A sketch is a diagram describing a profile to be applied to a feature in order to produce a shape. We will now trace the sketch which defines the general shape of the part. Select Rename and type a name, for example "Body part1" and press Enter to validate. In the Model tree, click on the Body with the right mouse button. Click again on the arrow or plus sign in front of Origin to collapse its content in the Model tree.īefore we continue, let's take the opportunity to rename the Body. Press the spacebar again to hide its content in the 3D view. You can make Origin's content visible in the 3D view by selecting Origin and pressing the spacebar on your keyboard. The Origin is greyed out, which indicates that its content is not visible in the 3D view. The newly created active Body with its content expanded. It reveals the aforementioned reference axes and planes as shown in the image below: In front of this Origin is also an arrow or plus sign. At this point, it only contains an element labelled Origin. Clicking on the arrow or plus sign in front of Body expands its content. In front of the Body label, there is a blue icon identical to the one above, and an arrow or a plus sign, depending on your operating system. If it's not highlighted, double-click it or right-click and select Toggle active body in the contextual menu. It will be highlighted in light blue in the Model tree, which means that it is active, that is to say that we can edit the elements it contains as well as add new elements to it. It contains its own reference axes and planes. The Body is a container in which Part Design features are sequentially arranged to form a single solid. In the Model tab under the Combo View sidebar, a new object labelled "Body" appears under the document label, which is currently "Unnamed" since we haven't saved our document yet. Note: do not confuse the Body, which icon is blue, with the Part container which icon is yellow. FreeCAD will start with toolbars at the top, the combo view to the left and the 3D view at the right. Using Part Design workbench, tracing the sketchĬreate a new document and switch to the Part Design workbench using either the workbench selector (labelled 10 in the linked image) or by going to the View → Workbench menu. Using external geometry feature and using a reference plane to centre a hole.Displaying reference dimensions in the sketch.Using Part Design workbench, tracing the sketch.We will cover in this tutorial in particular: This tutorial aims to teach FreeCAD beginners a few basic features through an example.Īfter covering the basics in the User hub, you will be able to model a first part step by step. Add edge fillets to finalise the part.Creating a simple part with Part WB, Creating a simple part with Draft and Part WB Use the Polar Pattern function on the newly created pocket with an angle of 360° (default) and a number of occurrences of 3.ĩ. Create the sketch below with the Arc and External Geometry functions. To keep the holes open, create a Pocket by selecting the circular faces at the bottom of the holesĨ. The triangle will then need to be connected to the construction circle and an arc constraint created as shown below.ħ. In a new sketch, create a triangle with rounded edges using the Fillet function. Click on the top face and use the Thickness function with the following settings: Layer (default setting), Intersection (to keep sharp edges) and Generate thickness inwards (to shift the faces inwards).Ħ. Apply the Pocket function "Through All".ĥ. Add diameter constraints of 35 mm on the sketch circles and 75 mm on the construction circle.Ĥ. Create three circles of the same diameter, equidistant and centred around the axis of the cylinder following this steps :Ī) Activate Construction Mode and select Polygon → Triangle to make a construction triangle centred on the cylinder axis.ī) Place a horizontality constraint to align the height of the triangle with the marker.Ĭ) Turn off Construction Mode and then create three circles coincident with the vertices of the triangle.ĭ) Create an Equality constraint between the three circles.ģ. Create a cylinder with a diameter of 150 mm and a height of 20 mm with the functions Circle (coincident with the centre of the marker) and Pad.Ģ. We will model the part illustrated below by the method proposed in the tree structure.įor the dimensions of the part you can refer to the drawing below but they will be repeated in the modelling procedure.ġ. This tutorial introduces the Construction Mode for constraining sketch geometry and also new features: Polygon, Equal and Fillet (in Sketcher) then Thickness and Polar Pattern (in Part Design).
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