r/FreeCAD • • 20d ago

📢 FreeCAD Swag - Buying the swag supports the project

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149 Upvotes

r/FreeCAD • • 4d ago

📢 FreeCAD v1.1.4 released (maintenance release) which also includes a security update for the 'ZipSlip' vulnerability. It is recommended to update to this latest release.

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95 Upvotes

r/FreeCAD • • 22h ago

FreeCAD grant program: funded projects in 2026 Q3

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80 Upvotes

r/FreeCAD • • 18h ago

Why FreeCAD is so strange?

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41 Upvotes

Hi! I'm trying to learn freecad and it is sooo annoying sometimes!

Why fillet radius is random at the same corners? Why after fillets, gap between two lines is 2.97andlotsofdigits instead of 3? How can i set the fillet radius right after i filleted the corner?

Why my cursor isn't "magnetizing" to cross of two lines? Is it possible to do that?

Why can't i delete one line from projection, instead of it, FreeCAD deletes the whole projection?

It is so hard to use sometimes! The simple things taking a lot of time to be modeled. How did you got used to that? What did you do to improve your experience? Maybe that's skill issue? Thank you for answers


r/FreeCAD • • 13h ago

Error in BIM WB

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6 Upvotes

Hey, I was following a FreeCAD BIM tutorial. I found this annoying issue where this error is triggered whenever I try to put a door or window:

