DUST COLLECTION 100MM (4") FLEX TO 150MM (6")BLAST GATE OR PVC.

This is a simple transition piece threaded to accept 100mm (4") flex duct transitioning to a standard 6" metal blast gate.   

The 6" end is tapered on the inside to fit the metal casting and the outside dimension matches PVC pipe, so that it will also fit inside a standard female PVC plumbing fitting.

PLA is fine for this print and it can print standing on either end without support.