Wedge Expander

An expansion wedge for securing a bolt within a tube, inspired by the quill stem of a bicycle. This model is customizable for your specific dimensions. It should be printed at high density (or solid) since it is meant to be pressed between two metal nuts.

The default values will fit a 3/8" bolt and nut inside of 3/4" EMT conduit. By using an eye bolt on each end of a length of conduit, you can make a sliding curtain rod. (That's right, the entire rod, not just the curtain.)

I have 2