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About RF Cafe

Kirt Blattenberger - RF Cafe WebmasterCopyright
1996 - 2016
Webmaster:
Kirt Blattenberger,
 BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

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 AirplanesAndRockets.com

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"Marble Machine" by Wintergatan
Videos for Engineers

"Marble Machine" by Wintergatan - RF Cafe Video for EngineersMaybe you are one of the more than 11 million people who have already viewed this incredible "Marble Machine" video, by Swedish musician Martin Molin. Molin designed and built his wooden music machine using aircraft plywood, ball bearings, Lego blocks, pressure transducers, plastic tubing, lengths of wire, springs, and a host of other off-the-shelf components, none of which appear to have required custom metal machining. The huge wooden gears were designed on his computer, ut out on a band saw, and assembled with glue and screws. 2,000 metal marbles are the lifeblood of the instrument which, by function, must be classified as percussion. Even the integrated base guitar is 'played' via striking by marbles a la hammers hitting piano strings (which is a percussion instrument). In fact, the way each event is triggered is exactly the way a wind-up music box mechanism works with little protruding nibs controlling timing and initiating tones. Mr. Molin's innate sense of 'how-to' is Music Box Mechanism - RF Cafedemonstrated in devising a method for creating a snare drum effect with grains of rice and achieving vibrato on the xylophone with variable-geometry resonance slot. Most, I will guess, have only watched the final production - which had me nearly mesmerized and awestruck by the juxtapositioning of mechanical design genius, a keen musical sense, the ability to create and implement hardware, and even having a handle on integration of electronic sensors. This is the penultimate realization of a Rube Goldberg contraption and a Dr. Seuss creation a la those played by "the Whos down in Whoville."

As an RF Cafe visitor, I assume you are interested in the details of the Marble Machine's evolution and operation. Therefore, below the main video are posted some of the accompanying videos showing how the whole thing came together.

 

"Marble Machine" by Wintergatan

How It Works - Part 1 (Wintergatan Marble Machine)

How It Works - Part 2 (Wintergatan Marble Machine)

Prologue #3 Musical Marble Machine - Sizzle Cymbal

Making Gears for the Lifting Mechanism - Prologue#6 Musical Marble Machine

New Instrument Build Prologue #1

 

 

Posted March 9, 2016