Very similar to this one: http://www.thingiverse.com/thing:1776528
This one is done for Nikkor 50 F1.8G (58 mm) but i think it work in all 58 mm lenses ... (i think !).
It works with a new kind of led, these one: http://fave.co/2d6A9qk
These led are called LED COB, for your information and do not cost a lot. I love them.
U need a 12v 1A power supply too.
About wire connection i use these: http://fave.co/2cXx5cY
These are simple banana bullet connector but u can use whatever u want but i suggest a connector so u can use one power supply for more illuminator ...
Good Luck !
58_mm_part_A.stl | 1.8MB | |
58_mm_part_A_for_tamron_90_mm_macro.stl | 1.8MB | |
58_mm_part_B.stl | 1.6MB |