drawing hexagonal screw heads and nuts

[999]

Hello.
I attend the first year of mechanical engineering, and I have to draw three types of connection (delaying screw, prisoner and bolt) through autocad. There would be nothing difficult, but I have some understanding about the construction of the hexagonal dice and therefore of the head of the screws in the side view. on the text there are some proportions that indicate for example one of the bevel rays like 3/4 and, that is, like 3/4 of the maximum width in the nut, but always comes a very high value. and for the other bevel that values should I use?
Could someone explain to me how to do it or maybe tell me where I'm wrong?
Thank you.
ps: I attach image of the text where the proportions are located.

 

[radio]

.... .
on the text there are some proportions that indicate for example one of the bevel rays like 3/4 and, that is, like 3/4 of the maximum width in the nut
....

the measurements that you mention are not bevelous quotas, but the radius of the edge measured on the face, resulting from the processing of spherical turning ~ as from attached image.

n.b. It is advisable to upload images directly to the site that does not link images to external sites, which in the future may be no longer available resulting in loss of comprensibility of the discussion.

Hello and welcome.

 

[stefanobruno]

It doesn't seem so unclear, I think it's wrong.
Look at my file and you'll see that it's spinning.

But does that really start?
I'm worried.

:biggrin:

 

[999]

But does that really start?
I'm worried.

:biggrin:

First of all, I want to thank you for the celerity of your answers and for clarifying my doubt, so thank you.
But I read a bit of "acidity" in the commentary of stefanobruno. Of course it is not my intention to create "flame", and I also realize that maybe I asked something that is very trivial in the eyes of who maybe does the designer for years or is of the profession, but if I hear them answer a simple question with "but really you start so? I'm worried" I feel taken directly into question.
Now I will not be a mind, a designer born, but I began to deal with autocad and everything that concerns the technical design for a very short time, considering and considering that before I dealt with other, let's put it so.
I think, as stefanobruno says, of having to feel concerned, and I know, especially in virtue of the challenging path I have decided to undertake, but I do not allow myself to make certain statements, especially considering that we do not know each other personally.
Then maybe I'm wrong and it wasn't a criticism of me, and I apologize a priori, but that felt like I said.

return ot I thank again for the design and for the answers. I will see to understand where I was wrong, and eventually I will take advantage of your kindness.

 

[stefanobruno]

but I read a little "acidity" in the comment of stefanobruno

It's not acidity, I've never had a chance to see the beginning of the path leading to an engineering degree and I'm surprised that you start or step by a "problem" like this.
it would be the case of studying and understanding the views, which should be associated already in the previous school cycle, and not to spend a little time knowing that the arc that represents the processing in the head of the dice is 3/4 of the quota a and, in the other view, 1/2 a.
and I'll stop here.

Bye.

 

[Joensow]

I have never considered the connection of the heads of the dice.....anceh because being commercial...it doesn't need much specific modeling.......however support stefano bruno....the new orders should be deleted....

Have a good day.