inventor 2010 - threads

[vale79]

Hi.
I have to do an internal thread diameter 40 mm, 19 threads per inch (p=1,33), how do I do? I don't know what kind of filet it is, maybe withworth... Do you have an idea?
otherwise you can create in inventor a new type of thread and then apply it?
Thank you.
That's right.

 

[Tarkus]

Hi.
I have to do an internal thread diameter 40 mm, 19 threads per inch (p=1,33), how do I do? I don't know what kind of filet it is, maybe withworth... Do you have an idea?
otherwise you can create in inventor a new type of thread and then apply it?
Thank you.
That's right.

40 mm safe?
It's too unusual.
but 40 mm to what do they refer to?
is it a diameter imposed by some specification? or maybe at the threaded hole ø int that you might be measuring on a piece?
or it was made wider... give us some extra indication.

 

[vale79]

was an example; I want when quoting to write me diameter and pitch, but I don't know what kind of thread is. I explain better: I have a threaded real piece, I'm drawing a screwing needle but I don't know the shape of the thread of the piece, so I'm trying to find out to try to make the same thread (naturally internal) on the nail. I hope I gave you some extra indication.
outer diameter of the threaded piece = 39.8 mm
inner diameter of the wreath =38,55 mm: This xò wreath does not screw, it is m40x1.5, I have to find the right thread.

Thank you very much
That's right.

 

[Tarkus]

was an example; I want when quoting to write me diameter and pitch, but I don't know what kind of thread is. I explain better: I have a threaded real piece, I'm drawing a screwing needle but I don't know the shape of the thread of the piece, so I'm trying to find out to try to make the same thread (naturally internal) on the nail. I hope I gave you some extra indication.
outer diameter of the threaded piece = 39.8 mm
inner diameter of the wreath =38,55 mm: This xò wreath does not screw, it is m40x1.5, I have to find the right thread.

Thank you very much
That's right.

I mean, you're telling me that the 40x1.5 wreath is not screwed to your threaded piece and that the outer diameter is 39.8...so the outside translated into inches could be 25/16" and the thread, rightly, 19 threads/". :smile:
But I think it's an arbitrary thread, or at least not in the "filettatura" feature of inventor.
So I think you have to make it.
I never did, but try to take a look at what the guide says.
inv:

"If necessary, you can add custom thread types and definitions. by default, a spreadsheet for threads is found in the following paths:

microsoft windows xp: autodesk inventor programs [versione] design date.

microsoft view: users public documents autodesk inventor [versione] design date.

to create tapered threads, use the tapered thread type. the thread data calculation sheet contains a specific npt (national pipe threads, threads for national pipes). "

 

[vale79]

Thank you so much that was exactly what I wanted to know. I eventually create a new thread if I can, it seems very strange xo' that those who threaded the piece use abnormal threads.
we have the piece, we measured the outside and it's the value I wrote before, we drew the wreath and threaded it with the default metric thread, and turns out m40x4,5. But the thread of the piece is seen that it has a more fine step so we simply chose step 1.5, xo' the realized wreath does not screw. Before making a thread, I'd like to see if it's already done and normalized, otherwise I should go to attempts x each thread parameter, it's absurd.
Thank you very much
That's right.

 

[stefanobruno]

Can't you bring the piece under a profile projector and measure it?

Bye.

 

[vale79]

Ooooohhhhhhhh!!!! I'm afraid not... I also knew there were profile projectors . We decided that it was a m40x1.5, we didn't even equip ourselves with a booklet, maybe it's a step 1, or 1.25 if it exists. Maybe it was enough to send the piece to the lather who made the wreath so he controlled it, it's just that we noticed the mistake tonight. Maybe we can know the thread from who did the male piece. then it remains only to quote as diameter - step, this should do it by itself inventor, right?
Thanks again
That's right.

 

[stefanobruno]

This should do it by itself inventor, right?

Yes, or write it by editing the quota.

Bye.

 

[vale79]

Okay, thank you. Now I try to file a male d 39.8 and see what he says.
Hi.
That's right.

