

Posted in Amateur Science, DIY, Engineering, Invention, Machine Shop, Magnetism, Metal Working, Open Science, Physics | 4 Comments

Truly Boring Little Projects & Shop Chores


Here are a few details of the “little projects” and shop chores that tend to occupy my time between longer-term “big projects”. Continue reading…

Posted in Amateur Rocketry, Best Practices, Energy, General Interest, Invention, Machine Shop, Metal Working, Rocketry, Safety, Tools, Uncategorized | 2 Comments

Maker Faire This Weekend!


Part science fair, part county fair, and part something entirely new, Maker Faire is an all-ages gathering of tech enthusiasts, crafters, educators, tinkerers, hobbyists, engineers, science clubs, authors, artists, students, and commercial exhibitors. Continue reading…

Posted in Community, Conferences, Crafts, DIY, Education, Engineering, General Interest, Machine Shop, Makers and Making, Metal Working, Projects, Science Education, Uncategorized | 1 Comment

Faraday Disc Unipolar Motor Modification


When I’m between major projects, I try to improve existing ones. I’m not always successful, but sometimes I surprise myself. Don’t get your hopes up this time – this work was more successful at pointing the way towards more work. Funny how that happens. Continue reading…

Posted in Amateur Science, DIY, Electricity, Engineering, Machine Shop, Magnetism, Makers and Making, Metal Working, Projects | 3 Comments

Collet Chuck


Some of my upcoming projects need some small parts machined on my lathe. The standard 3 and 4 jaw chucks that I have just don’t hold small parts well. The other day I broke down and ordered an inexpensive Chinese collet chuck and a set of 5C collets to go with the chuck. Since there are many different chuck mounting methods for lathes … Continue reading…

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Heat Treating Part III


Finally after a long delay I have gotten back to actually using the heat treating oven. I have actually used the controller described in Part II for a couple of other applications but now it is time to use it for the heat treating oven. Continue reading…

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Heat Treating Part II

I Finished assembling the controller for the heat treating oven. Everything is assembled into a small aluminum box. For the AC power connections I got a short heavy duty extension cord and cut it in half. One half to plug it in and the other half to plug in the oven being controlled. The controller itself is mounted in the front of the box along with a power switch. Continue reading…

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Heat Treating

I am in the process of building an amateur seismograph. This instrument will come close to the performance of a professional instrument. To achieve this it takes more effort than just cobbing together some simple gadget. One of the things needed for the instrument is a special leaf spring. Whenever I do a project that needs a special tool I use the project … Continue reading…

Posted in Amateur Science, Metal Working, Uncategorized | 3 Comments