Create mesh from shape... std::bad_alloc

[ooveif9]

I'm following this tutorial:
https://www.freecadweb.org/wiki/index.p ... STL_or_OBJ

When I try

Code: Select all

Create Mesh from Shape...

I get this error:

Code: Select all

Unhandled std::exception caught in GUIApplication::notify.
The error message is: std::bad_alloc

OS: Linux Mint 18.3 Sylvia
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.13509 (Git)
Build type: None
Branch: master
Hash: 0258808ccb6ba3bd5ea9312f79cd023f1a8671b7
Python version: 2.7.12
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.1.0
Locale: C/Default (C)

[ooveif9]

Seems the default method 'Mefisto' has this problem, it works though in 'Standard'.
However some parts of the model get displaced in the mesh. Any Idea why this is?

[NormandC]

Any Idea why this is?

How can we know? Your file does not contain the original mesh.

[ooveif9]

Are you saying it creates the mesh just fine for you?
The same displacement happens when I do 'refine shape' from the Part bench. I feel like I am missing something fundamental, but don't know what.

Any Idea why this is?

How can we know? Your file does not contain the original mesh.

[NormandC]

Duh. I'm saying you didn't provide the mesh for us to test!!!

[ooveif9]

I know what you are saying, but why are you saying that?
Can't you just create the mesh?

Duh. I'm saying you didn't provide the mesh for us to test!!!

[NormandC]

Can't you just create the mesh?

However some parts of the model get displaced in the mesh. Any Idea why this is?

Yeah sure, I will try to create a model that looks like your mesh, then export it to a mesh to see if I get the same as you.

OK, I've wasted enough time with you.

ooveif9 --> ignored from now on

[ooveif9]

I think there is a deliberate misunderstanding,

-Select all
-Mesh Design WB
-Meshes -> Create Mesh from Shape, Pick Standard Method.

VOILA, took 5 seconds.

If I try to upload the file with object and derived mesh, then it's too big for this forum. So no, I cant upload the mesh.

[bejant]

-Select all

Don't select All. Instead, from the history tree only pick the completed pieces that you want to mesh. From your model, what are the pieces you want to convert to a mesh?

-Meshes -> Create Mesh from Shape, Pick Standard Method.

After you have selected the things you want to convert to a mesh, try File > Export and at the bottom of the pop-up window choose the mesh file type of your liking.

[ooveif9]

I've tried both, selecting the objects from the history tree and using the box selection in the viewer to select the items. I found that both do the same thing, but maybe I'm wrong. I want to mesh everything that's visible, but the displacement happens of all the objects inside the part jackboard002, they will get displaced when turning them into a mesh or the 'refine shape' function.

-Select all

Don't select All. Instead, from the history tree only pick the completed pieces that you want to mesh. From your model, what are the pieces you want to convert to a mesh?

-Meshes -> Create Mesh from Shape, Pick Standard Method.

After you have selected the things you want to convert to a mesh, try File > Export and at the bottom of the pop-up window choose the mesh file type of your liking.