I have a sketch on the front plane like the one in the attached image. I want to rotate with various angles the four half circles (see the picture) about the axes AB, BC, CD and DA, respectively, in the 3D space, not the front plane. How can I do it?
This seems to be best way. Must be 3D Sketch and you can use the Rotate command same as sketch, except its called "3D Rotate" can use a line as reference and give rotation angle
I'm not real clear on what you're trying to do. Do you want to create spheres? If yes, you can do multiple Revolve features.
Robert Werner wrote:
I have a sketch on the front plane like the one in the attached image. I want to rotate with various angles the four half circles (see the picture) about the axes AB, BC, CD and DA, respectively, in the 3D space, not the front plane. How can I do it?
I think you could create the sphere surface as Glenn Schroeder suggested and then create planes at various angles. Therefore create lines by intersecting spheres with planes. If you need the lines as sketches, then you have to create sketches on the intersection planes and convert surface edges to sketch arches using 'convert entities'.
It takes some time.
I do not want to create spheres. Most of the people understood what I wanted except Glenn Schroeder. I simply want to rotate a 2D object about an axis with a number of degrees but leave it 2D. I do not want to transform it into a 3D entity. I will try your proposals and see which one is more simple.
Each one of the 4 arcs will have to be on a separate plane and then control that plane for rotation.
Steve C
Robert Werner wrote:
I have a sketch on the front plane like the one in the attached image. I want to rotate with various angles the four half circles (see the picture) about the axes AB, BC, CD and DA, respectively, in the 3D space, not the front plane. How can I do it?
You want to rotate the 2D object just for viewing or you really want to physically rotate the 2D object with diff. angle?
For the first choice (viewing), you can use this tool
I do not want to rotate a 2D object for viewing. I want to physically rotate it.
Do you want to revolve each contour around each axis?
Just a sketch and a revolve
Can you supply additional information about your true Design Intent?
Perhaps an image or link to something similar that already exists in the real world (or is this an entirely new design never seen by man, woman or beast before)?
My first thought is Sketch Block.
Hi Robert
My best guess is you are looking for something like this?
In many ways you can treat surfaces as sketches - but it's easier to move them around any where you want with body-moves / rotates etc...
How would you like to control it? Vanilla flavour direct edits are sometimes only possible by editing the feature... but you can set up other reference geometry to drive them.
Rob Edwards wrote:
Hi Robert
My best guess is you are looking for something like this?
Guessing is all any of us can do until the OP replies back with more information.
Glenn Schroeder wrote:
Guessing is all any of us can do until the OP replies back with more information.
Yes I didn't want to miss out on the fun!
It's a bit like charades!
Rob Edwards wrote:
Hi Robert
My best guess is you are looking for something like this?
In many ways you can treat surfaces as sketches - but it's easier to move them around any where you want with body-moves / rotates etc...
How would you like to control it? Vanilla flavour direct edits are sometimes only possible by editing the feature... but you can set up other reference geometry to drive them.
Now that's cool! It didn't occur to me to use surfaces as sketch substitutes for moves and rotates. That would be easier.
It's amazing how often I find something here that I should have thought of myself years ago!
Hi Tony
Do you wanna know the real 'magic'
You can apply multiple independent surface trims and suppress them all individually without issue.
A sketch on the face with convert entities will update without problem..
which means you can do stuff like this..
Yes, Rob Edwards, this is exactely what I am looking for.
If I understand what you're trying to do, it seems to me that just making a 3D sketch and adding a 3D Sketch Plane for each entity you want to rotate.
This.
This was the first thing I thought of doing. Off the top of my head I'm not sure if there's any benefits to doing what I've done, when you could do it in a 3d sketch. It might be easier to control the angles of the planes in the future with this though.
On a side note, the number of negative comments in this thread is astounding.
It would be nice if I could draw that half circle one time and then do a circular pattern with four copies. If the half circle is a tube (3D object) I know how to do it but like this, a 2D entity, I do not know.
Robert Werner wrote:
It would be nice if I could draw that half circle one time and then do a circular pattern with four copies. If the half circle is a tube (3D object) I know how to do it but like this, a 2D entity, I do not know.
Not what you want but a fun way to do something similar to what you want using patterned spheres and intersection curve
Another fun way using revolves to dictate the angle
I suspect you'll have to do a 3d sketch. I wish I could be more certain but I haven't used them much myself.
The alternative is to create new planes offset from the top and right planes and create your sketch elements on those planes.