
Making a clean sweep – how to make a magnetic sweeper
After mumblings of discontent about the potential punctures and those “messy engineers”, I decided to make a simple magnetic sweeper. The concept is not new. Magnets have been used for picking up road debris for a long time, and they are very effective.
The challenge, though, is where to find magnets that are strong enough, and how to effectively remove collected steel waste from the magnets. In an ideal world, it would be great to be able to turn the magnetism off and on.
This can be done, of course, by shifting the magnetic poles in the same way that magnetic chucks do on a surface grinder.
Very effective, but I couldn’t see our tool makers in the shed being happy to see the magnetic chuck from the surface grinder being “borrowed” to pick up nails.












