Heavy duty filament spool - for mendel (Q51768)

Remixed with http://www.thingiverse.com/thing:10254 (spindle for Randyy's spool), and http://www.thingiverse.com/thing:11250 (one piece printable arms) to adapt it for the RepRap. It's not very different from the original model, but I spend many hours in Sketchup tweaking it : correcting the scale in mm, getting rid of many mesh problems (face orientations and holes, especially in the hub), lower the height of the hub and the arms, join the arms in one piece like Fil did with the Randyy's ones, fuse the RotoScan's clip with the Tjhowse's spindle, organize the parts to be production friendly for a Mendel bed. And finally present the whole in a "new thing" to make less works for the other who want to print that spool for their RepRap :) For me it printed good, hub and spindle are maybe tight to clip at first but can spin freely after some movements, sometimes the dovetails can require a little sanding but its a really nice spool, thanks RotoScan ! (video of spinning : http://youtu.be/9SCrJz4pWRs)