Multiple selector for extraction system.

I drawed this tool to manage the extraction of dust and shavings on my work bench.
it has 3 entrances and 1 exit
the exit used to connect to aspirator and to the other side, I use the 3 entraces, to connect to the tools like saw bench etc
its works really well in my workshop and I am sure this will be the perfect solution for many others like me.

measures of pipe fitting:

internal 29 mm

external 35 mm

to fix on work bench I used 6 pieces of hex nuts and bolts M6

have a nice print and a good experience.