You work with primitive shapes like cubes, cylinders, spheres and cones to construct your geometry by combining them, subtracting one shape from the other, or intersecting them. There is also a detailed explanation (in the context of FreeCAD) of Constructive_solid_geometry on the wiki. The first (and basic) technique of solid modeling is Constructive Solid Geometry (CSG).
Save your work often, from time to time save your work under a different name, so you have a "safe" copy to fall back to, and be prepared to the possibility that some commands might not give you the expected results.
FREECAD LESSONS HOW TO
Don't hesitate to allow 2 or 3 backup files until you know well how to deal with FreeCAD. The number of those backup files can be specified in the preferences dialog. FreeCAD now has the ability to save backup files. Keep in mind that FreeCAD is still in an early stage of development, so you might not be as productive as with another CAD application, and you will certainly encounter bugs, or experience crashes. This tutorial was written with version 0.15 of FreeCAD. One thing to know is that FreeCAD is modular by design, and like for many other CAD software, there are always more than one way to do things. This Basic Modeling Tutorial will show you how to model an iron angle. 4 1st Method - By Constructive Solid Geometry.Sweeping result will be shown on 3D view. Dialog for sweepingĬlick Object button below "Path to sweep along" and select the sweep path sketch (Sketch001) on 3D view. Select the profile sketch (Sketch002) in model tree and execute Additive Pipe (sweeping) to show the dialog. Sweeping the profile of handle to create solid.So the sketch of the handle profile has beeen drawn. Then click Close on Task tab to finish sketch edit.Īfter finishing sketch edit, select the sketch (Sketch002) in model tree and change Z coordinate of "Attachment Offset" - "Position" property on Data tab to 50 mm to offset it. The sketch will be fully contained and be displayed with green lines. Select a upper left point of the sketch and execute lock constarint to constarin the coordinate to (77.5mm, 2.5mm). Select the top side arc of the slot and constarin the radius to 5 mm. So the centers of the slot will be constrained symmetrical with the horizontal axis as a line of symmetry. Select 2 centers of the slot and horizontal axis of the sketch plane then execute symmetric constraint. Select slot and select 2 points to draw a slot. When sketch editing mode starts, check "Auto Remove Redundants" on dialog to enable redundant elements removing. Click OK to create a sketch plane.ĭialog for creating a sketch plane Sketch plane On the creating sketch plane dialog, select XY-plane as a sketch orientation. Creating a sketch plane for a profile of the handleĪt first select "body" in model tree and create a new sketch plane.Then click Close on Task tab to finish sketch edit. When both corner radii were constrained, the sketch will be fully contained and be displayed with green lines. Select fillet of each corner and execute radius constraint to constrain a corner radius to 10 mm. Constraining the horizontal/vertical dimension Similarly, select the edge on right side and execute verical dimension constraint to constrain the dimension to 25 mm. Select the edge on top side and execute horizontal dimension constraint to constrain the dimension to 30 mm. Create fillets on both corners and click mouse right button to finish the operation. Select fillet and click 2 edges of a corner to create fillet. Constraining the edges to horizontal/vertical And select the edge of polyline on the right side and constrain to vertical. Select the edge of polyline on the top side and constrain to horizontal. Constraining the coordinate of end point on the bottom side Similarly, click an end point of the polyline on the bottom side and execute lock constraint. Constraining the coordinate of end point on the top side Drawing a sketch of a handleĬlick an end point of the polyline on the top side and execute lock constraint. Click mouse right button to finish drawing. Select the polyline and click 4 points to draw a sketch of a handle. Creating a sketch plane for the handle shape.Ĭreate a new sketch plane and select XZ-Plane in the dialog.
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