Where is the best thread making video featuring correct method?

[lander (CAD CAM CNC)]

@lander

@Steve1

Must remember Rhino is NOT A SOLID MODELLER.

Everything is relative. And for any given phenomena there are infinitely many interpretations.

I think part of the implication here is I might not have needed to use “solid” entities for the boolean:

How to model a nut no videos anywhere

15:40 if you flip the curve direction used for the revolve, the surface can be used for a boolean difference because the normal points away from the nut…

I’m not 100% sure.

Mostly the effect of making it solid, will alter the normals of the surface (outward) so the boolean will work. But his point is that if I flip the normals instead, it will probably work without being solidified…

I’ve just never exploited this knowledge yet, because I usually used ‘solids’ in my workflow. I do plan to test this new procedure (to me) in my techniques to find out if I understand it correctly.

I guess I don’t pay enough attention to the normals as much as I thought I did.

At 16:50 I did boolean without cone being solid so I guess that proves it doesn’t need solid:

V1 (edited) draft: nut w/ "screw" threads in Rhino 7

Alot of my knowledge in Rhino is still subconscious, so it’s interesting to explicate that into the conscious and reinforce what I think I know into what I know I know

Just need to refine my technique and pay attention to them ‘normals’ more

Did better the second time at 19:16 weew! and again at 23:25 lol so 100% sure booleans don’t need solid. Glad that’s no longer subconscious! And learned more about ‘normals’

So funny at 35 min my brain went ‘derp solid?’

I should have studied this other thread sooner :

@Steve1

I didnt think Boolean Difference worked except on solids but it did, so something else learned.

me too

There’s many examples of GH version technology out there and already mentioned. Here’s an example:

Helical With Components

[Capture] DoTheTwist.gh (7.9 KB)

Yes, ‘helix’ is key for threads. Maybe someday GH will make a component and easier.

24 days ago you almost made it seem like you were done with this part “in 10 min”:

@Steve1

I measured my nut and created it in 10 mins using steps I mentioned, (not inc the thread)

My nut is not a standard one in a book, not that I know of anyway.

This is for me a sledgehammer to crack a nut !

Guess you still need threads and you didn’t study my vid or any other vid well enough to learn about helixes to make threads?

This will be key for the future and automating this matter:

@lander

Seriously though, where’s GH’s ‘helix’ component? lol

@Brenda

I needed a spiral tool for threading.

Going further, I guess that it could be made into a custom component. Sorry, it’s just helicals, until I need to make a fusee.

time for spiral component.

is there no component for spirals? ty

‘Helical interpolation’ is key for CNC milling threads with a thread cutter – fwiw. You could technically follow any curve really… and make custom entrances and exits. It all depends on CNC toolpath techniques, thread cutter geometry, and GD&T’s.

3D printers are still (basically) 2.5D machines, so the thread geometry will probably have to be compensating for several emergent properties of such a characteristical process, etc.

5 min later. Okay so I’ve been doing some more review, and yes there’s still not very many good videos on thread making (specifically in Rhino).

But here’s one I haven’t seen yet fwiw: https://youtu.be/gWtbbXFpE0k?si=D2bYXDt_vpqnLgjs
Well maybe I’ve seen it once lol.