For lasser cutting it is highly recommended the use of polylines against line segments, arc segments, circles, ellipses, splines or any other curve, because the laser cutting machine can generally manufacture pieces much faster implemented with polylines than with the other curves. They are usually written with the following notation in the console:įor instance, coordinate (40,30) is located 40 units to the right of the origin and 30 units above the origin.Ĭartesian coordinates can be also be referred to be relative to some specific point, different from the origin, which can be specified in the console with the following point (40,30) relative to the point (10,20) can be expressed as we will explain some few commands which will help us to generate basic designs in QCAD. If we want to introduce an absolute coordinate in QCAD, we must indicate the X and Y coordinates separated with a colon “,”. All absolute values are referred to the drawing origin shon in the following image: QCAD includes a 2D Cartesian coordinate system with absolute and relative values. In particular, since this entry is oriented to serve as a basis for designing 2d drawings for laser cutting, we can use the standard template for laser cutting or create our own layers and assign a different color for each layer as shown: By default, QCAD always has the 0 layer, but we can add more. In the property window, there’s a window with the layers information. Layers allow us to organize information with different properties and they can be easily activated/deactivated. LayersĮvery CAD design is organized in layers. The best place to get some information can be found in with the latest features and also the reference manual. This entry is not intended to be a complete reference manual for QCAD. The console for introducing commands is just below an the design area is in the center of all. On the left there’s a toolbox and a set of property windows on the right. QCAD is a CAD (Computed Aided Design) software which includes a menu bar on top with an icon bar just below the menu bar. In this entry, we will show how to use some of the basic features of QCAD in order to create 2D designs which can be used for laser cutting.
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