How to make a DJ turntable from old computer parts.
Some time ago I have discovered a piece of software that is using the mouse movement (up-down / left-right) to make scratch-alike effects on a virtual turntable, the way the DJs are doing it in clubs. It is the TerminatorX software, developed by Alexander Koenig (http://terminatorx.org/).
But using the mouse is not even close to a real turntable. So here is a way to make from an old mouse and other parts a more realistic turntable.
I have tried several models made from recycled computer parts, and I will present you all of them here.
Step 1: Preliminary information
The first think you should know is that TerminatorX runs on Linux. There is no windows version yet. I have tried it in Ubuntu and worked fine. It is in the repositories, so it is very easy to install.
The software is designed to use the movement of the mouse on the X and Y axes and execute a custom chosen action. Usually I use one ax for scratching and the other one for volume control. Also each of the three buttons has a specific function. Left for grab (and scratch), middle for mute the current virtual turntable and right button for change to next turntable.
The turntable consists of 3 parts:
-a mouse with ball and 3 buttons (NOT an optic one)
-a spinning plate
-a table or support for them
Functioning: The spinning plate rests with one edge on the mouse’s rollers and they will spin together. When you spin the plate the mouse will detect it and will send the information to the software.
Materials that I used: one old (but functioning) mouse with 3 buttons and ball, an old CD-ROM, an old hard drive, an old keyboard, a CD, a floppy disk and a vinyl record. For putting the parts together I used double sided adhesive strips and magnets.