How to weld a rolling ball sculpture - Part 2: welding a T-joint

Here's artist Tom Harold's second instructional video on how to make welded rolling ball track sculptures. This video covers the basics of welding a T-joint, a commonly used joint in rolling ball sculptures. In the video, Tom shows the proper way to prep parts, tack weld, weld with filler rod, and the details of a track clamp -- one of the special tools he uses in making ball tracks.

See more work by Tom Harold on his web site.

Here's a link to top-rated books on welding. Why stop there? You can buy welders on Amazon -- many with free shipping if you have Amazon Prime, which is well worth it in my experience.

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The process of creating a kinetic boxer sculpture by Aaron Kramer

Artist Aaron Kramer created this wonderful kinetic sculpture of a boxer in motion. As is his custom, he started with a mechanism and no real plan. Working with metal, and joining it by welding allowed him to change and adapt the design on the fly. Here is a 19 minute video which documents the entire fascinating process. He has provided a running caption below the image providing insights into his thoughts and process.

From the artist:

I have always liked when others produce “process” videos. It gives me an insight into their brains that the finished piece doesn’t always reveal. Making things move is not a straight-line process. It involves putting together and taking apart a million times before you get it right. I like to see that messiness. It makes me feel human. In my case it took several thousand cranks and a whole lot of welds in order to breathe life into my little figure.

Here is where you cans see more art by Aaron Kramer.

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Learn to make rolling ball kinetic sculptures with artist Tom Harold

Artist Tom Harold noticed that many people in online forums had the same questions about getting started building rolling ball sculptures out of steel.

Seeing that no videos existed to directly address these questions, he put together the starter video shown here. This video is part one of a series that may end up being about three or four videos in length. This one focuses mostly on welding 1/8 inch steel rod. Great stuff!

You cans see more of Tom Harold's kinetic sculpture on his web site.

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Opportunity - a welded steel rolling-ball sculpture by Tom Harold

Here is a new rolling ball sculpture from artist Tom Harold titled Opportunity. I really like the tone-emitting ball drops!

From the video description:

It measures 52.5" x 33" x 11" and is made entirely of welded steel, clear coated to prevent rust. It features a motor-driven chain lift effortlessly supplying marbles to the topmost track that then divides into two tracks via a tipper-style track splitter. Once on their way, the marbles encounter a number of entertaining devices including a chime, four tone-emitting ball drops, three 360-degree loops, two spirals, wavy track, a four-ball collector, and a coil plus elements made from tubing, welded rings and over 51 feet of track with dips, curves and bends.

To check out additional kinetic art by Tom Harold on his web site or inquire commissioning a piece of fascinating by the artist.

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Laser-cut wood clamp for fusing your own belts with urethane belt material

Did you read my latest automton-making tips article? If not, it shows you how to fuse urethane belt material to make belts of any size for your mechanical projects. The method desribed works well and is much, much cheaper than purchasing a belt welding kit made for the job. Still, the method I present could be improved. Probably the trickiest part is pressing together the two ends of the just-melted belt material. If you are just a little off, or the ends slide, you will end up with a lumpy belt.

Michael Henriksen over at BustedBricks.com read my article and came up with a way to clamp the belts during the process. He's now offering a laser-cut wood clamp kit for a very reasonable £6 or about $9.00. Not only does it make holding the belts easier, but his new clamp allows you to use a soldering iron to melt the ends of the belting. Here's a shot of the clamp in action.

As you can see from the photo, the clamp makes the process easier and more consistent. It also allows you to use a a tool that many people already own or can get very easily. Check out this selection of soldering irons if you don't already have one. A basic model will do, though you might consider getting more than one tip and dedicating one to melting belt material.

Here is where you can get the new welding clamp for polyurethane belts.

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Ball run machine using stainless steel & pool balls

Check out this nice rolling-ball sculpture made entirely of TIG welded stainless steel. The machine features two different tracks fitted for standard billiard balls. The machine also has a clever chain-driven lift to raise the billiard balls to the start of the tracks.

See more rolling ball sculptures by Matthew Gaulden.

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