Similarity - because the harmonograph works with damped oscillations, and this homemadeproposed by the author of Instructables under the nickname mrmortensen - no. By the complexity of the received images, the device occupies an intermediate position between the spirograph and the harmonograph.
The master takes two players for vinyl, a screwdriver, a glue gun, two rulers, wooden blocks, glue stick, washers, paper and other tools, components and materials:
The master removes the covers from the players, saving them, as well as the hardware on which they were held, so that if necessary, return them to their place.
Makes two wooden squares. They are needed to raise the rulers above the central pins on which the records are put on.
Drills holes in squares:
Glue the squares with hot-melt adhesive to the faceplates of the players:
Reduces rulers if necessary. Drill holes in them as shown below.
Connects rulers with squares using self-tapping screws:
On the opposite side, the rulers still drill through the hole, install a pen or pencil, fasten with a clip for notes:
Glue a sheet of paper to the table with masking tape:
And he discovers that the rulers still need to be raised, and the washers added.
The device is ready, the wizard checks the result in action:
Images obtained with its help, it is easy to take for those obtained using computer graphics - they are so accurate.