Hello
Still in my propeller, I managed to smooth it out in surfacing (thank you gt22).
On the other hand I have another problem, I can't smooth it properly because the profile is open at the trailing edge yet I closed it in its sketch so it does this to me:
When I zoom in, you can see that the part is not closed but the sketch is closed but made by me, the txt file is open in the database where I got it:
I think the problem comes from there.
diiity
sorry for the spelling mistake , "I think the problem comes from there"
diiity
Good evening
The pb comes from the left and right guide line which are not connected (put a constraint) to sketch N°2. Once the constraint is placed, the smoothing is done correctly. On the other hand, you have to convert the entity into a selection, the axis into a construction line of sketch 2. Otherwise your guide line is not fixed (no constraint your line remains in blue).
A nice remark , the two smooths Surface-Smoothing 1 and Surface-Smoothing 2 don't fit well. It's not clean at all, your two new 3D4 guide lines need to be tangent to the 3D5 and 3D6 guide lines. Once the tangency is tangential, make the connection and cleaner.
I recommend that you put one or two intermediate profiles between Smoothing Surface 1 and Boss-Extrud.3 Your curvature is too strong to do with only a start and end sketch, which is why you don't master the shape. Your guide line on the right (on the leading edge side) looks funny as if it were too curved.
Off-topic (well, almost)
On the other hand, it's the first time I've seen a propeller that looks more like a wing winglet than an airplane propeller. But hey :-)
Good evening
I don't really understand what you're writing, it's certainly not easy to put it in text.
Could you take screenshots for me?
As for intermediate profiles, I hadn't thought about it.
To do this, I have to make intermediate shots following the requested curve but how?
For the propeller, yes it's a bit weird but it's a folding propeller, the profile is that of the clark Y, the position and the chord of each profile are calculated by a dedicated software.
diiity
your surface smoothing is not firm
Your trailing edge is empty of surface all along your kite
See attached image
Profile adjustment or selection problem
Have you selected the entire sketches
@+
Here are the explanations in pictures for the sketch numbers, refer to the creation tree
IMAGE 1
Kind regards
Here are the explanations in pictures for the sketch numbers, refer to the creation tree
IMAGE 2
Kind regards
Here are the explanations in pictures for the sketch numbers of my first explanation, refer to the creation tree
IMAGE 3
Don't forget to make the tangency between the top and bottom splines
Kind regards
Hello again,
Nothing to do, it doesn't work, I don't understand.
I'm not a pro, far from it, but I think that until I close the sketches properly, it won't work.
I constrained like this:
If not, did you two manage to do something clean?
diiity
Yes, it seems to me that I did everything clean and that's what I used to answer you.
Post again (but the latest version) I'll look at what's wrong
By the way! which version of SW do you have???
@ diiity
Can you attach the image instead of posting it on the forum because you don't see much otherwise.
Kind regards
Hello
I draw in 2013 but I also have 2018 to be able to read all the versions.
I just noticed that the trailing edge doesn't completely follow the guide curve.
It follows this curve only from the bottom (lower surface) and the upper (upper surface) is outside.
I'm looking at and editing your file.
There is already an error in the first smoothing because your surface does not join, it remains open, which does not facilitate the subsequent smoothing.
The other errors I pointed out to you have not been corrected.
I'm trying to give you the complete profile up to the heel because it will be easier than explaining ;-)
Plush
Okay, there you have it!
I'll get back to you for the explanations
Basically, you should modify the trailing edge as I did by removing the small right end at the trailing edge (it's 0.01 mm and SW doesn't like it.
There are a lot of things that are wrong, we should start from scratch.
we can talk about it. :-)
A+
it seems to me already 3 days ago
that I told you that the surface of the trailing edge was missing see attached image
in my previous post
I don't understand why we try to continue without taking into account the words of each other
a little sad and sad ;-(
;:-)
gt22, that was the starting question, first post, and I said:
"On the other hand I have another problem, I can't smooth it properly because the profile is open at the trailing edge yet I closed it in its sketch so it does this to me",
I tried to close it by using a vector software, but when imported it didn't work, I didn't understand anything.
I had closed it vertically by 2 points from the trailing edge, maybe that's why it doesn't work.
I finally managed to close it by extending the 2 points in their tangent but I haven't tried the import into SW yet, which I'll do during the day.
Thanks Zozo, I'm looking at this during the day but after importing my closed profile as told to GT22
Hello GT22
We have to be indulgent for two reasons: @diiity tell us that he is not a super SW champion and secondly I find that smoothing is not an easy function to master until you have fully understood or mastered the guiding lines. It took me quite a while to understand the rules and limits without being a horticulturist.
The other point that does not seem to be fully mastered are the shots that must be able to be positioned anywhere and in any orientation.
That's why I added as an example the missing shots in the lower part where the profile is not finished.
@diiity I don't understand why, when you have the perfect curves with the sharp trailing edge (essential to have a good smoothness), you remade sketches which: not the same orientation. In your sketches, the spline in one piece (because it comes from .txt files) and therefore not modifiable creates unnecessary problems for you. Nothing is dimensioned in your sketches, so even if the calculated profile is accurate, you can't control the length of each sketch.
The best way is to turn your sketches into independent blocks and then rebuild your entire propeller in a new document that uses only blocks.
As the blocks are dimensionally stable, you can be sure to position your profiles correctly regardless of their orientation and position on the different planes.
The attachment shows how to make the profile with blocks. (I did it quickly, we can do better)
Kind regards
Look at my last piece, everything is explained as an example, especially on how to close the profile.