20mm to 40mm barb adapter
thingiverse
Model created at request of Sputnik72. Need was for an adapter to join 20mm to 40mm rubber hose. This should be the same as 3/4in and 1.5in US hoses. Max overhang angle 60 degrees, 3mm wall thickness. Not yet printed or tested. I'll update notes based on Sputnik72's results. V2 uploaded with 0.5mm fillet applied to all sharp edges
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