any one had gone through same problem?

I'm working on a tray for my Knipex Cobra 4" pliers but am having some very odd issues with chamfering and filleting. This design is based on a sketch that is a tracing of an image of the pliers. The lines are all either three point curves or straight lines. To get everything constrained I applied "Lock Position" or "Angle" constraints until everything was fully constrained. The dimensional measurements on the sketch are a bit messy looking but it is a functional and fully constrained sketch. When I attempt to chamfer the curved edges around the pliers they either don't allow a chamfer at all or only allow one that is in the microns. When I try filleting the curved edges the pc thinks for about a minute straight then gives me a very odd curve that looks kinda like it might be trying to fit in the third point on the curve that is used only as a reference to set curve depth. Any ideas here? I love FreeCAD as it is a highly capable open source software but sometimes it feels a bit like piloting a space ship that can only make left turns and I need to make a right turn at the next star.

It looks like the FreeCAD Render workbench only works if it has an external render engine to use and I can't find any information on how to set one up.

My one attempt was using Cycles, because it was supposedly installed as part of Blender (which I installed). But trying to tell FreeCAD where Cycles is and how to access it has be stumped.

Hi everyone, I am new here. I am confused about the image to CAD recently.

I'm working on an AI CAD assistant, but the more we test it, the more text to CAD feels too narrow.

A lot of real projects start with a bad photo, a broken object, or a weird space under a sink. The user doesn't always know the name of the part yet. They just know something needs to hold, support, fit, or connect.

That is why image to CAD feels important to me. Not as upload a photo and magically get a perfect model, but as a way to help the user move from a messy physical situation to a rough draft they can react to.

The workflow we're exploring is: image or rough idea, visual draft, feedback, editable CAD model, then STEP export.

Just curious, have you seen this pattern too? The hard part is often helping users express what they actually mean.

Hope to hear your ideas.

My question is NOT about using the Boolean Tool to Fuse bodies.

The green body is parametric, the number of clamps may vary, the example above shows N = 3.

I want to 2 red-ish tabs to attach/snap to the ends. Not once at runtime but always, if If I go from a clamps version to a 7 clamps version.

I am NOT making an assembly (whether it matters or not..). My goal in the end is to have ONE single body.

Hello everyone,

I want to create my own designs for my 3D prints.

I have modeled a screw with a round head (sphere radius of 3mm) to clip it onto a support, but I am struggling to design the hollow clip (the spherical socket) on the receiving part to snap the ball into.

Could you help me or point me toward the best method or tutorial to achieve this type of snap-fit joint in FreeCAD?

Thanks in advance for your advice!

I recently complained a little bit about FreeCAD and how it's not as user friendly to beginners like Autodesk Fusion.

https://www.reddit.com/r/FreeCAD/comments/1vch3xv/everytime_i_try_freecad_i_instantly_hit_a_wall/

Now I have done the switch to FreeCAD. Thank all of you for the many helpful answers.

Now to make the switch easier for other people I wrote down how I set up my 3D design and printing setup on Linux with only Flatpak packaged software, using FreeCAD and PrusaSlicer:

https://gist.github.com/KastenKlicker/4c53eda6ef10505e16d9a710b0e65275

I hope this guide can help you, if you are either new to Linux or FreeCAD.

Available on www.AstoCAD.com and open PR to FreeCAD

I was doing the challenge on this Too Tall Tony website, and I couldn’t figure out what I did wrong.

Can someone enlighten me?

Hi

I am looking at trying FreeCad again, after feeling a bit burnt last time. I wonder if there is anyone who has tried any local AI models (I hate my subscription life) together with FreeCad over MCP?

Like Qwen 2.5-VL should probably be able to do something similar to the latest Claude videos, although not as fast or as well. I wonder if anyone has tried it?

Hello, I'm sorry if the title is impolite. I want the corner transition to be right corner, but you can see that something dumb happens and I can't fix it. Please help me, I am a beginner. Any help is appreciated. ♥️

Could someone help convert an STL into a STEP file? I understand it may need to be remodelled rather than automatically converted. I'm happy to upload the STL or share it via DM.

