Update 29 Apr 2016: Updated Ulrich Brammer’s Unfolding tool to ver 17. Thank you Ulrich!
As part of doing home made projects one needs some kind of CAD software to design mechanical parts. As a fan of open source software I use FreeCAD which is a great alternative to the market’s highly expensive Solid CAD software.
One thing I use a lot, is designing Sheet Metal parts. As there is no special support for it in FreeCAD, it tends to take time to design Sheet Metal parts, as I need to manually add sketches, extrude walls, and add fillets. Furthermore, If I found something to be wrong in the base part, I have to go over the entire process to fix it.
This is where open source software shines. If I need a new feature, I can just go ahead and add it. Turns out FreeCAD is very friendly to extensions. So I decided to add a sheet metal extension and share it with others. One thing worth mentioning: there is this guy who is working on a sheet metal extension which will probably be far better then mine, but until he releases it, my extension can help speed up part design.
Installing the extension
Starting from Frecad 0.17, The installation is simple and done using FreeCad’s Add-on manager (Under ‘Tools’ menu)
For older versions:
To use the sheet metal extension, first you need to install the latest version of FreeCAD (0.16 at the time of writing) if yo dont have it already.
Now go ahead and download the extension: SheetMetal_V0.0.18
Extract this zip file into the Mod directory under the FreeCAD installation path. (on Windows it’s something like “C:\Program Files\FreeCAD 0.16\Mod”)
You should now see a new directory under Mod: SheetMetal.
That’s all for installation.
Working with the Sheet Metal extension
To simply understand how to work with the Sheet Metal extension, here is a sample workflow:
Start with thin layer solid shape, either by extruding a sketch, or creating a thin Box. From the workbench drop-down select “Sheet Metal”. Now select one of the side faces of your objects:
The Sheet Metal workbench shows 2 command icons:
Bend: Add bended extension
Extrude: Add a strait extrusion of the face
Click the Bend tool:
A 90 degrees bended extension with default values will be added. You can now play with the bend parameters by selecting the Bend part in the model tree, and then the Data tab underneath. In the parameters table, change the length to 7mm and add a 2mm gap on both sides:
Let’s extend the bended flap sideways. Select both side faces of the new wall. (Press and hold Control to select multiple faces). Now click the Extrude tool:
Shape the result: In the parameters panel, set length to 5mm and gap2 to 1mm:
Now let’s add more bended extensions. This time select 2 side faces of the base to make 2 symmetric bends. Click Bend. Set the length to 7mm:
That’s it, you can continue now and add more bends and extrusions until you get you desired final part. The nice thing about it all that the final part is fully parametric. This means that any change in a parent part will immediately propagate to the dependent parts, without the need to redo them. Click the gray “Cube” part from the model tree, and change the Length to 60mm. See how all the bends adjusts accordingly:
The parameters of the Bend give you lots of flexibility. You can for example add just the bend, by setting the Length to zero, or even just add the relief cuts, by setting the bend angle to zero as well:
Upon completion of the sheet metal part, you can select the OpenScad workbench and use the Refine () tool to cleanup the geometry.
Here is a sample part made with several symmetric bends:
That’s all! Hope it helps someone. Over time I will try to add some more features and keep the above SheetMetal.zip updated. You are welcome to leave comments and suggestions.
Update 13 Jun 2015: Ulrich Brammer’s Unfolding tool Added. Thank you Ulrich!
Ulrich Brammer’s great unfolding tool is now integrated into the workbench. Many thanks for the developer. To use it, simply select any one of the faces of the folded sheet metal and press the Unfold () icon
SHS
GOD bless you!
Very well, thank you !!!!
Amazing! Works like a charm.
Thank you very much!
Big thanx, it will be very usefull for me in and my students to create plans to make foldings of plates of plastics 🙂
I get a McAfee malware warning when I try to download the sheetmetal workbench. Anyone knows about this?
This is very strange, as this zip archive contains only a bunch of text files and images
Use Ubuntu 0.15 FreeCAD (4671 Revision Number). I copied the directory /usr/share/freecad/Mod/ but FreeCAD does not load the module. What you could be happening?
Not sure about Linux as I use Windows, but I think you should create a directory path: ~/.FreeCAD/Mod
then extract the zip there. (so you have a directory ~/.FreeCAD/Mod/SheetMetal and under it all the source files)
Yes, exactly this. FreeCAD should ave already created this directory if you have run it before.
