mattress pump adapter for 2mm silicone tubing
thingiverse
Im making a pneumatic lego v8 and my mattress pump im using had a needle to big. so I made a thing that press fits into it. its an index pump so I don't know if its standardized or not. the needle is 3mm and the base is 12.8mm but I gave a step and obj so you can edit it how you please.
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