This insert will enable you to us the normal reel support on the side of an UP! 3D printer with a different central hole i.e. new color filament reels (see photo)

This wind barrier for the UP! 3D printer has a switch to open and close the vents that were introduced on V7 to blow cool air across the nozzle to enable better support and raft removal. This lead to a slightly weaker bond between the layers and some de-lamination on larger prints. Now you can switch i.e. cover these vents when not needed.

Thanks to sconine for his Mechanical Animals thing:11980 I made a few changes to his dolphin i.e. I redesigned the stand in two parts to enable flat printing and better holes and made detachable waves so you can print them in different colors. I also reshaped the dolphin to make it look more rounded and it is a bit bigger, unfortunately this accentuates the print layers.

My new 3D printer (from 3dprintingsystems.com) is going flat out and here is my latest job.
When I was a young guy...........yeah years ago I remember having an old piston and conrod sitting on my desk that I used as a desk tidy.......so I though lets print one.
I made it all up, sizes etc from google images of the parts and produced the files in Solidworks.
I even got carried away and made some rings..........the oil scrapping ring is very thin hence the few bits of support to be cleaned off that you can see in the photo.
I have laid the rings one on top of the other with a very small gap between..........this allows you to peel them off one another after printing.
Would be nice in a grey color with a bit of oil or grease stain to finish it off. Have fun!!

Man am I happy with my new UP! 3D printer (from 3dprintingsystems.com)
I designed my propeller using SolidWorks in pieces so I could dismantle them and to make each part the right size for my printer.
You will see that the blades have a rim on the top and bottom of their mounting that slips into the corresponding channels/recesses in the nose cone and base. I have put a spline on the bottom of the nose cone shaft to provide alignment for everything and to give a positive drive when used. Unfortunately it makes the keyed hole for the drive shaft rather small.
The blades are able to slip in this housing if they hit something but unfortunately they might also slip if there is too much drive power. Next time I would run the spline down the whole shaft and put them on it too.

Thanks to BME_sundevil I was able to pull the original model apart using SolidWorks and print each part separately on my UP! 3D printer. There was very little support material except on the springs but with care didn't they turn out fantastically. I am chuffed with the quality of my UP! 3D printer.