Thanks for making this workbench!
I’m getting this error: revAxisV referenced before assignment. I made a few bends, then made a cut and tried to make a bend from the cut surface. Is there some inherent limitation that I am running into?
Thanks,
Adam
I need you to send the problematic part. I sent you a private mail.
This appears to be just what I am looking for. I’m investigating FreeCAD as a starting point for models to go to G-Code for engraving/milling on brass sheet using a Shapeoko, Stepcraft or similar. The models are for 7mm/1ft scale railway locomotives.
The intention is to engrave/mill brass sheet to achieve the same results as chemical etching but with much shorter lead times on minimal production runs.
Any information about the ability of the Sheet Metal add-on to cope with intersecting tubes? These would be tubes of differing diameters and offset centres which then need to be reduced to flat sheet for milling.
Sorry, but I can’t really tell. You should try some simple models to find out if it works for you. You can use the FreeCAD forum to ask others for their experience / tips.
Nice work, works fine. But I would change two things: For one, the angle specified should be the angle inside the two legs, i.e. 45° should specify a sharp bend and 180° should be no bending at all. Length should specify the length on the “outside”, not the length of the straight piece that is added; to be correct, the originating piece will have to be made “shorter”.
rmu75,
In the case of 45 deg, I can see the logic, but then for a 180 deg bend, which now will be 0 deg, it can be a bit strange. I agree though, regarding the other remark.
Anyway the problem is, as it is a parametric feature, any changes to that will not be backward compatible and will mess with existing saved files. So since it is not that critical, I tend to leave it as is.
shai
The sheet bending machines I know are programmed like this (angle between legs, distances measured to the virtual point where legs would cross, on the outside of the bent part), it is a convention, but probably the only one that makes sense.
The radius and elongation of the sheet metal depends on the specifics of the bending tool used to manufacture it; while modelling, I don’t want to bother about elongation-faktor and so on. Like it is now, you have to explicitly compensate for elongation.
I don’t know FreeCAD well enough, but there has to be some mechanism in place to deal with backwards compatibility and saving.
Didn’t find english version:
https://de.wikipedia.org/wiki/Biegeverk%C3%BCrzung
A very handy little add-on, thanks
Hi
Having a struggle getting this mod to work. I’m using Linux Mint 17 – apparently one has to install PySide manually on this platform.
OS: Linux Mint 17.3 Rosa
Platform: 64-bit
Version: 0.14.2935 (Git)
Branch: master
Hash: eab159b6ee675012bf79de838c206a311e911d85
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
SoQt version: 1.6.0a
OCC version: 6.7.0
I installed python-pyside3 (and all its dependencies). That got the the workbench to display.
Then I found that installing the older python-pyside (etc…) got the three icons to display.
Now, for the life of me, I cannot figure out how to get those tools active. They’re greyed out.
I have a simple extrusion of a sketch (i.e. rectangular prism), and no ammount of clicking can bring those tool buttons to life.
Uninstalled anything python3-pyside. Added anything else left in SYnaptic with python-pyside.
No change on extrusion. Tried it on a box.
They lit up!
Now they light up for the extrusion.
And nothing happens. Trying to add a bend to either object juts fails. There is data on it in the property view, but that’s all – no bend displayed.
Its very disappointing – it looks like a great tool!
Any ideas?
B
Hi Ben,
The tools are grayed until you click on a single face of your object. Try doing it on a simple 10x10x2 box created in the Part workbench.
I have no Linux to debug it, so if it still not working, try asking at the freecadweb forum.
shai
hiya, thanks for the response.
Turns out Linux Mint’s default repository provides an old FreeCAD version (13.something).
Update to 15 and it works well – many thanks.
B
For all those who have similar issues / make my mistake, see this page for the ppa.
https://launchpad.net/~freecad-maintainers/+archive/ubuntu/freecad-stable
Ref original help from here:
http://forum.freecadweb.org/viewtopic.php?f=3&t=14385&sid=0c568c2643293334ce7a8e81ca07c222
installed the extension it’s in the Mod directory but’s it’s not appearing in the menu I must not be holding my tongue in the correct direction. Any help would be fantastic
What operating system do you use?
windows 7
In Windows 7 it should work without any issues. Make sure that under the Mod folder you see a SheetMetal Folder. Then run FreeCad, and look at the main tool bar, there is a drop down menu, you should see there a SheetMetel option. Only when you select it, you will see the new SheetMetal buttons.
