Search found 13 matches

by jcoppola
Fri Dec 03, 2021 4:55 pm
Forum: Developers corner
Topic: Composites Lab Workbench
Replies: 7
Views: 3483

Re: Composites Lab Workbench

Currently, I am experimenting with flattening algorithms without the use of mesh flatten. But maybe i go that route and use meshes since they need to be setup for FEA analysis. Regardless once i have a number of geometries working and get decent performance, i will hobble together an add-on so the b...
by jcoppola
Wed Nov 24, 2021 11:54 pm
Forum: Developers corner
Topic: Composites Lab Workbench
Replies: 7
Views: 3483

Re: Composites Lab Workbench

Rudimentary surface flattening initial draft.
Screenshots attached. the real question... Is it right? Appears about right. Once i finish the algorithms, i will attach materials for someone to validate.
by jcoppola
Wed Nov 24, 2021 11:49 pm
Forum: Install / Compile
Topic: No unwrap mesh Using Ubuntu 20 and freeCAD 0.19 snap
Replies: 5
Views: 2604

Re: No unwrap mesh Using Ubuntu 20 and freeCAD 0.19 snap

AppImage doesn"t run properly either the last one i tried. Can't install plugins or workbench addons as they are called here.
by jcoppola
Wed Nov 24, 2021 10:46 pm
Forum: Install / Compile
Topic: No unwrap mesh Using Ubuntu 20 and freeCAD 0.19 snap
Replies: 5
Views: 2604

Re: No unwrap mesh Using Ubuntu 20 and freeCAD 0.19 snap

Thanks for the tip. Why is it a separate feature if I already have most of Mesh Design functionality working? Why isn't the ubuntu snap build already using this build option?
by jcoppola
Wed Nov 24, 2021 7:41 pm
Forum: Install / Compile
Topic: No unwrap mesh Using Ubuntu 20 and freeCAD 0.19 snap
Replies: 5
Views: 2604

No unwrap mesh Using Ubuntu 20 and freeCAD 0.19 snap

There is no unwrap mesh feature on freecad from ubuntu stable snap store. I've added repository universe but this did not help. I am developing my own unwrap functionality without the need for meshes. However i would like to compare results with mesh unwrap.
by jcoppola
Tue Nov 23, 2021 5:20 pm
Forum: Developers corner
Topic: Composites Lab Workbench
Replies: 7
Views: 3483

Re: Composites Lab Workbench

Normal paths algorithm working... Experimenting more here before moving on...
by jcoppola
Mon Nov 22, 2021 4:33 pm
Forum: Developers corner
Topic: Composites Lab Workbench
Replies: 7
Views: 3483

Re: Composites Lab Workbench

Not yet. just feeling people out. Currently just prototyping the algorithms. Moved onto the flattening algorithm. If you notice in this set of screenshots, the solid is split up into successive layers using a surface normal. You need to zoom in to see it on a small screen
by jcoppola
Sat Nov 20, 2021 5:07 pm
Forum: Python scripting and macros
Topic: Flatten a face
Replies: 16
Views: 9317

Re: Flatten a face

Thanks for sharing this. I need to do this for compound curves. Doing non-conformal mapping preserving local distances instead of angles, i see no reason why this methodology could not flatten a surface on both u and v.
by jcoppola
Fri Nov 19, 2021 7:39 pm
Forum: Developers corner
Topic: Composites Lab Workbench
Replies: 7
Views: 3483

Composites Lab Workbench

Wasn't too much work writing a script in the python console in conjuction with selecting the surface face to peel layers of a solid using a surface offset by a thickness in the normal direction. The purpose of this is to create layer cut patterns for a laminated solid part. Next steps is to mesh and...
by jcoppola
Thu Nov 18, 2021 5:59 am
Forum: FEM
Topic: Modelling and analyzing parts with composites ?
Replies: 19
Views: 8783

Re: Modelling and analyzing parts with composites ?

On a related note, does FreeCAD have an "unfolder" whereby the user can click on a surface and FreeCAD will create a 2D pattern for pliable material that would cover the surface ? This would be another great tool for composites... I started writing one yesterday and new to FreeCAD API. My...