Musical marble machine created by Martin Molin plays amazing song

Videos of this machine have been all over the internet for the last few days. Many of you and taken the time to write to me to make me aware of it. I thank you all!

The machine, made by Martin Molin, uses an elaborate marble track system to create a sophisticated song. There are some 2000 marbles raised by a tracked elevator which is powered by some vigorous hand cranking. As they descend, the marbles strike the right parts of a glockenspiel, percussion instruments, and bass guitar. A lever system allows the operator/musician to turn selected instruments on and off. This allows the machine to be played in a way that goes beyond simply turning the crank and allowing the programmed track to run.

It's an amazing accomplishment technically and musically. Bravo!

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Weight-driven rotating marble machine powers a kinetic sculpture

Check out this clever weight-driven kinetic sculpture. The marble moving through the tracks cause the box to rotate, which acts as as type of escapement.

From the creator:

The thread connecting the two weights is wound around a reel on the axis of the front part. As one of the weights is heavier, the front wants to rotate. Where the marble reaches the "bottom", there are two levers. These levers prevent the machine from spinning while the marble is on the track, and release the machine every time the marble hits one of them. The levers also work as a ratchet mechanism to allow easy winding up. The marble probably feels a bit like Sisypho

[ Thanks Felix! ]

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Laser-cut marble machine kit with a catapult lifting arm

Check out this nifty little marble machine kit from the folks at RetroTime. The most unique feature of this little marble track is the arm that lifts the ball bearings to the top of the run. A geared hand-crank powers a small arm, something like one you might see on a catapult. No, it doesn't throw the ball bearing. (Sorry, if I gave you the wrong idea.) It simply places the steel ball at the top of the track with a smooth motion. It looks as if you can effortlessly keep marbles flowing down the track at more that one per second. It creates a nice rhythmic motion and sound that I find soothing.

The kit includes laser cut wood components, steel balls, a screw pack, sandpaper and wood glue. The product page for the kit also features a nice tutorial video.

Here is where you can get this laser-cut marble machine kit.

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The Busted Bricks Marble Machine #2 kit has a wheel elevator and two tracks

A while back, I posted about a new laser-cut marble machine kit from Michael Henriksen, the man behind BustedBricks.com. His second marble machine design is shown in the video. It is is now available as a kit also.

Marble machine #2 is a larger, more complex machine than his first. It has a 150x150mm base and stands 170mm tall. It features a wheel lifter to elevate the 7mm chrome steel balls, which come with the kit. A track switch distributes the balls between the two independent tracks, one of which has a collector that dumps the balls when three have been collected. The lifter wheel is pre-assembled to make sure everything operates as it should.

If you would like to get a good sense for what is involved in making the kit, here is where you can download the assembly instructions.

Here is where you can get the Busted Bricks Marble Machine #2 kit.

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The clatter and whir from the wooden marble machines made by Paul Grundbacher

Woodworker Extraordinaire, Matthias Wandel, has a web page on his informative site featuring seven incredible marble machines made by Paul Grundbacher.

According to Grundbacher, a native of Switzerland, he usually skips the other design steps and jumps right into working with wood -- mostly ash, maple, and linden (aka basswood) scraps a from a local factory. Why not? It may not be the most efficient design process, but it's not all about efficiency. Sure, many of his failed experiments may end up going into the fireplace, but he spends his time working in the medium he prefers. I admire that.

Grundbacher makes his own dowels using a technique he learned from his father. That's smart, given how warped and out-of-round some store-bought dowels are.

Here is the page on Matthias Wandel's site about Paul Grundbacher's wooden marble machines.

[ Thanks Walter! ]

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