Many thanks for the reply But it was Me not holding my tongue correctly I was creating the folder then unzipping to that folder which was creating a folder within a folder. Now it works just fine thanks again
Thank you so much. Wow!
Is there an option anywhere to add a stiffener to a flat side? That would be great.
Can you post a link for an example of a stiffener?
Awesome piece of work! I need to model a cabinet made entirely of bent sheet steel so I can add components to it.
I don’t know where I would be without this… well actually I do. I’d not be doing the model and I’d be getting my mods wrong.
Many thanks
Hi,
I have unzipped your file and copied to mod folder. After launching FreeCAD and selecting Sheet Metal Workbench all icons are disabled, any clue?
Thanks
Hi,
I have unzipped your file and copied to mod folder. After launching FreeCAD and selecting Sheet Metal Workbench all icons are disabled, any clue?
Thanks
Never mind, it is working. Thanks for your great work.
Mo
Hi,
I am new to FreeCAD and Sheet Metal WB. I just downloaded the 64-bit Windows FreeCAD version 0.16 and worked through the examples on this webpage using the Bend and Extrude tools. I hope someone will help me with the following questions:
1). How do I delete just the rear extruded part of the left bend?. I have tried different ways but it seems I can only delete the last added part and have to backtrack all the way. Is that right?.
2). Let’s say I want to model a U-shaped bracket with two bends (material thickness = 0.050″, inside bend radius = 0.050″ both at 90 angle) and the outside dimension between two bends is 1″ (width). Is there a way to use the bend tool so that I can keep the width fixed at 1″ while I change the bend radius without having to calculate and edit the cube width everytime?.
3). What measuring tool and how do I use it to accurately measure the width?. I have tried the Measure Distance tool and it does not seem to snap to two lines perpendicularly; e.g. returning close values but not exact 0.05 for material thickness (more like cursor point to point distance).
I appreciate all the efforts that developers have put into making these great tools and sharing them. Thanks.
Thanh
Hi Thanh,
Welcome to FreeCad.
1. The way freecad is built, you cant delete just the rear bend. It is all model over model based and you can backtrack only from the last action (similar to undo). Changing sizes of the rear bend can be done at anytime, tough, so if you need to change it, its possible. You can even try to set bend angle and bend length to 0 as a hacked way do delete it, but in most cases it can lead to destroying the other bends.
2. Sorry, but yo cant set a fixed outside width, so you can play with parameters without changing the overall width. This is not FreeCad this time, this is a limitation of my workbench. I had already get some requests regarding that, but had not the time ywet to implement it.
3. Yes, the measuring tool of FreeCad is not that friendly, but I not aware of a better solution. Try asking at the FreeCad forum: http://forum.freecadweb.org/
shai
Hi Shai,
Thanks for your quick reply, very much appreciated.
1). Understood. I guess one would have to replicate an object to be deleted and use Boolean function to make a cut somehow?.
2). I think you need something like an offset parameter; for examples:
– Full extension… bend adds full extension as you now have
– No extension… bend adds no extension to the surface (outside bend surface is at the original surface)
– User-defined extension…user can enter any distance from original surface to outside bend surface (in cases like 1 or 1/2 material thickness, etc…)
3). Yes, I did look up in the FreeCAD help forum and someone suggested Part WB/Measure Linear tool. It works for what I wanted to do. It would be great to have something like a Universal Measuring WB that can measure anything in any work space and conveniently turn into dimensions, if required to save time.
So far I like your Sheet Metal WB very much. I am not so sure how to quickly design a metal case for electronics using FreeCAD without your WB. Thanks again.
Thanh
Hi, I’m new to both freecad and I have no idea how to mod. I do not understand how to download to freecad. Is there a more detailed explanation? I have windows 10 64bit Thank you
Hi Brock
Just go to http://freecadweb.org/wiki/?title=Download and click “Windows 64 bits” download option. Then run it as any other installation.
Thank you sir. I already have it downloaded, I do not understand how to mod and extract the file on this page.
Hi Brock,
For Windows 10, do the following:
Make sure FreeCAD is not running.
Download the file from this site. Double click on the file to enter the zip. Right-Click on “SheetMetal” folder and select “Copy”.
Using the file explorer go to C: -> “Program Files” -> “FreeCAD 0.16”
Right click on “Mod” folder, select “Paste”.
If Windows asks you for permissions, grant them.
