[Fred Murphy] has an old Fisher-Price music box/record player that has lost many of its disks over the last 40 years. It’s a very simple device – concentric grooves in a plastic disk have plastic bumps that are picked up by the tines of the record player ‘cartridge.’ Seeing as how this toy is basically a music box, [Fred] figured making his own records would be well within his grasp; he did the reasonable thing and made a Stairway to Heaven disk for a toy music box.
To figure out where to place the ‘bumps’ for the musical tines, [Fred] built a small tool in Visual C# 2010 that allowed him to place notes on a scale and generate the requisite GCode for the disk. After sending this file to his CNC mill, [Fred] had an acrylic disk that played Led Zeppelin on a child’s music box.
Of course, this Instructable wouldn’t be complete without a video demo of Stairway blasting out of this record player. You can check that out after the break.