Hello
I have a flat "SPIRAL" piece with a spiral material removal.
And I would like to be able to pull on the center of my spiral vertically in order to get a kind of "spiral cone" like in the photo.
Is there a function to achieve this?
Thank you in advance.
In general, we start more from the finished part and then unfold it, for that see this tutorial:
https://www.lynkoa.com/contenu/r%C3%A9aliser-une-spire-pour-vis-darchim%C3%A8de-en-t%C3%B4lerie-0
m.legras : Impossible to open your part it crashes solidworks 2018...
Hello
I have that it is more complicated than expected.
I had started with the idea of a stamping function but it involves creating the tool in the shape of a spiral. From a solid sheet or your already cut sheet no idea of preference/feasibility.
Small note, for those who will follow this post, your spiral is made in a semi-arc, so the spiral function of sw will not be useful to us I think which does not make things easier for us.
Is your spiral imposed? or a real spiral is possible (radius proportional to the angle of rotation) but it means that your width will not be constant at 52mm.
To see the response of my co-forumers and the solution they will bring.
@sbadenis I made you a DWG that you will just have to add the thickness under SW. (I'm SW2019 didn't have a problem)
You will see, contrary to your tutorial, this sound of semicircles and not a "real" spiral.
It is not impossible that you have to review your conception of the spiral which should make things easier, as before, it depends on your requirements / needs.
Edit: to not create another answer.
It made me think of this (memory of Italy camping 30 years ago ^^):
Hello
A sweep on a conical spiral wouldn't do the trick?
Good evening
Sweeping with a spiral is not enough because you have to add a small part at the top.
If you wanted the perfect shape, it would be better to start with "Bossing/Smoothed Base" because on my model the landing at the top is a bit "poop-scum"
To achieve this with a sweep, you have to make a spiral cone downwards (upside down) so that you can make the flat part of the top.
However, for the MEP and for the cutting of the plate, the part must be made flat in a second body located on a second plane, unless my eminent colleagues tell us how to make the spiral plate flattened.
I haven't tried I must say ;-)
Kind regards
Top view
A bit lazy I didn't make a ZIP for the two images.
( NOoooooonnnn don't tap your head)
Kind regards
Hello
First of all, thank you for your answers.
Indeed, I will create a spiral from a semicircle, but it can be made from the SPIRAL function without any problem.
The idea is above all to be able to have a part "unfolded" in order to be able to send it to be cut on NC and to have a folded function more or less in line with the final result.
Hello again,
Here is a visual of the result I am looking to have.
From a square plate in which a spiral cut in machining would allow me to have this result by pulling on the central point:
Hello
The easiest way if it' s for LASER or CNC cutting is to start with a flat geometry.
The easiest way is to draw it according to the rules of geometric art according to the type of spiral you want to obtain. Depending on the number of centers and the number of 90°, 120° arcs etc.
Three-four, six-center spiral. see here
To help you determine what type of spiral you will adopt, you can project the unfolded edge onto a plane located above. Once your flat spiral is done, use the Bending function instead, which normally gives you something closer to reality than the function with a conical spiral that does not take into account the deformation of the metal (equivalent to the loss at the bend) when going flat to spiral shape.
Kind regards