Run FreeCAD. You should now see the new workbench in the list.
How do I make a bend at a negative angle? I would like to make a “dovetail” feature, with a 120deg bend, then a -120deg bend, another -120deg bend, followed by a final
120deg bend. Is this possible with the SheetMetal module?
To get a -120 deg just set it to 120 deg, and change the “invert” property to “true”.
Never mind… I didn’t try “invert”, which does what I want when set to true.
I followed the guidelines to install SheetMetal_V0.0.16 in the Mod directory but it doesn’t show up in the WB-dropdown list.
I cannot figure out why FreeCAD does not load the module, I got no error, no warnings.
OS: Windows 7
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.16.6704 (Git)
Build type: Release
Branch: releases/FreeCAD-0-16
Hash: 0c449d7e8f9b2b1fb93e3f8d1865e2f59d7ed253
Python version: 2.7.8
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17
Sorry, it was my mistake:
I put the files in data/Mod instead of Mod directory.
Hi shaise,
Your work is great. And it is working fine. But is there any way to do projected shapes in sheet metal.
Thanks & Regards
Satheesh
Do you mean to flatten the shape into the sheet metal? If so, you need to click on a face of the object and click on the flatten button. See the end of this post.
shai
Not like that. It just like make stamping operation.
Ah.. Then sorry, there is no option to do that.
I am trying to use your 0.0.17 with FreeCAD 0.16 on Windows. Love that you no longer nest objects differently from FreeCAD itself.
However unfold keeps failing with error messages like the following that doesn’t name the objects involved:
Running the Python command ‘SMUnfold’ failed:
Traceback (most recent call last):
File “C:\Program Files\FreeCAD 0.16\Mod\SheetMetal\SheetMetalUnfolder.py”, line 1557, in Activated
s = PerformUnfold()
File “C:\Program Files\FreeCAD 0.16\Mod\SheetMetal\SheetMetalUnfolder.py”, line 1478, in PerformUnfold
TheTree.Bend_analysis(f_number, None) # traverses the shape builds the tree-structure
File “C:\Program Files\FreeCAD 0.16\Mod\SheetMetal\SheetMetalUnfolder.py”, line 967, in Bend_analysis
SMLog(“counterface on otherSeamNode: Face”, otherSeamNode.c_face_idx+1)
‘NoneType’ object has no attribute ‘c_face_idx’
How to proceed?
P.S. Google captchas are horrible.
JB,
1. Did you select a face before unfolding? (needed for the unfold to work)
2. The unfold macro is not mine. better submit your issue to freecad forum, where you can attach files and images if needed: http://forum.freecadweb.org/viewtopic.php?f=10&t=11303&start=30
After flattening a part, is it possible to get the proper dimensions from the flat piece so the part can be fabricated?
Yes.
You need to install the “drawing dimensioning” workbench: https://github.com/hamish2014/FreeCAD_drawing_dimensioning
Then make a drawing using the drawing workbench, then use the “drawing dimensioning” workbench to add dimensions.
shai
Excellent tool, thank you for you’re work.
Feature request:
In real live, we have static correction factors for situations, where the inner bending radius and the sheet metal type and thickness is defined.
If no static correction value is entered the implemented k_factor calculation takes place when flatening, otherwise the static correction factor will be taken for the calculation of the ‘flaten lenght’.
fm
Hello,
I was working on my project when I came across Sheet_metal addon. Its remarkably great tool!
I have tried using it according to above tutorial, workds like charm even with Freecad 0.17pre. However, I was wondering if it can also be used to bend objects, that are already fully sketched in flat form and includes pockets on both flat and (yet to be) bent side.
Basically, I would like to bend the structure as marked on this picture by red lines:
https://files.fm/u/eyp8kt47
Could you please tell me, if that is possible?
Thaks, PS
Hi PS,
Unfortunately this option is not available. Sorry…
You can ask in FreeCad forum, perhaps others have found a way to do that. http://forum.freecadweb.org/
shai
Hi,
thanks a lot! I have been looking for something like that for a while now! Tried it on FreeCAD 0.16 on Fedora 25 and it worked without any problems.
One question though, I could not see any release tags on github, is v0.0.18 the git master head or where does the development take place?
Greetings,
Jin
Hello,
Thank you for a great contribution!
I have found a strange behaviour in the latest version at this date. If interested, please give me your email-address so that I may send you an example.