 

[vale79]

we found the drawing of the piece and there is written 19 threads per inch, it is a rather common thread type in the tap, you know how it is called or the features? so I can create a new style.
Thank you.
Hi.
That's right.

 

[Tarkus]

we found the drawing of the piece and there is written 19 threads per inch, it is a rather common thread type in the tap, you know how it is called or the features? so I can create a new style.
Thank you.
Hi.
That's right.

I don't know any rules that carry 19 threads/inches on a diameter similar to what you indicated.
I can think that the manufacturer of the piece,almost definitely anglossassone, has simply considered it suitable for that application,"19 threads per inch".However:
has a step like you know, of 1,337 mm,
an inclination like all whitwhort steps of 55°
so a pre-forum of ø - 2*depending of thread = (ø-2* 1.337 * cos55° or 2*0.762 .
I'd be curious to know what's on the drawing about the actual diameter. ...

 

[vale79]

I don't know, I didn't see it, but I think something like that from what my boss told me, d40 (or 39.8) - 19 threads x thumb.
But there's no thread withworth in inventor?
Thanks again
Hi.
That's right.

 

[Tarkus]

I don't know, I didn't see it, but I think something like that from what my boss told me, d40 (or 39.8) - 19 threads x thumb.
But there's no thread withworth in inventor?
Thanks again
Hi.
That's right.

Yes, there is.
e.g.
Bsp tube thread is in withworth, but that's not the problem:
inventor does not assign you (or at least I do not know how to do) threads not provided by the standard for that diameter, i.e. if you want to make a thread hole m40 x1.25, it is not contemplated in the dialog box of threaded holes or threads.
So as I told you, you have to add that step to the standard where you want to use it or create your own standard.
I also add that maybe the way to insert a thread on a ø to please is, but I don't know it; but I think if there was anything easier.........

 

[vale79]

Hello dear
Okay, I think I get it.
The only dubbo I have left is on the diameter, as you said, xke' la withworth is listed in thumbs. could be 1“11/16, approaching 39.8. Yeah, it would be convenient to fill in, but goodbye unification... it's useful, think if they had threaded in metrics, step 1.5 how much time and money we would have saved! .
gracious and good day!
That's right.

 

[maxopus]

It's close to 1 inch and 1/4 gas.
This format includes an external diamyster of 41,91 mm, average of 40,43 and on the hazelnut of 38,95 mm but has 11 steps per inch (2,309 mm).

 

[vale79]

Bye!
excuse ignorance but 1”1/4 g does not assume that the thread is gas and not withworth? The gas has no choice of step, right? and I have to fill the wreath with 19 threads x inch, otherwise it does not screw to the piece. the problem is this, that the piece exists and has its original wreaths on the market, to us xo' needs a wreath with the same interior and the external part (that aesthetic) different, for example square instead than round for example.
Hi.
That's right.

 

[maxopus]

even whitworth does not match the characteristics you indicated.
in the table uni 2709 and in the standard british the number of threads per inch does not correspond (from 7 to 9).

According to me it is a custom thread that has no correspondence with the threads provided by these norms.

 

[vale79]

!!! it would be a disaster. I hope it is a special step withworth, as it could be our m40x1.25. My boss says it's a pretty common thread, but you don't remember which one.
That's right.

 

[sampom]

Bye!
excuse ignorance but 1”1/4 g does not assume that the thread is gas and not withworth? The gas has no choice of step, right? and I have to fill the wreath with 19 threads x inch, otherwise it does not screw to the piece. the problem is this, that the piece exists and has its original wreaths on the market, to us xo' needs a wreath with the same interior and the external part (that aesthetic) different, for example square instead than round for example.
Hi.
That's right.

if you have the original pieces "in hand" you should hand them both to the turning machine (in addition to the drawing), which will make the measurements of the case and will be able to reproduce all the threads you want, standard and not.

greetings
Mar

 

[vale79]

That's what we'll do, if we find out more features, we'll update the table if we need it again.
Thanks again
That's right.