Screw and bolt

Rhino
1

Good morning, everyone,
I would need some help.
I have made a fastener: male and female and created the slightly larger thread in the female, but the resulting casting does not fit: I can’t screw one part (male) into the other (female). Where do I go wrong? Thank you all, Mirco
herewith the rhinodesign
WHY IT DOES NOT WORK.3dm (10.4 MB)

2

Go to “Food for Rhino”. Then do a sarech for “BoltGen” you can pretty much make any size and thread you need. Been using it for years and it is wonderful. Danny

3

Any casting will not work, you need to either clean it up by hand or if you have a lathe lightly clean up the threads. Danny

4

you will always need to tap threads and die bolts.

fwiw, you can download a step file of just about any nut or bolt you’d ever need from Mcmaster-carr.

3 Likes
5

I think the Intersect command is will help you here.

What creating an interect curve reveals is that the male and female parts are still intersecting. So you don’t have clearance everywhere. It looks like the threads have plenty of clearance but central bore of the threaded part has no clearance.
The enclosed file shows how you can trim away the bore of the female part so that it has .1mm clearance.
More clearance.3dm (4.2 MB)

Oh and don’t bother looking at McMaster-Carr there is nothing there that will help with this.

6

Thank you very much, I’m doing it again and try to clean

7

thank you for you welcome info

8

thanks

9

Loved BoltGen, used it for years, but it has stopped working on my Rhino v7 and v8, tried reinstalling it but no go. and the original writer seems to have closed down his site and e-mail. Can I make a request that McNeel add it, or something that does the same job, in to Rhino, as it is so VERY useful!!

10

Don’t think McNeel will add anything like this natively, as it’s a pretty specialized function. I would contact the author of the plug-in and see if there are updates available. It seems it was working for some people in V7, but maybe I’m mistaken about that.

An alternative to BoltGen is to download 3D CAD files directly from fastener suppliers like McMaster-Carr (US) or something like Bosshard (have to register but it’s free) - there are lots of other places to find CAD files.