Best regards,
Tomas
What is the K-factor set at? Could it be possible to add a K-factor parameter so that the K-factor can be changed for different materials. Only a suggestion.
Hi Altus,
The unfold function was not done by me, so I can only answer you from picking the code. It uses the following formula: K = 0.65 + 0.5 * log (radius / thickness).
I had intended to make the K factor selectable, however, as said it is not my code and I could not get in touch with the guy who did it.
You can try playing with it yourself, by changing the lines 845 and 849 in the SheetMetalUnfolder.py
shai
Hello
Many thank for the great extension!!
Its works very well.
But I have found a small error:
I hope this is a good place to make a small bug report.
The extensions dont like angels from exaktly 60°.
59.9 or 60.1 are working well.
Beginning at the second bending and 60°:
The flatningtool is forgot the parts behind the bending.
Freecad 0.16, Ubuntu Linux.
Sorry for my horrible englisch!
If you want more informations please send me an email.
Hi Mark,
Thanks for your message. The flattening tool is not mine, hence it is difficult for me to fix it. Try leaving a message in the frecad forum (forum.freecadweb.org) under “sheet metal unfolder tool”
Hello,
Does anyone has an idea how to install this workbench on Mac OS? I do not have separate directories to store those files; except for Macros
Thank you for your comments
You should search or post this question at the freecad forum forum.freecadweb.org
Very useful. I need to test it with foamboard designs. Especially FliteTest’s a-folds and b-folds.
Superb work, many thanks indeed!
The Undo function does not seem to work for me. Anyone else have the same issue?
Thanks
Best ask these questions at freecad forum: http://forum.freecadweb.org
Very nice and useful ! Nice job !
Thanks a million.
Hello Shaise, I’m excited about FreeCAD, but I run into a problem when I try to unfold a part that contains concave fillets.The freeCAD Log containes the line:
Init: Initializing C:\Users\anton\AppData\Roaming\FreeCAD\Mod\sheetmetal… failed
Please help me!
Best regards,
diToni
Hi Ditoni
Did you install the freecad workbench using the AddOn manager?
shai
Hi
I am new to FreeCad
I followed the instructions and designed a box using SheetMetal. Easy and well featured.
But I cant find how to add some holes.
I selected PartDesign and Add hole, but I get error In order to use PartDesign you need and active Body object in the document
I cant work out how to make my box design the active body.
If I create a new body, how do I transfer my box design into it.
Your model was probably created outside the part-design workbench.
To work with sheet metal and part design, you need to start your object with part design.
Start with part design, create a new body, then add a sketch and pad it as the base of your box. Then continue with sheet metal. You can then place sketches on faces and add holes.
Best way to get help is via freecad forum.
I would like to how to put the K_FACTOR in the Sheet metal ADDON.
Hi,
Right now there is no way to set the k factor. Unfortunately the unfold code is not mine so I can not fix that. Try the freecad forum.
Very good work, please continue to build the freecad strong. There are many people depending on it for personal as well as official projects.
Hi,
cool thing. Well I’m stuck with something. I have a sheet which is usually Laser cut and then bend. Now the place where it is bend has (in 2D) non parallel edges. Any Idea how I make the bend? Why can I not set the extension of the bend to 0? I don’t want to change the design (too much) to make it 3d drawable. The part drawn in 2D, cut and bend works already fine.
Thanks for the tool.
For technical help, you can use the freecad community forum: https://forum.freecadweb.org/
Great workbench- I worked through your example and I am sure I will be able to use it lots! One weird thing, both times the example extrudes two edges at once, it only did the second one. I was able to just do them one after the other anyway. I am using Windows10 64 bit and FCAD 0.18. I checked several times and I was definitely selecting both faces…
Did you use control to select both, or you just selected one by one? I have checked and this should work.
Is there a way to install onto 0.18?
It works beautifully with 0.16 & 0.17 but does not show up in 0.18 when it added into the MOD folder.
It should work on 0.18 without any issues. Please post your problem at the freecad forum. Add to your post the OS that you use (you can copy all needed info from the help->about window).
Hi, I’m happy to have found something like FreeCad with this sheetmetal add-on.
I’m trying to run it under macOS 10.14 (Mojave). Only I have some initial questions:
Where is the binary and the mod directory installed on macOS?
Is FreeCSD compiled as a macport? Or does one better take the binary (DMG)?
—
Christoph
Hi, I’m happy to have found something like FreeCad with this sheetmetal add-on.
