Parametric 3-way joint
pinshape
Three-way joint summary: I found a video on Reddit that I'd like to replicate. The design is symmetrical, so just print it twice for both ends of the joint. Keep in mind that some sanding might be necessary depending on your desired level of snugness or looseness between parts.
Download Model from pinshape
With this file you will be able to print Parametric 3-way joint with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Parametric 3-way joint.