Elbow Pipe (90 Degrees) - OpenSCAD

I've needed Elbow pipe for a hose that is suppose to end in the drain. 

The attached STL is the one I needed 11mm goes into the hose and 15mm goes into the drain. 

It's very simple to modify the sizes with OpenSCAD parameters (I've tried to make the sphere joint as small as possible with different sizes, but you might want to fiddle with the code if you want to make it little bit smaller).

The print works quite well laying down and with organic support attached only to the plate