To make a bolt and a nut, what sequence would you use?

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bhs67
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To make a bolt and a nut, what sequence would you use?

Post by bhs67 »

FreeCAD 0.20. To make a bolt and a nut, what sequence would you use? YouTube video clips can be hard to follow ... and some are using pre-FreeCAD 0.20.
Bance
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Re: To make a bolt and a nut, what sequence would you use?

Post by Bance »

Fasteners WB. From addon manager.
bhs67
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Re: To make a bolt and a nut, what sequence would you use?

Post by bhs67 »

I should be more specific ... PVC pipe threads ... male and female ... about 1.7 inches in diameter.
Threads1.jpg
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Bance
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Re: To make a bolt and a nut, what sequence would you use?

Post by Bance »

For a boss like that, probably a revolve followed by an additive helix.
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NewJoker
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Re: To make a bolt and a nut, what sequence would you use?

Post by NewJoker »

Check this wiki page: Thread for Screw Tutorial
Bance
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Re: To make a bolt and a nut, what sequence would you use?

Post by Bance »

Wow that page really needs an update!!!
chrisb
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Re: To make a bolt and a nut, what sequence would you use?

Post by chrisb »

Bance wrote: Thu Jun 16, 2022 10:37 pm Wow that page really needs an update!!!
Yes, but it also still has very valuable contents.
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.
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papyblaise
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Re: To make a bolt and a nut, what sequence would you use?

Post by papyblaise »

you can read this tuto https://wiki.freecadweb.org/PartDesign_AdditiveHelix
I don't know wath is the standard Imperial thread for 1.7" (1 3/4 :?: )
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bhs67
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Re: To make a bolt and a nut, what sequence would you use?

Post by bhs67 »

I go to the hardware store and buy a PVC 1 1/2 inch male adapter.
threaded pvc 3.jpg
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The threaded diameter is slightly smaller on the front end, so it tightens as I screw it on a 1 1/2 inch female adapter.

When I go to a hardware store, all PVC pipes and threaded adapters are the same throughout the country. Whatever it is, I buy it and everything fits.

It would be good if there were a standard library of threaded PVC pipe adapters for US folks.
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mfro
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Re: To make a bolt and a nut, what sequence would you use?

Post by mfro »

Pipe threads are an outright mess regarding standardisation. The US uses NPT ("National Pipe Thread") or NPTF while in Europe we usually have Whitworth Pipe threads. Both come in various forms - tapered male, cylindrical female or the other way round.

What you have looks like it's NPTF ("National Pipe Tapered Fine" or "Dryseal"). Dimensions can be found here: https://www.engineeringtoolbox.com/npt- ... d_750.html
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Markus
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