[comecareper] Punzonatura su tubo

[bazzy]

I do not know if I am rusting given the poor use of if in recent months, but I do not know how to draw a punched funnel on a tube (see photo attached).
http://yfrog.com/j8dscn1916vjhttp://yfrog.com/7hdscn1917wujYou guys come without me?

 

[Marco74]

I think of 2 roads: one making the sheetmetal tube and then making the buttering on the flat sheet (with the folds), or in part with the surfaces.

 

[bazzy]

or in part with the surfaces.

I would propend for the second, I imagined it could somehow be with the surfaces.
The problem is I never use them! :frown:

what is the correct workflow?
(so I also army!!!)

 

[Marco74]

I don't use them much, at this point better if anyone knows more.

 

[Be_on_edge]

You can do it with loft protrusion.

the stages are:
- projection of a circle on the surface of the pipe (represents the base of the punching)
- 1-point sketch (presence the tip of the punching)
- creation of a loft protrusion with base the projected circle and somity the point of the sketch. in the options set to pass parallel to the point.(publishing in the table variables point parallelism)
- radiate the base of the protrusion
- Thick the pipe.

allego example
View attachment Tubo esempio.zip

ciao

 

[bazzy]

you can also do it with the protrusion of loft.cut

If not, I was thinking now:

(since I momentarily made a hole as reference)

-creus a cylinder from the plane to the circus ext
- I ran all the inside
-I'll pick the tip on the cylinder
-minimum surface thickness=spedssore tube...

destroyed but maybe it works. . .
First I try the surface away! :wink:

 

[Be_on_edge]

If not, I was thinking now:

(since I momentarily made a hole as reference)

-creus a cylinder from the plane to the circus ext
- I ran all the inside
-I'll pick the tip on the cylinder
-minimum surface thickness=spedssore tube...

destroyed but maybe it works. . .
First I try the surface away! :wink:

In my opinion you may have problems mating surfaces once you create the thickness.

If I had to approach it with the surfaces I would follow another path.

Hi.

 

[bazzy]

You can do it with loft protrusion.

the stages are:
- Cut.

...proven, punching is good, now the problem is that I can't thicken the surface.
even in your example is not often the internal part.

for now I solve with a "decorative" excavation, I tried to make an insert with offset, the silhouette of the surface does not seem editable (I can not cut it on the axis of rotation of the cut)

 

[Prima]

I think another system is:
- draw a round protusion of the diameter of the tube,
- draw the two punches on the outer part (or with revolution protusion or with a flat protution and then go to remodel with bevels and fittings )
- use the thin walls command to give thickness to our tube

 

[bazzy]

I think another system is:
- draw a round protusion of the diameter of the tube,
- draw the two punches on the outer part (or with revolution protusion or with a flat protution and then go to remodel with bevels and fittings )
- use the thin walls command to give thickness to our tube

...for now I'm satisfied with the surface+loft+I'm "decorative". If I could turn it off, it would be perfect.
next time I use your method instead, for today I seem to have lost time enough!!! :wink: