OpenSCAD教程之"创建基本3D物体" | OpenSCAD tutorial -- Create Primitive Solids

azcax (42)in #utopian-io • 7 years ago (edited)

Summary: OpenSCAD (version 2015.03-2) is the open source software for creating solid 3D CAD models. It is available for Linux/UNIX, Windows and Mac OS X, and it is a programming Solid 3D CAD Modeller. In this tutorial I will show you how to create Primitive Solids.
The Primitive Solids include cube, sphere, cylinder and polyhedron, let's start...

1）方块（cube）

创建方块有2中语法，如下：
cube(size = [x,y,z], center = true/false);
cube(size = x , center = true/false);

size指定方块的边长，center指定正方体的中心是否位于座标原点。如下图：

1.1）创建正方体：cube(size = x , center = true/false);

图片.png

1.2）创建边长不一样的长方体：cube(size = [x,y,z], center = true/false);

图片.png

2）球体（sphere）

创建球体可以指定半径或者直径，语法如下：
sphere(r = x);
sphere(d = x);

指定半径创建：
图片.png

指定直径创建：
图片.png

3）圆柱（锥，台）体（cylinder）

语法如下，当r1=r2的时候，是圆柱体；r1或者r2一个为0的时候是圆锥体；r1和r2都不为0，并且不相等的时候为圆台体；center指定物体的中心是否位于座标原点。

cylinder(h = height, r1 = BottomRadius, r2 = TopRadius, center = true/false);

圆柱体：

图片.png

圆锥体：

图片.png

圆台体：

图片.png

通过指定内置参数$fn的数值，可以创建棱柱，棱锥和棱台体：

图片.png

4）多面体（polyhedron）

语法如下，points指定多面体的顶点座标集，faces指定多面体每个面上顶点的索引，convexity指定在预览模式下与射线相交的最大面数。

polyhedron( points = [ [X0, Y0, Z0], [X1, Y1, Z1], ... ], faces = [ [P0, P1, P2, P3, ...], ... ], convexity = N);

比如下面用多面体的方法创建长方体：

图片.png

Posted on Utopian.io - Rewarding Open Source Contributors

#cad #model #3dprint #programming

7 years ago in #utopian-io by azcax (42)

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utopian-io (71) 7 years ago

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