FreeCAD钣金插件 SheetMetal V0.3.13

# FreeCAD SheetMetal Workbench [](https://lgtm.com/projects/g/shaise/FreeCAD_SheetMetal/alerts/) [](https://lgtm.com/projects/g/shaise/FreeCAD_SheetMetal/context:python) A simple sheet metal tools workbench for FreeCAD  ### Tutorial by Joko Engineering: [](https://youtu.be/xidvQYkC4so "FreeCAD - The Elegant Sheet Metal Workbench") #### Developers: * Folding tools: > [@shaise](https://github.com/shaise) Shai Seger > [@jaisekjames](https://github.com/jaisekjames) > [@ceremcem](https://github.com/ceremcem) Cerem Cem ASLAN > ([@JMG1](https://github.com/JMG1)) Based and inspired by Javier Martínez's code * Unfolding tool: > Copyright 2014 by Ulrich Brammer <ulrich1a[at]users.sourceforge.net> AKA [@ulrich1a](https://github.com/ulrich1a) # Wiki [SheetMetal Wiki at FreeCad](https://wiki.freecad.org/SheetMetal_Workbench) # Terminology ## Sheetmetal Workbench definitions  ## Physical material definitions  # Test case As a simple test case, consider the following example: * Inputs: - Thickness: 2mm - K-factor: 0.38 (ANSI) - Leg length: 48.12mm - Inner effective radius: 1.64mm - Flange length: 51.76mm * Output: - End to mold-line distance: 50mm You can find a simple calculator in [`tools/calc-unfold.py`](tools/calc-unfold.py). # Material Definition Sheet ### Description You can use a Spreadsheet object to declare K-factor values inside the project file permanently. This will allow: * Different K-factor values to be used for each bend in your model * Sharing the same material definition for multiple objects ### Usage 1. Create a spreadsheet with the name of `material_foo` with the following content (see [this table](https://user-images.githubusercontent.com/6639874/56498031-b017bc00-6508-11e9-8b14-6076513d8488.png)): | Radius / Thickness | K-factor (ANSI) | | ---| ---| | 1 | 0.38 | | 3 | 0.43 | | 99 | 0.5 | Notes: 1. The cell names are case/space sensitive. 2. Possible values for `K-factor` is `K-factor (ANSI)` or `K-factor (DIN)`. 3. `Radius / Thickness` means `Radius over Thickness`. Eg. if inner radius is `1.64mm` and material thickness is `2mm` then `Radius / Thickness == 1.64/2 = 0.82` so `0.38` will be used as the K-factor. See [lookup.py](https://github.com/ceremcem/FreeCAD_SheetMetal/blob/k-factor-from-lookup/lookup.py#L46-L68) for more examples. 2. Use "Unfold Task Panel" to assign the material sheet. 3. Unfold as usual. ### Screencast  # Engineering Mode ### Description Some sort of parameters effect the fabrication process but are impossible to inspect visually, such as K-factor, which makes them susceptible to go unnoticed until the actual erroneous production took place. In engineering mode, such "non-visually-inspectable" values are not assigned with default values and explicit user input is required. "Engineering mode" is a safer UX mode for production environments. ### Activating 1. Switch to SheetMetal WB at least once. 2. Edit -> Preferences -> SheetMetal 3. Select `enabled` in `Engineering UX Mode` field. # Installation For installation and how to use, please visit: http://theseger.com/projects/2015/06/sheet-metal-addon-for-freecad/ Starting from FreeCAD 0.17 it can be installed via the [Addon Manager](https://github.com/FreeCAD/FreeCAD-addons) (from Tools menu) #### References * Development repo: https://github.com/shaise/FreeCAD_SheetMetal * FreeCAD wiki page: https://www.freecadweb.org/wiki/SheetMetal_Workbench * Authors webpage: http://theseger.com/projects/2015/06/sheet-metal-addon-for-freecad/ * FreeCAD Forum announcement/discussion [thread](https://forum.freecadweb.org/viewtopic.php?f=3&t=60818) #### Release notes: * V0.3.13 10 Dec 2023: update polish translations by [@kaktusus][kaktusus]. * V0.3.12 11 Nov 2023: Fix duplicate lines in unfold sketches issue #284. * V0.3.11 11 Nov 2023: Fix broken engineering mode. Some unfold gui cleanup. * V0.3.10 09 Nov 2023: Add base Sheetmetal shape tool, proposed by [@blindmessenger][opic82482]. * V0.3.02 10 Oct 2023: Add Polish translation by [@kaktusus][kaktusus]. * V0.3.01 09 Oct 2023: Add Spanish translation by [@hasecilu][hasecilu]. * V0.3.00 02 Sep 2023: Refactoring Unfolder by [@sliptonic][sliptonic]. * V0.2.63 28 Mar 2023: Fix further unfolding issue by [@Syres916][Syres916]. * V0.2.62 24 Mar 2023: Add translation support + Portuguese translation by [@riqueenz][riqueenz]. - Add dxf/svg export option to unfolder + fix unfolding issue by [@Syres916][Syres916]. * V0.2.61 01 Jan 2023: Add option to link all bend radii to base bend radius by [@alexneufeld][alexneufeld]. * V0.2.60 24 Dec 2022: Improved unfolding script to better handle chamfers by [[@chappatted][chappatted]. * V0.2.59 11 Nov 2022: Make unfolder sketch work with linkstage version by [@Syres916][Syres916]. - Fix refine function when multiple edges selected - Make unfolder work with counter bore holes by [@chappatted][chappatted]. - Fix typos by [@luzpaz]luzpaz. * V0.2.58 06 Oct 2022: respect 'midplane' and 'reverse' options by [@alexneufeld][alexneufeld]. * V0.2.57 07 Sep 2022: Fix unfold issue with compound holes by [@chappatted][chappatted]. * V0.2.56 04 Aug 2022: Fix issue #206 (object color changes by every sheetmetal command) by [@Syres916][Syres916]. * V0.2.55 03 Aug 2022: Add more backward compatibility to pr #242 by [@Syres916][Syres916]. * V0.2.54 30 Jul 2022: Fix version 20 compatibility with pr #242 by [@Roy-043][Roy-043]. * V0.2.53 28 Jul 2022: Fix getBendetail and smExtrude for non-planar connecting faces by [@Roy-043][Roy-043]. * V0.2.52 25 Jul 2022: Better fix for the UseSubtraction issue. Thank you [@akshimassar][akshimassar] * V0.2.51 23 Jul 2022: Several fixes and new features: Thank you all! * Add Length Spec feature to set adaptive flange lengths by [@rmu75][rmu75]. * Fix smExtrude for cylindrical connecting faces by [@Roy-043][Roy-043]. * Fix Face.UseSubstraction typo by [@mangelozzi][mangelozzi]. * V0.2.50 09 Jul 2022: Moved 'Drawing' to 'TechDraw' for FC0.21 compatibility. Thank you! * V0.2.49 03 Jul 2021: Add SubShapeBinder as source by [@s-light][s-light]. Thank you! * V0.2.48 02 May 2021: Add context menu [@jaisejames][jaisejames]. Thank you! * V0.2.47 24 Feb 2021: Add translation support by [@jaisejames][jaisejames]. Thank you! * V0.2.46 31 Jan 2021: Small bug fixes and code clean by [@jaisejames][jaisejames]. Thank you! * V0.2.45 24 Dec 2020: Added punch tool feature by [@jaisejames][jaisejames]. Thank you! * V0.2.44 19 Dec 2020: Added extend feature by [@jaisejames][jaisejames]. Thank you! * V0.2.43 01 Dec 2020: Added corner feature and map sketch to cut openings by [@jaisejames][jaisejames]. Thank you! * V0.2.42 09 Jun 2020: Added Engineering UX Mode by [@ceremcem][ceremcem]. Thank you! * V0.2.41 01 Jun 2020: Added Drop down Menu * V0.2.40 24 May 2020: Added added tools for conversion of solid corners to sheetmetal by [@jaisejames][jaisejames]. Thank you! * V0.2.34 09 Mar 2020: Rename "my commands" context menu to sheet metal * V0.2.33 09 Mar 2020: Fix bend radius bug on sketch bends. Thank you Léo Flaventin