elliptical section holes on curved surface

[sh4d3]

hello to all, as from title I should practice elliptical section holes (or however with sketcher profile) on a spherical cap section. should be placed radially compared to that curved surface. Could you write me the steps sequence? I can't find anything even in the ptc tutorials... :

thank you all.. .

 

[sh4d3]

I solved, more or less, or thanks anyway to all.

 

[tartufon80]

Bye!

"....... is good creation............. once found, bring back the solution adopted in order to help those who might find the same problem. "

Thank you! :wink:

 

[sh4d3]

Hi, you're right, I thought about it last night while I was sleeping!
I would have brought her back today just out of the lab.
Anyway:

1. I defined a sloping plane, about tangent (eye) with the central point of the elliptical hole that I wanted to practice: fortunately I had a reference edge (plan) and a plan to be able to define the sloped plane
2. on that floor I then drew the sketch of the ellipse
3. Finally I extruded (short material) of a depth so as to wash the surface of interest (I think it was well also setting the extrusion up to the first met surface, or to the selected one, I did not test)

If the hole is not in the desired position, just move the sketch, and we regenerate:

I leave you a screen of the result, maybe you understand better.
(I do not indicate which of the 3 holes is the one referred to in the object :biggrin

 

[tartufon80]

Hi, you're right, I thought about it last night while I was sleeping!
I would have brought her back today just out of the lab.

no problem, it's just that in this way the forum grows in useful content!

comunque:

1. I defined a sloped plane, about tangent (by eye) with the central point of the elliptical hole that I wanted to practice: fortunately I had a reference edge (plan) and a plan to be able to define the sloped plane
2. on that floor I then drew the sketch of the ellipse
3. Finally I extruded (short material) of a depth so as to wash the surface of interest (I think it was good even setting the extrusion to the first met surface, or to the selected one, I did not test)

If the hole is not in the desired position, just move the sketch, and we regenerate:

I leave you a screen of the result, maybe you understand better.
(I do not indicate which of the 3 holes is the one referred to in the object :biggrin

Let me ask you if you have a parametric modeling base, or you're going for attempts.
Have you ever followed any tutorials?
If you look for something on the net you should find.

the phrases that I have highlighted to you cozzano with a good modeling, and with good I mean a stable and precise modeling.
about tangent: someone will ask you one day piss Just tangent! (not about)
Fortunately I had: if you don't have it, you do it, as you want and as you need it.
I think it was good.... there's only one way to find out! :wink:

 

[sh4d3]

It's a rhetorical question, isn't it? :d I specified from the first post that before the thesis I had never put my hands on a modeling program cad :d so no, I have no basis.
I was also 4 days without sleeping to try to find something similar to what I should have done on the net, but I did not find anything (it is also possible that I did not look good, but I assure you that I took several hours. I watched all the videotutorial of the ptc and various on proes and I create 2 and 3 of various other passionate users.. In addition to searching here on the forum :d). So yes, I went for attempts, compared to the little I found. for what I understood there was no way to define a tangent plane at one point, on a curved surface... like the can that served me and that I attached. I don't even think it's trivial to define the references to be able to create ad-hoc.
'about tangent' yes, because having been defined by rotation and not by specific function (which I did not find, surely there will be some other tricks but for those who are at first arms and has not yet entered the caddist mentality is difficult to think about) is not exactly tangent (and if it were however luck and not for precision): How would I call him? :

Forgive little clarity. . I am new in this world, I have tried to be as clear as possible with regard to me:
I hope it was only useful to someone, and if the more experienced of me understood what I meant to say can quietly interpret and repost my unclear phrases
for the rest I did not try because the result achieved for me was enough and I do not have too much time: in the lab there have arisen so many problems in recent days, without counting that I have a project to be delivered again and a thesis to finish, with still several tests to carry out, with the degree at the end of March and the delivery thesis in about 3 weeks :d
the intention is to continue to learn something cad even after graduation, surely you will be able to serve and in any case would interest me. as soon as I have a free moment I try to explore some new function.

thanks for the availability and excuse the long 'explaination' :d
have a good day

 

[tartufon80]

first of all in good luck for the thesis and the following.

It wasn't my criticism!
4 days without sleep do not need, so nothing changes.
instead the hours lost (according to me) to look for something similar on the net, you could use them to read some tutorials.
attention: I do not intend to watch videos (also useful ones) but to operate in person with cad.
Have you tried to look for the "Ray Plan" guide?

 

[sh4d3]

bhé even if it had been critics can also be constructive
Thanks for the thesis.
...to tell the truth in addition to the tutorials I always 'experienced' of mine. do you mean here on the forum? or creo's? :