I’m trying to run it under macOS 10.14 (Mojave). Only I have some initial questions:
Where is the binary and the mod directory installed on macOS?
Is FreeCAD compiled as a macport? Or does one better take the binary (DMG)?
—
Christoph
Hi,
I’m not that familiar with MacOS/Unix versions. Please try the FreeCAD forum: http://forum.freecadweb.org
shai
Hello, I installed the newest version of FreeCAD today under Win 10 pro 64Bit. I added “Sheet Metal” via the Addon Manager. After restarting FreeCAD and selecting “Sheet Metal”, this error appears: name ‘os’ is not defined . Can you give me a hint, what it may be?
Kind regards
Alexander Berg
Hi, This looks like a FreeCad issue, Please try the freecad forum: https://forum.freecadweb.org
Great work, thanks!
Is there a way to “bend” metal though? As in: first make a drawing (and extrusion) of the flat piece, as would be needed for laser cutting, and then bend it along sketched lines?
Indeed there is a fold along sketch line feature. hover over the sheetmetal buttons to find it. Also, a better place to ask such questions is the freecad forum.
Hi,
I’m getting the following error in FreeCAD 0.19 after installation:
During initialization the error “invalid character in identifier (, line 1)” occurred in C:\Program Files\FreeCAD_0.19\Mod\SheetMetal\InitGui.py
FreeCAD Version Info:
OS: Windows 10 (10.0)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.22492 (Git)
Build type: Release
Branch: master
Hash: 621e1d603b2a8d1bcdcd8dc5c34bc8c35d29feb2
Python version: 3.8.5
Qt version: 5.12.6
Coin version: 4.0.0
OCC version: 7.4.0
Locale: German/Germany (de_DE)
Any help is highly sppreciated.
Thanks & bets regards,
Michael
An amazing tool and fantastic contribution to FreeCAD. Thank you so much. 🙂
Thank you!
Hi,
I’m not sure why the file folder for sheet metal doesn’t work in FreeCad 0.18
Could you please direct me to the file and walk me through exactly what I have to do. I would appreciate it as I have a cool project on the go. You can find it at http://uralica.com/biomass-stove.htm
Try working with freecad ver0.19. you don’t have to mess with any folders, there is a plug in manager where you can install sheetmetal directly from.
Sheetmetal seems to be broken in Freecad V0.19 R24276.
Adding bends suddenly gives very strange shapes and bends move to wrong edge of base shape.
Please report issues on the freecad forum: forum.freecadweb.org
Hi Shaise,
Can I hire you to do a web project?
hello Ulrich ,
I tried the shhet metal workbench and I noticed that the “Flatten sheet metal object” icon didn’t work out !
Could you tell me how to fix that problem please.
Thank you in advance for your further reply ;
Best regards,
Ratrimo
You need to select a face on the sheet model to activate the unfold icon.
To get better help for sheetmetal it is best to post it in the forum: https://forum.freecadweb.org/viewtopic.php?f=3&t=60818
OS: Ubuntu Core 20 (ubuntu:GNOME/ubuntu)
Word size of FreeCAD: 64-bit
Version: 0.20.29177 (Git) Snap 66
Build type: Release
Branch: tag: 0.20
Hash: 68e337670e227889217652ddac593c93b5e8dc94
Python 3.8.10, Qt 5.15.3, Coin 4.0.0, Vtk 7.1.1, OCC 7.6.2
Installed mods:
* sheetmetal 0.2.49
* A2plus 0.4.56a
Hello
I have question regarding updating the Unfold/Unfold_Sketch, after a parameter change of the origin body:
I designed a part with PART DESIGN, added a bend in SHEET METAL and created a technical drawing and DXF files based on the Unfold_Sketch.
Now I need to update one dimension/parameter of the origin body.
My problem: The changes are not updated in the Unfold/Unfold_Sketch and due to this not updated in my technical drawing.
How can I solve this issue without making a new bend/Unfold_Sketch and a new projection group in my technical drawing?
Is there a workaround available? Do I need to change my design process?
Thanks for your help,
Christoph
Hi Cristoph,
Unfortunately the unfold feature is not parametric, hence it is not updated when the base object is.
I’m not aware of any solution either then repeat the unfold process, but you can try asking on the
freecad forum: https://forum.freecadweb.org/
shai
buon giorno sheet metal V.02,53 con la versione freecad 0.20 non funziona correttamente…state risolvendo il problema?