Questions tagged [freecad]

FreeCAD is an open source 3D modelling software application for designing parts.

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How do you marry two object's holes in Freecad? 3D printing a drone

I am 3D printing a drone and I need very good tolerances for the holes so the arms and motors align correctly. I have two sets of 4 holes for two solid objects (Imported as STEP) I want to align the ...
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3 votes
4 answers
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How can I convert a mathematically defined shape into a 3D printable G-code file?

Suppose I have the X, Y, and Z coordinates (either in a list or a function z = f(x,y)) that defines a shape as the one provided and I want to 3D print it with a solid bottom, is there an easy way to ...
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3 votes
2 answers
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Creating a 3D modelled "mold over" an imported object

Let's say I've made a 3D scan of my face and managed to get that into FreeCAD. How might I then create an object (it's a mask, okay?) that conforms to the shape of my face, with a given thickness, ...
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2 answers
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How to fill these squares easily

I have an array with holes that I have to fill with different materials. My question is there is an easy way to fill them directly? I tried array, array draft and it is annoying to adjust them. In ...
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  • 101
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How To Extrude These Cubes Array?

I apologize if the questions sounds stupid, I want to extrude these cubes only, I tried to select all, the freecad froze, and when I select the edges, it also say, no shapes selected for extrusion, ...
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  • 101
2 votes
1 answer
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Beginner FreeCAD question on axes when sketching

I am a raw beginner at FreeCAD and 3D draughting. Watched some tutorials and designed 2-3 simple items. Aiming to use it for 3D printing. My question relates to 2D sketching. As I understand the ...
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  • 141
2 votes
1 answer
205 views

OpenSCAD / FreeCAD splitting, hollowing and threading model

I had a thought the other day that it's 100 % waste to have either a solid or hollow 3D-printed model in relation to utilizing the space inside of it for different modules, e.g. secret compartments, ...
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  • 21
5 votes
1 answer
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In FreeCAD, how do you copy a sketch from one plane to another?

I'm using FreeCAD, and I would like to duplicate a 2D sketch on another plane, but I can't seem to find an obvious way to do this.
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Showing dimension of a model in FreeCAD [closed]

I had a simple model imported into FreeCAD and I'd like to know the dimension of the bounding box for the model, how do I do that?
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  • 111
1 vote
3 answers
324 views

Sketchup Free STL import in FreeCAD not working with Fasteners Workbench

Hoping to get some help with something I'm trying to accomplish. Unfortunately, due to my being a noob with 3D modeling in general, I'm coming here for hopefully more direct help. ...
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2 answers
312 views

Cura imports FreeCAD stl wrong

I am trying to import an STL file, I created in FreeCAD. It has a hole in the hull of the object and behind that hole there are two pins inside the object (see attached FreeCAD screenshot). When I ...
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  • 121
7 votes
2 answers
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FreeCAD to design moving parts

I am trying to create a mechanism with moving parts, and would like to see how it works (whether it even works) before printing it. For example, there's a servo with a bracket, and I would like to ...
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  • 173
1 vote
2 answers
100 views

FreeCAD: Scene doesn't look 3D [closed]

I finished a 3D object for 4 wheels, but something seems wrong with the final scene to me: The nearer wheels (#1 and #2) appear smaller than the far one (#3 and #4), and the distance between wheel #3 ...
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7 votes
3 answers
10k views

Split/edit part in FreeCAD?

I'm trying to modify some parts on this thing. I'm kind of new to dealing with the modeling aspects of this. I am attempting to widen the part essentially 3mm. This would involve modifying the chain ...
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  • 273
4 votes
1 answer
2k views

How to design a worm-gear in FreeCAD?

I want to print worm gears for my robot arm. I would like to design it in FreeCAD. Normally, I would use involute gear for regular gears. However, this tool cannot be used for worm gears. I can't find ...
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