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45 lines
1.8 KiB
OpenSCAD
45 lines
1.8 KiB
OpenSCAD
//
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// NopSCADlib Copyright Chris Palmer 2018
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// nop.head@gmail.com
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// hydraraptor.blogspot.com
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//
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// This file is part of NopSCADlib.
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//
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// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
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// GNU General Public License as published by the Free Software Foundation, either version 3 of
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// the License, or (at your option) any later version.
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//
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// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along with NopSCADlib.
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// If not, see <https://www.gnu.org/licenses/>.
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//
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//! Round 2D shapes uisng `offset()`, which is fast and 3D shapes with [`offset_3D()`](#offset), which is very slow.
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//!
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//! A single radius can be specified or separate internal and external radii.
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//! If `chamfer_base` is `true` for `round_3D()` then the bottom edge is made suitable for 3D printing by chamfering once the
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//! the angle gets shallower than 45 degrees.
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include <../core.scad>
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use <offset.scad>
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module round(r, ir = undef, or = undef) { //! Round a 2D child, single radius or separate inside and outside radii
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IR = is_undef(ir) ? r : ir;
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OR = is_undef(or) ? r : or;
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offset(OR)
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offset(-OR -IR)
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offset(IR)
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children();
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}
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module round_3D(r, ir = undef, or = undef, chamfer_base = false) { //! Round a 3D child single radius or separate inside and outside radii
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IR = is_undef(ir) ? r : ir;
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OR = is_undef(or) ? r : or;
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offset_3D(OR, chamfer_base)
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offset_3D(-OR -IR, chamfer_base)
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offset_3D(IR, chamfer_base)
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children();
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}
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