Find the design here on onshape: https://cad.onshape.com/documents/e9ce98f192e92058467023db/w/d1930d8443fc086ac65ad2c3/e/25f32d0984d270eb1b4d8fc2?renderMode=0&uiState=66ee93e4d5d2c05939eb0abf

Inspired by the part I remixed from. I removed the screw and made a clamping connection instead. It's very secure!