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When you have created new sketches you can use the Push/Pull feature to extrude or cut through the model.ģ. You can also use the pencil or one of its shapes to create new sketches to extrude.Ģ. Use the Eraser to remove the edges of the triangles so you end up with a rectangle to extrude. Browse for the object you want to open and import it. When you have the plugin installed go to File > Import… and set the file type to STL files.

Start SketchUp and click on Window > Extension Warehouse.

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To import STL files in SketchUp Make you need to install a plugin first (this plugin is already installed in the Pro edition). Step 1: Install the STL plugin in SketchUp You can download the free SketchUpMake edition from their official website. By installing different plugins you can adjust SketchUp up to your personal preference. SketchUp is available as a commercial version called SketchUp Pro and as the free SketchUp Make edition.

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SketchUp – formerly Google SketchUp – is a full-blown 3D modeling software that is now owned by architectural company Trimble Buildings. Sculpting a model in FreeCAD is very difficult as FreeCAD lacks a free move-around 3D view, sculpting is nearly impossible. This is great when you want to construct technical objects. It is a CAD program to create exact and models for mechanical use not for modeling. When using FreeCAD as an STL editor you really notice its purpose. Then click on File> Export and select Mesh formats. To export your object as an STL file again, select the last feature in the model tree. You can use the Pad tool to extrude or the Pocket tool to cut elements. If you want to edit the sketch, double-click it in the model tree.Ħ. Create a shape you want to extrude or cut into using the tools for drawing a circle, rectangle or lines.ĥ. Click on any face you want to add or remove material, so it shines green.Ĥ. You now have a solid object of your mesh file ready for editing. You will not notice anything because the shape is overlapping the solid. Now click on any triangle forming your imported object and then on Create. Click Advanced utility to create shapes and select Solid from shell.

This will show you the shape of your imported object consisting of many triangles.ħ. You can now delete or hide the imported mesh. If the number gets smaller, it will take longer to convert the object.Ħ. You can adjust the precision of tessellation, but 0.10 is perfectly fine for most objects. This will split up the imported object into many small triangles. Now click on Part > Create shape from mesh. Select the imported object in the Model window.ĥ. FreeCAD can open other mesh formats such as OBJ and AST as well.Ĥ.

Click File > Import and select the object you want to modify.

Open FreeCAD and create a new document by clicking on File > New.

Simply select the correct version for your OS and install.Ī serious limitation: FreeCAD has some problems with intercepting structures and may mess up the mesh, when it contains intercepting edges! Step 1: Open STL file and convert it to solid model

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You can download FreeCAD for free from the FreeCAD project website. It offers many different tools for construction, like Drafts, Drawings and Design features. In fact, mesh editors are excellent tools when it comes to editing STL files.įreeCAD is an open source and free to use CAD software. This may cause paper-thin walls in 3D printing, which can result in troubles, if the object is not solidified (which, however, can easily be done in tools such as Meshmixer). That means: These objects have just a shell and no filling.

On the other hand, there are mesh editing tools such as MeshMixer and MeshLab that are designed for modeling, animation, and objects represented by a 2D surface.

Three of the four tools we present in ths article are true CAD tools: FreeCAD, SketchUp and Blender.

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So CAD tools cannot show their full strength when editing STL files, nevertheless, they can be used for working with STL files. In CAD software, circles for example are “real” circles in 3D printing – and in STL files for 3D printing – circles are represented as polygons. These tools were not made for 3D printing in the first place. On the one hand, there is CAD software (Computer Aided Design), which is designed for construction, exact measurements and solid modeling.

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But what if an STL file you downloaded lacks some features, is damaged or you need only a part from it? That’s when you need an STL editor. We show you how to edit an STL file with 5 free STL editors: FreeCAD, SketchUp, Blender, Meshmixer and Meshlab.Įditing STL files can be done in two different types of modeling software: After all: Ready-made STL files are fine. How do I edit STL files? That is something any 3D printer owner sooner or later wonders.