After finishing the enclosure http://www.thingiverse.com/thing:1144746, i decided that it needs a nice spool holder to finish it off. Now you are welcome to use it anywhere else just keep in mind that the distance between the centre of the holes on the legs is 105mm.
The two spool holders are for a 50mm diameter inner whole like the once you get from plastics2print. And the spool i have is a 200mm outer diameter which fits perfectly with about 5 cm of space to spare.
Please note the fingure wheel is not my design but from here: http://www.thingiverse.com/thing:3924
Update 1: I have included the 123dx file and a step(.stp) export.
Please note for the supports i would advise using 1 mm pattern spacing and you still may need to do some post sanding. I printed them one by one as a whole.
Some sanding may be required (for the back of the legs) if printing as a whole, but for me it was ok as i wanted to paint them. I could have design the legs straight but they look much better like this plus it allowed me to use a 20cm rod on the enclosure :)
4 x M8 nuts
1 x M8 threaded rod (min 20 cm but recommend 25 cm if you are attaching this for the enclosure)
2 x 608ZZ bearings
4 x M3 bolts and nuts