The whole shabam with putting records on a spindle, on a way to expensive device was the reason I thought I could do it better.
While busy building a edge-driven UCRM from cardboard and 3D-printer parts I had to wait for my 0,5 RPM 12v motor and I thought why not give it a go with some Lego. We have 3 boys hopping around so piles and piles available including loads of technic lego and a 9v motor.
Build was pretty straight forward as you can see. The basic construction I came up with fits my tank perfectly. This basic form will probably fits most tanks when tweaked a little and can be removed very easy. In the beginning the option of glueing the Lego blocks crossed my mind but it seems that is not needed. Still have to wash my first record though. Building a 0,5 micron automatic pump system on the side and have to finish that first. Will post pics of that later on...
Added a generic .LDR file with a complete 3d model and a parts list in .XLS format.
Feel free to share this wherever you want and good luck building your own!