10:59:47 <class 'ValueError'>
10:59:47 Traceback (most recent call last):
10:59:47 File "/usr/lib/freecad/Mod/Draft/draftguitools/gui_snapper.py", line 1449, in move
movecallback(self.pt, self.snapInfo)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^
10:59:47 File "/usr/lib/freecad/Mod/BIM/bimcommands/BimWindow.py", line 358, in update
self.baseFace = [o, int(info["Component"][4:]) - 1]
~~~^^^^^^^^^^^^^^^^^^^^^^^
10:59:47 ValueError: invalid literal for int() with base 10: 'rnalFace1'

I attach a video showing it.

I tried to found a related issue in the issue tracker but I didn't found anything related but also I'm not sure how to report it. Just publishing here to see if anybody have encountered before.


r/FreeCAD • • 1d ago

Part Design Pattern improvements for 26.3

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228 Upvotes

It seems the pattern improvements will make it to 26.3 (from https://bsky.app/profile/freecad.org/post/3mwth2wzv7k2q )

Last minute addition for 26.3: Part Design gets new pattern types: Circular, Path and Point, distributing instances along curves, points or concentric circles. All patterns now support suppressing individual instances - including the original instance - right from the 3D View.
For those wondering how they work: a quick demo of suppressing individual pattern instances and overriding spacing for specific ones directly via On-View Parameters.


r/FreeCAD • • 16h ago

how to scale a STEP file nonlinearly?

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4 Upvotes

Hi,

I have spherical model with a certain texture that i want to convert to a more egg shaped object. it needs to maintain being editable after the conversion since i will be making a injection mold out of the shape.

i have been messing around with doing it in blender and then reimporting into fusion360/freecad, trrying to convert it from .obj back to .step but with no luck. how would you go about this? all suggestions are welcome!


r/FreeCAD • • 13h ago

Help needed: how to pattern/duplicate the motor arm into 4 arms on a UAV in FreeCAD (beginner)

1 Upvotes

Hi everyone,

I'm a beginner with FreeCAD. I'm designing a UAV in Part Design (FreeCAD 1.0). Right now my Body has the fuselage and one motor arm (the protruding part that holds the motor). I want to duplicate it into 4 arms so I can mount 4 motors.

I've read about a few approaches, such as MultiTransform (Mirrored + Polar Pattern), or splitting the arm into a separate Body and using Draft Array plus Boolean Union. However, my model has many features (Pads, Pockets, Datum Planes, Fillets, etc.), so I'm not sure:

  1. Which features I should select to pattern correctly?
  2. Which method avoids reference errors (topological naming problem)?
  3. What is a sensible 4-arm layout for a long fuselage like this?

Could anyone take a look at my file and show me how to do it, or send back a corrected version? Any video or tutorial recommendations would also be appreciated.

https://drive.google.com/file/d/1tVyl7NBH1VNP-D4_qOgtuuIOGg9DnNH7/view?usp=sharing

Thank you very much! 🙏


r/FreeCAD • • 14h ago

Tips for FrameForge users

1 Upvotes

I may be the only person that didn't know this, but if you select a bunch of different profiles you can set the end offset values at the same time. Oh, man. What a time saver! This is the third time I have used FrameForge and I just clued into this.

Another thing is the frame sketches need to be outside of a body, so my recommendation is to have the FrameForge workbench open and do each horizontal 'layer' as needed, and then use the Parametric Line tool for your verticals. Much easier.

Make use of copying sketches.

If you were making a cube, for instance, you would draw the square that is the base of you cube, then copy that sketch. YOU NEED TO DESELECT "Auto Select Depending Object". Man, that box will cause you problems. Anyway, with that deselected just paste a copy of that first sketch in, then change its z value in the Placement Offset as required. Now you can make layers, and you can always change them later if you are adding stuff. Anyway, once you have your two layers now you just select two vertexes and hit 'Parametric Line' for each corner.

Select the whole mess of lines and click on 'Create profile' and you're good.

Now you adjust the end offsets using the tip above, and in no time you have your frame.

Wonderful.


r/FreeCAD • • 20h ago

Modeling an existing furniture

3 Upvotes

Hello everyone ! I’m a beginner in FreeCAD. I’ m trying to find a workflow to model an existing furniture in my office to use as reference and practice mostly. Should I just create multiple bodies and position them in part design ? Or use the assembly ? I’ve seen videos with the Woodworking plugin but it seems more useful to design something from scratch to build it after. I only want to build my desk in FreeCAD to practice the tools and get a workflow.

Cheers !


r/FreeCAD • • 1d ago

I released v0.2.0 of my open-source FreeCAD cabinet workbench

8 Upvotes

A few months ago I shared AIGenFurniture here, a FreeCAD workbench I've been building to automate some of the repetitive work between designing cabinet based furniture and preparing it for production.

I've now released v0.2.0, and the workflow has changed quite a bit since the earlier version.

The new version also adds/improves:

  • configurable design rules
  • standardized order and material setup
  • new cabinet architectures
  • improved control of fronts, drawers and shelves
  • material inheritance
  • automatic cabinet accessories
  • aggregated accessories export

I'm also starting to test a PRO model with furniture workshops. Rather than making PRO simply a bigger feature bundle, the idea is to configure it around each shop's workflow: their cabinet architectures, construction rules, hardware, materials, manufacturing outputs and integrations.

You can install it from the Addon Manager and find tutorials on Youtube. Feel free to try it and let me know what you think. I'm developing the next iteration based on feedback from the community of users.


r/FreeCAD • • 19h ago

A bit weird. Access violation when extending multi-transform

1 Upvotes

I have a reasonably complex part which has three layers of hole patterns (6 features total, all pockets) that are then in a polar array which is then in a linear array. I had it set with just 3 occurrences of the linear array for testing purposes and left most of the surface blank. No problems. I decided to set the linear array to 20 occurrences so that I could see the final result, and after the computer chugging away for a bit I got an access violation error and the visual representation of the part didn't change. I went back into the multi-transform and the magenta 'result' thingie was still showing what it was supposed to show. I tried just hitting 'okay' again and it chugged again and this time it worked and I have my part with ~900 pockets in it.

I'm just curious if anyone has run into this before or can think of what might have caused it.

It wasn't a problem in the end, and I don't know if I can replicate it.


r/FreeCAD • • 20h ago

Best way of creating a parametrically scaled and positioned airfoil?

1 Upvotes

I'm trying to design a parametric wing where I can change the width of the airfoils at the root and the tip.

So far, using the AeroFoil macro to create a sketch, then using the Part Scale tool to size it, as kind of worked, but this makes it hard to then work with the resultant airfoils in Part Design.

