503 Marble Physics CV Generator

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Item: N13-4621

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503 Marble Physics CV Generator


Newtonian physics on a modular synth! The ADDAC503 Marble Physics is a CV generator based on the mechanics behavior of a marble on a tray.

Through this realtime physics simulator you'll be able to control several parameters that will affect the behavior of a model of a spherical object against a plane. You can tilt the plane or bump the marble with a certain strength, which will cause it to roll and bounce on elastic walls.

The model will output the object's XY position or velocity and you can control other physical parameters, like the walls' elasticity or the strength of a bump. When the marble hits walls the bounce output triggers and you can additionally lock the X axis for a one dimension simulation. Finally you can also set the overall speed of the simulation.

By controlling all of these properties you be able simulate several scenarios where the marble falls, gets gently pulled by gravity, orbits indefinitely or bounces on walls like a pinball. Truly engaging physics simulations!

To better understand how all this awesomeness works jump right into our media section for a demo video.


  • Uni and bipolar operation.
  • X and Y tilt.
  • Wall elasticity.
  • Simulation Speed.
  • Bump with strength control and dedicated physical push trigger.
  • X axis lock for one dimension operation.

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  • Eurorack Modular
  • Width: 10HP
  • Depth: 5.2 cm
  • Current Draw: 150mA@+/-12V

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