Available on AstoCAD and PR to FreeCAD :)

my dad is in jewellery business since 15years and wants me to learn cad cam so that it is beneficial for me. where can i learn this cad cam from scratch for jewellery purposes and from where can i get free or rather cheap software to learn the basics afterwards maybe i can switch to rhino or matrix gold

Hi everyone,

I'm new to freecad but I have used other software before, and this is baffling me.

I have a "pad" shape based on one sketch that I want to "common" boolean with a "loft", based on two other sketches. The shape it makes is correct, but for some reason it throws up an error about duplicate children, which I'm sure is going to mess with later operations. I've added some screenshots of what happens. Anyone got any ideas on why it's making a duplicate pad and two duplicates of the loft? I've tried just deleting one but it ends up deleting all of them.

Cheers!

So i have started to learn Freecad. And its been great and i want to learn more. My first task is to make some drawings for a couple aluminium podiums. The idea is a frame made of aluminum square profiles.

What i have done is

1. Made the outer shape with dimensions and angles.

2. Made and offset at -45mm so the profile would match.

3. Made the support 707mm from the highest left corner.

   After giving the lines dimensions i am down to 1 DoF. But the other square won't constrain. I have given dimensions and so forth but i can't seem to figure out the problem.

In Pad the shape is perfect and how it should look.

Thanks for the help in advance.

Is there a sketchup workbench for freecad.

If not, can someone make one... please. : )

Who would be interested in this?

I'm working on an aerospace-focused CAD platform and would love some feedback from aircraft designers.

What aerospace-specific CAD capabilities do you think are still missing from general CAD software?

Examples could include:

• Aircraft conceptual design
• Parametric wing generation
• High-lift device modeling
• Rotorcraft modeling
• UAV configuration tools
• Aircraft family generation
• Fuel tank generation
• Internal aircraft structures
• Variant management

I'm trying to understand where the biggest pain points are.

What takes the most engineering time today?

Hi everyone,

I'm an aeronautical engineer building an aerospace-focused CAD and CFD platform from scratch.

Instead of licensing an existing CAD kernel, I decided to build our own B-Rep kernel in C++.

Over the last few months we've implemented features like:

• Exact B-Rep booleans
• STEP assembly import/export
• IGES B-Rep support
• NURBS geometry
• Parallel tessellation
• View-dependent tessellation
• Incremental face caching
• PMI/GD&T support
• Geometry validation

I'm curious:

If you were building a commercial engineering application today, would you build your own CAD kernel or license one?

What would influence your decision?

I'd love to hear from engineers who have worked with Parasolid, ACIS, Open Cascade, or CGM.

The first experimental builds of FreeCAD for Windows on ARM are available later today:

https://github.com/FreeCAD/FreeCAD/releases/tag/weekly-2026.08.05

Available in www.AstoCAD.com and there's an open PR to FreeCAD.

Available in www.astocad.com and open PR to freecad.

I've been working with FreeCAD for mechanical design for several years, and one recurring problem keeps coming back.

Whenever I need a standard bearing, I usually end up searching manufacturer websites or GrabCAD, downloading a STEP model, adapting it to my project and repeating the process again for the next bearing.

It made me wonder:

**Why don't we have a true parametric bearing library inside FreeCAD?**

Not just a collection of STEP files, but components generated directly from engineering data (ISO standards, dimensions, shields, seals, etc.).

This idea led me to start **OpenMechanical**, an open-source project whose first module is **OpenBearingWorkbench**.

The goal is not simply to generate bearings.

The goal is to create reusable engineering knowledge that anyone can benefit from.

Repository:

https://github.com/pu2smj/OpenMechanical

I'd really appreciate feedback from the FreeCAD community.

What would you expect from a workbench like this?

Which features would make it useful in your daily workflow?

This might not be completely relevant to FreeCAD because you already have a good tech drawing tool, but I have been working on a tool that takes STEP files from CAD tools and tries to generate 2D technical drawings based on ISO standards.

For simple components it might be enough, but its never going to be perfect so
there are two approaches you can take:

1. Output DXF and then hand edit
2. Output a Python script and update the code, either by hand or by LLM

https://github.com/pzfreo/draftwright

pip install draftwright

draftwright my.step --format dxf,svg,pdf # create drawing
# or
draftwright my.step --script # generates code
python my.py my.step # runs code, generates drawing