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how to model a 1/4" bsp external and internal thread for 3D Printing?

Bobby Loh

New member
Hi Everyone,

I would like to model a stand size BSPP 1/4" type part with internal and external threads that will work with standard 1/4" threads.

I can't seem to find a way to cut the profile and feeling a little lost on the point where I pierce on to the helix.

Could anyone help please?


My Solidworks 2014 3D CAD file is downloadable here - https://www.hightail.com/download/UlRRZUNvWlRiR0lYRHNUQw