Lattice workbench [updated Polar Array]

[DeepSOIC]

And how does that cope with the single solid limitation?

There is a property that switches the enforcement on and off. Off by default.

[triplus]

And how does that cope with the single solid limitation?

There is a property that switches the enforcement on and off. Off by default.

I guess we still have some work to do in figuring this out. Having a restriction that could end up being important in the future. But on the other hand doesn't make much sense and it isn't respected ATM.

[chrili_rakete]

Hello,

first of all I want to thank you for the development of the lattice workbench – it seems to be just what I was looking for right at the moment. I am not sure that this thread here is the right place to post my question, please apologize if not:

Sketch driven placements via the <Array from shape> command seem to be the most convenient approach for my purposes […, Orient mode: child.Edge, Translate mode: child.Vertex, Compound Traversal: Recursive, …]

If my sketch consists of two lines, the result are two placements – as long as these two lines (edges) do not share one of their vertexes. Then they effect just one placement. I attached a file where the left side of the drawing shows this, whereas the right side illustrates the result I would like to achieve:

Lattice2_Array_from_Shape.fcstd

(12.71 KiB) Downloaded 81 times

I suppose that the geometrical identity of two vertexes of two edges makes them a one-entity "wire" as a "direct child" of the driving sketch. That's why I changed the property <Compound Traversal> from <Direct children only> to <Recursive> – but this had no effect …

Is there a solution or a different approach in lattice2 or do I have to adapt my sketches?

Thank you!
--
Christoph

OS: Ubuntu 18.04 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.13964 (Git)
Build type: None
Branch: master
Hash: 548511ac30cd07328db60169f854d08975adf047
Python version: 2.7.15rc1
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: German/Austria (de_AT)

[DeepSOIC]

I suppose that the geometrical identity of two vertexes of two edges makes them a one-entity "wire" as a "direct child" of the driving sketch.

Yes.
Info tool reports:

Code: Select all

Selected document object:
  Name = Sketch
  Label = Sketch
  Is placement/array = False
Structure: 
Compound (5 objects):
    Wire (4 segments)
    Wire (1 segments)
    Wire (1 segments)
    Wire (1 segments)
    Wire (1 segments)

Compound traversal will not make Lattice look into wires for edges. It affects how nested compounds are processed. But yours is a flat one. It will be useful for example if you Part Compound two sketches.

To deal with your problem, downgrade your sketch to edges, amd make the array from the downgrade.

Code: Select all

Selected document object:
  Name = Downgrade
  Label = Edges of Sketch
  Is placement/array = False
Structure: 
Compound (8 objects):
    Edge (<Line object>)
    Edge (<Line object>)
    Edge (<Line object>)
    Edge (<Line object>)
    Edge (<Line object>)
    Edge (<Line object>)
    Edge (<Line object>)
    Edge (<Line object>)

lattice2-array-from-dhape-downgrade.FCStd

(15.64 KiB) Downloaded 77 times

[chrili_rakete]

To deal with your problem, downgrade your sketch to edges, amd make the array from the downgrade.

Perfect, so easy! I appreciate that very much – thank you!

[DeepSOIC]

New tutorial!
https://github.com/DeepSOIC/Lattice2/wi ... n-Tutorial

[triplus]

One thing i guess is to invade PartDesign with Lattice. And another thing i guess is a tutorial on how exactly to do that.

Thanks!

[DeepSOIC]

Polar array was updated.

* it is now attachable
* array on arc of circle
* new orientation modes and possibility to switch axis directions
* array direction reversal
* dropdown commands with fit presets (like linear array)

polar-array-v2.png (115.65 KiB) Viewed 3430 times

[triplus]

Polar array was updated.

Don't have much time to test ATM. But i am guessing PartDesign workflow invasion is included?

[Vincent B]

Is Paraseries can handle ShapeString? I can't success to modify the string with it.