Customizable Universal Connectors - round

Hello Thingiverse members!
I couldn't find any good Universal connectors here on Thingiverse, so I created some and would like to share them with you.

The idea behind was initially to build a 2D frame for my home theater screen, so I was thinking how to create a cheap and easy wooden frame.
I missed some universal printed connector pieces, so I've created a simple SCAD which can generate different types of connectors.

As this is Version 1 only, the connectors are round (both outside shape and the holes), but next version will be more versatile.

A few parameters to use:
1.) Outer diameter - how thick the connector wall will be (in mm)
2.) Inner diameter - hole size in mm. My wooden sticks were 8mm thick, this is the default value
3.) Connect length - the length of each connect (or "leg") in mm.
4.) Faces - number of faces for the shape to set the "visual quality" and speed of the print


STLs attached are generated with following parameters:
outer_diameter = 15