T-Connector Hose Tube with parametric Diameters and Length

This fully parametric T-tube joint allows to connect 3 air tubes. The 90° side tube can have a smaller diameter than the 2 main inline tubes. All tube diameters, wall thickness and tube length can be easily adapted via OpenScad Customizer. The provided STL files are some examples of typical setting combinations.

It prints nicely in PLA with the 90° tube heading upwards, I propose to use some brim for better plate fixation. A small amount of support (only inside the horizontal tube) maybe necessary, but this depends on your printers capabilities to produce overhangs.

I use this with 37.5 / 37.5mm to connect 3 x 38mm suction air tubes as part of an inhouse venting system.