Customizable C-Clip - Updated

I try to design from a purist standpoint, with as little glue and non-printed parts as possible. So I try to print snap-fit parts, which works fine if you can print your flexible parts horizontally. But when it comes to round pegs, it is difficult to print the notched snap-fit pegs you find in commercial projects. When printed, the flexible tabs tend to snap along the layer lines instead of flexing properly.

So, my designs, such as the modified prankapult, have been incorporating c-clips. They allow the round (or even square) pegs to have more width since they don't have to be flexible themselves, and still hold everything together.

I design mostly in Sketchup, and it has serious issues with precision and has no boolean support. This makes it difficult to properly shape the cutout for the c-clips and I finally got tired of fiddling with it.

So, I wrote an openScad (and openJScad if anyone is interested) version so I could make a clip of any size I needed without spending