Scaling in the Sketcher workbench, as well as using the AeroFoil or Airfoil Import and Scale macros doesn't seem to allow me to define the scale factor using a parameter.

Is there a better way to go about this?


r/FreeCAD • • 1d ago

Extruding specific features within a sketch

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3 Upvotes

Hello,

I am a very experienced cader but this Freecad is very free. It seems I can only extrude every single line or feature within the entire sketch and I'm not able to select specific features of the sketch to extrude. I'm trying to extrude a circle shown above but I had to use extract geometry so my circle could be centered. Essentially, on this sketch there are those two circles and a line. Since the extrude is forcing me to extrude every feature on the sketch it is trying to extrude the line which is an error.

Is there a way to select specific features within a sketch to extrude?


r/FreeCAD • • 1d ago

Issue. Chamfer on face does not work, but fillet does. Not sure what could be the cause.

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3 Upvotes

Hi all.

I have been troubleshooting this for several hours, and I'm not sure what is causing the issue. I have padded the sketch with the cross-like figure and then I'm attempting to apply a chamber to the edges of the face highlighted in the captures. It is not working, when I apply it, I get a non specific error. It does work however, when I apply a fillet to the same face/edges. I have looked for potential sketch issues, but I do not see anything causing the problem. Any help would be greatly appreciated.


r/FreeCAD • • 1d ago

Help - How to create the library of objects from step files for designing a customised cockpit?

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26 Upvotes

Hello,

I would like design my future cockpit for sim racing based on aluminium profiles. On the website of the supplier there are the step files of the profiles.

Following the video https://www.youtube.com/watch?v=_Og9WCItFgg the procedure fails for me at step "Move/Array Transform workaround explained" as the displayed in this video.

Basically the geometry gets partially lost, as several lines move around.

Also tried with a Ctrl-C,V to copy in a different sketch, but the result is the same.

What am I doing wrong? Any advice how to do it correctly?

Thanks in advance


r/FreeCAD • • 1d ago

Thickness produces a weird artifact

3 Upvotes

I am new to FreeCAD and CAD in general so I am not sure I am doing things right. I am trying to model a cover around a box with a rounded corner so I thought that thickness should be ideal operation for it. So I selected three faces of the box and tried applying thickess and what I see inside is not empty, instead it generates some weird shape. Is it a bug in FreeCAD? Can I work around it somehow?


r/FreeCAD • • 11h ago

Beginner needs help recreating this 3D part in AutoCAD 2021 I need step-by-step guidance

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0 Upvotes

Hi everyone! I'm a complete beginner in AutoCAD 2021 and I'm really struggling with this 3D mechanical part.

I have the reference drawing attached, and I need to recreate the model in 3D using the dimensions shown.

I'm looking for someone who can guide me through the entire process step-by-step, because I'm still very new to AutoCAD and I don't know the correct order of commands to use.

What I need is something like:

  1. What to click first in AutoCAD 2021
  2. What command/tool to select next
  3. What points to click or what values to type
  4. The exact dimensions to enter for that step
  5. What the drawing should look like after that step
  6. Then the next step, continuing until the entire model is finished

For example, if the first step is drawing a rectangle, I'd really appreciate knowing which tool/icon to click, where to start, where to click next, and what exact dimensions to enter. Then I'd need the same kind of guidance for the next steps.

I'm also confused about how to construct the different parts of the model, especially:

  • the main base
  • the front cut/notch
  • the middle raised/curved section
  • the curved back piece
  • the R15 and R10 curves
  • the Ø20 hole
  • the correct heights and lengths
  • when to use EXTRUDE, SUBTRACT, UNION, etc.
  • how to position and assemble the separate parts correctly

I'm having trouble figuring out which dimensions in the reference should be used at each stage, so I would really appreciate it if someone could walk me through the drawing from beginning to end, using the actual dimensions from the reference.

I'm using AutoCAD 2021, and I'm a very beginner, so please don't assume that I already know where the commands or tools are.

Thank you so much to anyone who is willing to help me work through this


r/FreeCAD • • 1d ago

Need a FreeCAD for dummies because, yea I need it broken down Barney basic style

2 Upvotes

Hi all, I have been messing around with tinkercad but I'm tired of the size import limitation. Also want to take models and adjust them and freecad looks like it might be worth it. But does anyone know of a tutorial that can dumb it down to my level, very beginner like. Any help or suggestions would be appreciated.


r/FreeCAD • • 1d ago

"wire not closed" error message

3 Upvotes

i'm a total newbie who barely knows anything about FreeCAD, and, to me, all of these lines seem connected.. could anyone help?


r/FreeCAD • • 2d ago

FreeCAD Tournament Highlights

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107 Upvotes

B perry did awesome in the tournament last week - Video highlights here: https://www.youtube.com/watch?v=hgJauQ8qThk&list=PLOFx9cka1g1M&index=1


r/FreeCAD • • 1d ago

How to add a new material for FEM testing

2 Upvotes

I swear I have done this before, but either it has changed or I have gotten a lot stupider in a couple of years.

I have checked the documentation and it is THIN on this topic. This is what I am seeing:

So.... now what? Where are the properties to fill in? If I press the '+' button it wants to load an existing material. There are a few properties available but the only one that I care about is density. Where is all of the 'normal' stuff like tensile strength and elasticity?

It would be SO NICE if I could enter the information in the task panel and IT WOULD SAVE IT!!


r/FreeCAD • • 2d ago

この前アップしたロータリー、満足いくとこまで作れた

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123 Upvotes

満足だ


r/FreeCAD • • 2d ago

Tracing Walls from an Image Floor Plan in FreeCAD BIM

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20 Upvotes

This tutorial shows how to trace walls from a raster image with a sketch of a floor plan. It shows several useful techniques for placing, moving, trimming and extending walls. It also shows how to place windows and doors to walls.


r/FreeCAD • • 1d ago

FreeCAD is a CAD software not for fainthearted

0 Upvotes

FreeCAD forces you to learn not just CAD but also computer science, programming and building mathematical geometrical models that do not explode when computed. This is because FreeCAD does not limit many variables internally unlike commercial CAD packages where you as a CAD user should learn how to properly define your models so that it is nicely drawn with FreeCAD. Otherwise the CAD kernel in FreeCAD (OCCT) would be feed with garbage data which will lead to crashing many CAD functions as defined. So people who are really good with Computer science who have in depth knowledge with BSpline, edges, splines and programming are really able to build anything with FreeCAD!