The Best Way to 3D Print Threads; Nuts, and Bolts 

I couldn’t have desired a better outcome! Thank you for your comment.

Thank you! 🙏

Thank you. The cut location was mostly just trial and error. The factor causing poor fit was material drooping on the lowest, more horizontally overhanging layers, and crushing there in tests. The top cut can usually be cut smaller. I found the shape where this problem would visibly go away by viewing it layer by layer in my slicer, and printed a few tests from there. They would have turned out even better with rafts.

@@Inventorsquare Very interesting, I'll definitely have to look into that! I also never would have thought a raft would work but that's really good to know too, thank you!

you should try slicing it in the new exclusive experimental mode!

Thanks. Maybe, what would you like to know?

Thanks MyMiniFactory!

Thanks, Joel. Good luck. I’m glad you are optimistic.

Thanks!

Hey, Tom. Thanks for watching, I really enjoy printing this way. Interesting question. I should show that much better next time. The way it was done in the software made the height of the triangle mostly arbitrary. The height just needed to extend beyond geometry as to not create any planar errors after using the boolean cut. The formulas in the context of classical machining are also unlike the processes easily used to design in FreeCAD, but are adaptable. For British Standard ISO, the major diameter of an internal thread such as a nut, the width of the flat should be p/8 and the height of that flat should be H/8, with p = pitch and H = 0.86603 p For the minor diameter of an internal thread, the width and height are p/4 and H/4. The reverse and fitting dimensions are true for external threads such as bolts, and of course subjective to adjustment for close, medium, and free fitting standards, and to maintain tolerable production. Hope that helps.

@@Inventorsquare thanks for the detailed answer !!

A triangle was used for both the threads and the relief but either can be done. Triangle will have faster compute.

@@Inventorsquare fantastic input i had got a diamond shaped cube to achieve the task but triangles would be a bit simple er for sure lol

O______O Dual extrusion meat and bone filament.

Awesome video!

They call that the machinist’s bible! Haha. I’m glad you liked it!

Hahaha I thought he did also

Thanks for watching. Glad you liked it. I got lucky. It’s my Grandfather’s edition from ‘77. No newer thread forms or additions on metallurgy, or any of the newer cutting materials, and whatever, but it is still great. The trick is to find them as cheap as any other old book at Goodwill and other thrift stores, otherwise you PAY.

@@Inventorsquare its funny too, because I have that same green version ,

FPV trys They have a big personality from years of tinting with the colors of honest work. It tends to make the new books jealous.

@@Inventorsquare you could find free pdf version online of it