Search found 3056 matches

by NewJoker
Tue Apr 09, 2024 11:50 am
Forum: Help on using FreeCAD
Topic: sketch: mirror and offset
Replies: 10
Views: 583

Re: sketch: mirror and offset

Ok, get it, but then to make a offset of the original and mirrored it gives Unhandled exception in ViewProvider::eventCallback: makeOffset2D: result of offsetting is null! (Event type: SoLocation2Event, object type: SketcherGui::ViewProviderSketch) Guess that isnt fully implemented yet, hope when i...
by NewJoker
Tue Apr 09, 2024 11:32 am
Forum: Help on using FreeCAD
Topic: sketch: mirror and offset
Replies: 10
Views: 583

Re: sketch: mirror and offset

I dont know how to put that horizontal line crossing that point. Use Sketcher ToggleConstruction first and then Sketcher_CreateLine . From that bottom point to somewhere on the right from it (just make sure that it's horizontal - auto constraint will take care of this if you position the cursor pro...
by NewJoker
Tue Apr 09, 2024 11:16 am
Forum: Help on using FreeCAD
Topic: sketch: mirror and offset
Replies: 10
Views: 583

Re: sketch: mirror and offset

Trust me, the lines arent mirrored as you can see int the attatchment, yellow dot pick. Try with a horizontal line crossing that point instead. That's the usual way of mirroring in sketches. mirror.png Also the offset should keep the original lines as we project it, then offset a side and close wit...
by NewJoker
Tue Apr 09, 2024 10:36 am
Forum: Help on using FreeCAD
Topic: sketch: mirror and offset
Replies: 10
Views: 583

Re: sketch: mirror and offset

Offset is on one side, just leaves the original geometry but you can delete it using a proper checkbox (shortcut U).

What mirror option ? The Symmetry tool creates a mirrored copy of the original geometry by default. There's also an option to delete the original geometry like with offset.
by NewJoker
Tue Apr 09, 2024 7:55 am
Forum: TechDraw
Topic: Issue #5694 Broken View
Replies: 29
Views: 2548

Re: Issue #5694 Broken View

Yeah, it works well when the view of the cylinder is vertical but not when it's horizontal:

broken broken view 1.PNG
broken broken view 1.PNG (7.2 KiB) Viewed 390 times
broken broken view.PNG
broken broken view.PNG (8.84 KiB) Viewed 390 times
by NewJoker
Mon Apr 08, 2024 1:09 pm
Forum: FEM
Topic: Errors in meshing CompSolid
Replies: 5
Views: 310

Re: Errors in meshing CompSolid

To be honest, I don't use Boolean fragments this way. But "fuzziness"/tolerance can be helpful when this boolean operations fails due to inaccuracies in geometry alignment (like other fuzzy booleans available unfortunately only in the Defeaturing workbench). In most cases it's not necessary.
by NewJoker
Mon Apr 08, 2024 10:13 am
Forum: FEM
Topic: Errors in meshing CompSolid
Replies: 5
Views: 310

Re: Errors in meshing CompSolid

RodMM wrote: Mon Apr 08, 2024 10:09 am Seems like I had set the tolerace for boolean fragments to 0, which broke it. Thanks, it's now meshing fine !
It's 0 by default. What value do you have to use here to make it work ?
by NewJoker
Mon Apr 08, 2024 9:53 am
Forum: Google Summer of Code (GSoC)
Topic: [GSoC 2024] Introduction
Replies: 6
Views: 799

Re: [GSoC 2024] Introduction

What are some potential project ideas for a Google Summer of Code (GSoC) project related to Finite Element Method (FEM) and the use of Abaqus and CalculiX as FEM solvers? We can talk about that on pm. There's still a lot to do to improve FEM. Of course, we can't use Abaqus as a solver in FreeCAD bu...
by NewJoker
Mon Apr 08, 2024 9:46 am
Forum: FEM
Topic: Errors in meshing CompSolid
Replies: 5
Views: 310

Re: Errors in meshing CompSolid

This geometry is broken so you won't be able to mesh it:

geom.PNG
geom.PNG (22.82 KiB) Viewed 278 times

geom 2.PNG
geom 2.PNG (62.88 KiB) Viewed 278 times
by NewJoker
Sun Apr 07, 2024 10:29 am
Forum: FEM
Topic: question on body for FEM sim of torsion box
Replies: 11
Views: 761

Re: question on body for FEM sim of torsion box

Usually, the agreement with hand calcs is much better for simple problems like this. But we have to keep in mind the simplifying assumptions of those formulas. Here, the circle should be small, according to Roark's. If you make the radius 4 times smaller, you will get a deflection of 0.332 in which ...