design radial compressor

[dandee]

Hello everyone,
I introduce myself: they are daniele and I write from Padova.
I hope I'm writing on the right place, otherwise I'm sorry I have no problem changing.
I just entered the world of 3d design and would need your help on a rock from which I can't get out.
premetto that I am using autocad2010 and I have acquired a good dexterity with the commands having fequentato also a course on the 3d.
I did a search between the various discussions but I found nothing that could help me.

I have to design a radial compressor (or radial turbine or turbocharger as you like) but I can't get out of it.

It seems that the right way is to use the loft tool because there is no extruder/ruote (at least I think) but after drawing the two faces I can not give a curved trajectory but only a straight one.
I managed to create something but it's not exactly what I want. I'll get you a couple of files.

I will be grateful if you can help me

♪

 

[Ezio Olivato]

is it true that the extruded/ruota command is not there, but could you try with extrusion/trajectory?

 

[dandee]

is it true that the extruded/ruota command is not there, but could you try with extrusion/trajectory?

I tried but I don't know why it only extrudes me if the trajectory is a straight one. if instead it is a polylinea with a straight sloped part and a curve I don't know why it doesn't.... I tried also with guides but nothing. Tell me that objects must be on the same floor...?!?? ! ! ?
I find the file and share it so maybe you find where I'm wrong

 

[Ezio Olivato]

you could build the separate linear part, and then join it with that curve?! It's an attempt... !

 

[lattu]

with the loft is very feasible
after modeling the central body, it is enough to create the upper and lower sections with 2 slightly protruding polylines compared to the block, join them with the loft and remove the excess part with the boolean and finally apply the bevel fittings.
the slats are of 2 types therefore they must be built both and then copied in series regarding the central axis. all must be combined as one solid

 

[dandee]

thank you lattu.
So, I managed partly but not as well as the file you bring me back.
Let me understand: you drew the lower and upper sections and then gave loft...but you gave a trajectory, guides... what?
in the drawing that brings me the slats arrive straight at the end while I need a fold (see the first attachment)

I started from two sections, an internal and an external connected by two guides, a superior and a lower but I still do not reach the form I want.
then for other operations there are no problems (polar series, boolean, bevels etc.). the problem is to draw the slats.

thanks for the help

♪

 

[lattu]

thank you lattu.
So, I managed partly but not as well as the file you bring me back.
Let me understand: you drew the lower and upper sections and then gave loft...but you gave a trajectory, guides... what?

after drawing the two sections and having placed them correctly I did the loft setting "normal to all cross sections"

in the drawing that brings me the slats arrive straight at the end while I need a fold (see the first attachment)

you are right, just rotate the upper section along its central axis to get the desired fold (later I try)

I started from two sections, an internal and an external connected by two guides, a superior and a lower but I still do not reach the form I want.

I don't understand what you mean by guides. the loft connects the sections in sequence, without needing guides or other.. .

then for other operations there are no problems (polar series, boolean, bevels etc.). the problem is to draw the slats.
thanks for the help
♪

good continued

 

[dandee]

I did the loft setting "normal to all cross sections"

legendary! :finger: this is what I was running away....and say it was so easy to handle!!! :tongue:

I don't understand what you mean by guides. the loft connects the sections in sequence, without needing guides or other.. .
good continued

Sorry... I wanted to say trajectory!
later I try and then share the image.

thanks and good holidays to all!

♪

 

[dandee]

Here, I should get something like that...(see attachment).
be clear. I found this on the net.

I'll do some evidence.

 

[lattu]

I hope that's what you meant. .

 

[dandee]

Good evening.
I'm always busy with my radial compressor.
Now I have this problem: I have changed posting and pc and if I try to make loft - normal to all sections, without setting trajectories and guides I get out this thing here.....
should exit such a wing represented in the above attachments

How the hell did you do that? Do I have any arrangements to settle?

I thank warmly those who can help me.

Thanks

♪

 

[lattu]

I set a rotation of about 45° to the upper section along its central axis

 

[dandee]

....nothing... I tried to do as you say but look at what goes out...? ? What's wrong? ?

Thank you.

 

[lattu]

I attach my file so you look at it in detail. I don't have time to explain anything to you.

 

[dandee]

Lattu,

thanks for the file. I slew on it a long time but I can't understand why if I praise the sections that you designed you come out the correct wing, while if I do it on your same file I leave something without a lie....

Tell me what please because I can't get there.
then for the rest it is ok, I made series 3d and subtracted cn boolean and comes out a show! !

Thank you.

 

[lattu]

I think it depends on a loft command setting.
But now I can't verify how I set them up

 

[dandee]

then: I think I have unveiled the ark!

or: if you want to loft the two surfaces, they will not have to have a squeezing angle greater than 30/35°. Otherwise it is necessary to consider n. sections to reduce the angle.

I attach a drawing from me. It's a draft, the next one will be better. the fins are not exactly well defined as the angle between the two sections is greater than 40°.

I also attach another file with a wanted realized with 6 sections of 30°.

At the end I think it is possible to do the same with the sweep function by drawing the trajectory with the spring function.

I finish my drawing and then place to conclude this discussion.

Thank you

♪

 

[dandee]

...and dulcis infundo, here is the result of long months of puzzle!

♪

 

[lattu]

Well, it took a bit of time but you finally managed to shape it as you wanted.