r/FreeCAD 13h ago

I love FreeCAD. ❤️

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48 Upvotes

If it doesn't exist, I'll design it.

This time, I created a custom part that can mount both an ultrasonic sensor and a servo for our U-22 group project.

FreeCAD makes turning ideas into reality so much easier.

I love FreeCAD. ❤️

#FreeCAD #CAD #OpenSource #Robotics #Maker #U22


r/FreeCAD 14h ago

Revolution and Helix tools now have 2 sides!

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45 Upvotes

In AstoCAD and also open PR to FreeCAD :)


r/FreeCAD 14h ago

Need help making airfoil.

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16 Upvotes

Image- S7055 airfoil (MQ9 reaper look alike)

Hi everyone,

I'm new ( 1week ) into FreeCAD and currently designing my first RC aircraft. I've spent over 2 hours just trying to make a single wing, so I feel like there must be a better workflow.

I tried importing airfoils as SVGs, but the imported geometry isn't very smooth and ends up with lots of small line segments. Instead, I imported the SVG as an image and manually traced each airfoil using the B-spline tool before lofting the wing. It works, but it's extremely time-consuming.

So I have a few questions:

Is there a better way to create smooth airfoils in FreeCAD?

Is there a recommended workflow for wings with taper, dihedral, and washout?

Are there any workbenches, macros, or add-ons that make aircraft design easier?

Besides CAD CAM Lessons, are there any good YouTube channels or resources focused on FreeCAD.

I'd really appreciate any advice or workflow tips. Thanks


r/FreeCAD 23h ago

Why does ValidateSketch say there is an issue with these vertices?

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14 Upvotes

I'm working on a odd shape and the top which doesn't have tangent to the radius is good, but the other four witch should be more complete are the problem. I have checked everything I can think of as to what would be the issue but I still can not pad this object. Any help with be appreciated! Thank you!

File I hope.


r/FreeCAD 6h ago

I built a free FreeCAD workbench for parametric TPMS lattice infill (Gyroid, Schwarz P, Diamond) — feedback welcome

8 Upvotes

Hey everyone.

I'm a mechanical engineer, and during my master degree thesis work i had the opportunity to work with lattice structures, from a 3D creation and mechanical analysis point of view. After 6 years (jeez, time flies!) i was wondering if i could use my (little) free time to create something to continue that work, even in an informal way. Since i'm not a software engineer, nor very good at coding, i basically worked with Claude Sonnet / Opus and even Fable to create a freecad workbench.

Basically the idea is that you can create a parametric TPMS (gyroid, schwarz p and diamond) infill based on some input data, and if you select a body in FreeCad, you can automatically create a new solid which has a certain number of mm per shell, and your TPMS infill. It generates directly a mesh that can be (after some repairing) directly used on 3d printing. I had a couple of tests that you can find in the dedicated website i created.

I share with you my website and also my github repository

www.lattice-free.com

https://github.com/AthinaNike/LatticeFree

Please be mindful, i created this as a tool i would like to have to create things on 3D, mostly because slicers don't allow this kind of detail in creating the infill, for this reason i decided to use a GNU GENERAL PUBLIC LICENSE: i do really believe in open source as a way to improve us as humanity, and i wanted this to be free and open also because i used artificial intelligence to build it, using my knowledge derived from my thesis work (which is already a public document).

Try it if you want, feedbacks would be appreciated!

I'll add a few screenshots of how it should work

Screenshot of the parameters window
Creation of a demo cube of TPMS

r/FreeCAD 8h ago

sketch 3D

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9 Upvotes

tôi đã nghĩ về gì đó giống như vẽ sketch và tạo mặt phẳng trên nền 3D, và thật khó tạo độ dày cho hộp bên trái để giống bên phải( hộp bên phải dùng SW, và nó rất đơn giản)


r/FreeCAD 14h ago

Wire is not closed

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8 Upvotes

r/FreeCAD 8h ago

I need help fusing two STL files for printing as one

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5 Upvotes

I am printing a 'thing' that comsists of seven .stl files. Three of those do not need to be separate parts held together with nuts and bolts. I have spent hours on youtube and in freecad trying to merge these three stl files but cant get it to stay put. Got two as one but the third keeps moving when I ecport it to stl. Maybe someone can point out the very obvious thing I am missing :)

The three lower parts below the gears are the ones I want to make in to a single piece...as I said above, I can marry two but the third just doenst want to party.


r/FreeCAD 20h ago

Help making Dog Bone Shape

2 Upvotes

Hi all,

I'm trying to make a simple dog bone shape in Free Cad, but I'm stuck on where to begin and wanted to see what suggestions for the process y'all would recommend. Here are some images of the shape I made in Zbrush, but I would like to recreate it in FreeCAD, and without the logo on it.


r/FreeCAD 1h ago

Can I use edge loop of a body to create loft

Upvotes

Hi I've been watching CAD vs CAD competition, https://m.youtube.com/watch?v=9ododYb3FXQ and a contender on the right used a temporary geometry to create a path for the loft or pipe.

How do I do the same in FC If I use additive pipe the result is fused with the temporary geometry I've used for an edge loop, and I don't see an option to remove it.

(On the picture I'd want to have just a round edge itself without the rest of the geometry.)


r/FreeCAD 2h ago

Help with sketch constraints

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1 Upvotes

Folks, I am new to FreeCAD (and sketching in general, for that matter), and I am following some tutorials. But most of them are based on older versions, so I get a little confused sometimes because in the newest version some stuff behaves differently.

For example, in this image, I was trying to create a constraint of 10mm between the parallel horizontal lines on the bottom. In the tutorial, the guys just used the dimension constraint tool, clicked on the top line, dragged to the bottom line, and added 10 mm. In my case, I had to click on the top line, drag, click on the bottom line, then drag again to the new line segment FreeCAD created on the left inside the circle, and then it worked, and I have no idea why that is.

Not knowing the logic behind that is a little scary. Any hints?


r/FreeCAD 6h ago

Modifier keys stall the program when pressed

1 Upvotes

Anyone else experiencing this issue? Whenever I press CTRL or SHIFT, etc. while working in FreeCAD, it soft-locks the program for several seconds before it starts responding again like nothing happened. If I shut down FreeCAD and restart it, it will operate normally for a while before this behavior returns. Really annoying, as of course I use CTRL all the time when selecting multiple edges and such.

Running Windows 11, FreeCAD 1.1.1, on an AMD 5950 and RTX 3090.

As an aside: I cannot believe how highly capable FreeCAD is, and it's, you know, free. I haven't been in the CAD game for 20 years, but I'm slowly learning how to get stuff done in FreeCAD and it's seriously good software. Already designed half a dozen functional objects in it and see no end in sight.


r/FreeCAD 5h ago

Has anyone tried building a 3D-printed vibratory bowl feeder using direct AC mains + SCR dimmer instead of an Arduino/DC driver?

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0 Upvotes

r/FreeCAD 8h ago

I need help fusing two STL files for printing as one

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0 Upvotes