Faberdashery Spool: easy-print + light remix

If you want to print or remix this thing also check out the instructions.
I like 3DMakeMe's design as it's functional and goes well with his/her Spool Stand (http://www.thingiverse.com/thing:296971 / http://www.thingiverse.com/thing:370344). I found it hard to print though: the almost horizontal overhangs on the forks never turned out well on my printer.
I redid the design in FreeCAD trying to copy the original as accurate as possible. Mostly round metric numbers made that easy.
From this basis the following changes were made:

• removed the hexagonal pockets from the fork (too easy to mess up first layer),
• changed the profile of the connections to have no overhangs less than 45°,
• made sure the overhangs don't start at the first few layers (to allow using a brim),
• built in tolerances/gaps (0.15-0.4mm) to make parts fit,
• and as a bonus created a "light" version that takes about 35% less material and resembles a film spool.