Feature Request: Spiral Circular Pattern

[Uhlhorn]

Model Create Pattern Circular Pattern

It would be nice to get the possibility to set a slope for the circular pattern to make a spiral circular pattern.

 

[Scoox]

So how did you do that?

[Uhlhorn]

I did this in Rhino many years ago. 😉

Since I wrote this feature request I figured out how to solve this in Fusion 360:

Actual You can do this only with offsetting many layers and many sketches. It is a lot of work!

Here You can see how this can be make:

1. Make a basis sketch with the positions
2. Make an offset layer with the slope (e.g. 2 mm)
3. Make a sketch on the offset layer
4. Project the position of the rod to the offset sketch
5. Make a joint between the rod and the projected line.

In the screenshot I made it only for two rods as a proof of concept.

An alternative way would be using the transform tool. But it will not be logged in the history and it is not possible to use it parametrical.

(I hope my translation from german to english is correct. I am using the german version of Fusion. If not, please correct me.)

[adeskjunkie]

THERE IS A FREQUENT MISCONCEPTION BETWEEN "SPIRAL" AND "HELIX". THE IMAGE SHOWS A HELICAL PATTERN, AN YES, IT WOULD BE A JOY TO HAVE SUCH FUNCTIONALITY WITHIN FUSION.

[Uhlhorn]

„MISCONCEPTION“

No, it is a mistranslation! 😉 Thank You.

Is it possible to change the text?

I translated the german „Wendel“ into englisch. It’s a translator fail. 😞

[kevin]

This is the same thing I'm trying to solve. Is there anyway you could share the drawing with me so that I can try and learn from it

[adeskjunkie]

Hi Kevin,
The "Spiral Pattern" was not my idea originally. I merely pointed out that the model displayed was indeed a "Helical Pattern".
Please search for "Uhlhorn" who is the author of the original post.
adeshjunkie

[Uhlhorn]

„Is there anyway you could share the drawing with me so that I can try and learn from it“

You want to get the drawing from me? Is is correct?

Here You are: http://a360.co/2HL1gRX

🙂

[StephenCim-001]

MoI3d includes a 'Vertical Step' option to the circular pattern tool which would get the results you want, Maybe Autodesk could add both the vertical and Radial steps options 

[brendon.j.costa]

I also have this problem. Trying to cut holes in tube and later place items in those holes in a spiral/helical pattern as part of a vertical garden project.

I chose to redraw the CAD for my vertical garden (originally done in OpenSCAD) in Fusion 360 as it was reasonably simple and help me learn to use Fusion 360. I obviously chose the wrong thing to draw in Fusion 360 as it seems like it isn't possible (at least not parameterised in the same way).

I have found a lot of posts/comments on this missing feature on the web, youtube and these forums. None of the work-around solutions are particularly palatable though. 

A cut-down example of the OpenSCAD I was trying to reproduce looks like:

tube_height=1000;
tube_diameter=160;
tube_wall_thickness=4;

tube_hole_diameter=89;
tube_hole_angle=220;
tube_hole_spacing=75;
tube_bottom_space = 100;
tube_top_space = 200;

holes = (tube_height - tube_top_space - tube_bottom_space) / tube_hole_spacing;
difference()
{
 // Create the tube
 cylinder(d=tube_diameter, h=tube_height);
 translate([0,0,-1])
 cylinder(d=tube_diameter-2*tube_wall_thickness, h=tube_height+2);
 
 // Cut the holes out of the tube
 for (i = [0:holes])
 {
 this_hole_offset = i * tube_hole_spacing;
 this_hole_angle = (i * tube_hole_angle) % 360;
 
 translate([0, 0, tube_hole_diameter/2 + tube_bottom_space + this_hole_offset]) 
 rotate([90, 0, this_hole_angle]) 
 cylinder(d=tube_hole_diameter, h=tube_diameter);
 }
}

// Lets also place some cylinders in the holes (later replaced with pot planter objects)
for (i = [0:holes])
{
 this_hole_offset = i * tube_hole_spacing;
 this_hole_angle = (i * tube_hole_angle) % 360;
 
 translate([0, 0, tube_hole_diameter/2 + tube_bottom_space + this_hole_offset]) 
 rotate([90, 0, this_hole_angle]) 
 cylinder(d=tube_hole_diameter-2, h=tube_diameter);
}

[Uhlhorn]

There is a „slope“ value missing in the circular pattern:

(„Steigung“ = „slope“)

(Translation: This field is missing!)