Multiway tee joints
thingiverse
Note: I've updated the scad file (v1.1c -> v1.1d). It fixes what I think may have been a weird slicing issue that caused some fragility. It also allows for cross drilled holes incase you want to attach the connectors without using glue. I needed 5 and 6 way tee connectors for a PVC frame I'm putting together. I found doommeister's work (http://www.thingiverse.com/thing:18802) and modified it as necessary. You'll need to manually tweak the settings to get the dimensions you'll like. Look for the comment "Customize these parameters". Uncomment the model you want to make under "Available models". I'll look into using Thingiverse's customizer later to streamline things!
With this file you will be able to print Multiway tee joints 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 Multiway tee joints.