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shaise / FreeCAD_SheetMetal

A simple sheet metal workbench for FreeCAD
http://theseger.com/projects/2015/06/sheet-metal-addon-for-freecad/
GNU Lesser General Public License v2.1
197 stars 57 forks source link

Sheetmetal operations do not update on complex model #389

Open schauma opened 2 days ago

schauma commented 2 days ago

I had a fairly complex model when I realized my dimensions needed to be changed. To be specific, I have a thin Box that I used as a "base" for various bends/pads/pockets that I want to change the dimensions of. I have all my dimensions in a spreadsheet parametrized. However when I change the values, the model does not update. Even if I manually entered the values without referencing the Spreadsheet, the model does not change. I thought I tested this beforehand and indeed, if I do the same changes on a much more simplified model it works as expected.

So now, why are the changes in the simple model applied while the more complex model does not change? Is there a methodology that is followed? Are there certain operations/features that break the recomputation process with sheetmetal WB? I tried to recompute every step individually however there is no change whilst also no error.

If needed, I can supply my freeCAD file.

I tested this on the latest stable FreeCAD version, the 1.0rc2 and the weekly build, without success. Sheetmetal workbench 0.5.0

luzpaz commented 2 days ago

Latest sheetmetal version is 

V0.5.03 22 Oct 2024: Fix fill gap issue in base shape feature. - Partially Fix forming issue not working in latest freecad

Can you always provide your full About info when you open a ticket?
Also can you provide an example file? Zip up you .fcstd file and drag/drop it into Github textbox to it auto-attaches to this ticket. TIA

schauma commented 2 days ago 
OS: Ubuntu Core 20 (ubuntu:GNOME/ubuntu)
Word size of FreeCAD: 64-bit
Version: 0.21.2.33771 (Git) Snap 908
Build type: Release
Branch: tag: 0.21.2
Hash: b9bfa5c5507506e4515816414cd27f4851d00489
Python 3.8.10, Qt 5.15.7, Coin 4.0.0, Vtk 7.1.1, OCC 7.6.3
Locale: English/United Kingdom (en_GB)
Installed mods: 
  * Curves 0.6.51
  * sheetmetal 0.5.3
  * A2plus 0.4.68

Thanks for the fast reply. I do not know how to specifically export that part in so I just compressed the whole thing. My problem specifically refers to my "Frame" Body and directly the dimensions of the very first box. I hope this helps

old_pc.zip

shaise commented 2 days ago

I can confirm this issue, but I dont know if it is sheetmetal related. When I change values, the sheetmetal execute function is not being called at all. Also @schauma , I'm curious, the base box is is 310x1x180 where the width is 1 not the height. So how come in the view the width is on the z axis and not the y axis? i did not see any attachments/rotations: image when I try to create a new box in a new body with exact same dimensions, they plate is standing, not laying flat: image

schauma commented 2 days ago

I cannot give you a definitive answer. This file has been opened and modified in 3 different FreeCAD versions so my suspicion would be that maybe something got mixed up in there. I also remember struggling with rotations of the different coordinate systems at one point. But as I am still a beginner I cannot pin-point where that manifests itself. I double-checked in an empty file as well and I get the same behavior you showed. I really hope this is not the cause for this issue. I'd hate to redo the same thing once more. Do you see any bugfix at the horizon for this problem or can you recommend a workaround by any chance?