Spool Holder Redux center section Remix

I did a little remix of the center section to make it self supporting between the uprights, add a loading slot in the ring, and shaped the ring to be able to hold a piece of filter sponge.

STL, STP, and Solid Edge files included STL make need to be scaled 25.4 to switch from imperial to metric due to export issue. Be sure to rotate the file to be upside down to print with no supports.