This ring will be used for the delta printer that is in progress.
Define the outer radius of the ring with the width of the ring and how many leds you want to incorporate.
A inner edge can be define so it can fit into a hole or just add ears to the ring to mount it to a flat surface.
Once the ring is actually printed I will post a photo!
[update 2014-10-13]
V2 is available with bugfixes and the possibility to specify how many rings you would like. Number of leds is per ring and no outer width is set, but the inner width and ring width.
Please notice that if you add an outer edge 1mm is added to the total width, same as the inner edge!