mirror of
https://github.com/DJSundog/NopSCADlib.git
synced 2024-11-27 09:10:02 -05:00
89 lines
3.4 KiB
OpenSCAD
89 lines
3.4 KiB
OpenSCAD
//
|
|
// NopSCADlib Copyright Chris Palmer 2018
|
|
// nop.head@gmail.com
|
|
// hydraraptor.blogspot.com
|
|
//
|
|
// This file is part of NopSCADlib.
|
|
//
|
|
// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
|
|
// GNU General Public License as published by the Free Software Foundation, either version 3 of
|
|
// the License, or (at your option) any later version.
|
|
//
|
|
// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
|
|
// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
// See the GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License along with NopSCADlib.
|
|
// If not, see <https://www.gnu.org/licenses/>.
|
|
//
|
|
|
|
//
|
|
//! Sheet materials. Rectangular with optional rounded corners. Negative radii make a chamfer.
|
|
//!
|
|
//! The "Soft" parameter can be used to determinesif the sheet material needs machine screws or wood screws, e.g.:
|
|
//!
|
|
//! * If soft, wood screws will be used, with a pilot hole.
|
|
//! * If not soft, either tapped holes or a clearance hole and nuts will be used to retain screws.
|
|
//!
|
|
//! The "Color" parameter is a quad-array: [R, G, B, Alpha], or can be a named color, see [OpenSCAD_User_Manual](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/The_OpenSCAD_Language#color).
|
|
//!
|
|
//! For speed sheets should be modelled in 2D by subtracting holes from 2D templates made by ```sheet_2D()``` and then extruded to 3D with ```render_2D_sheet()```.
|
|
//! Note that modules that drill holes will return a 2D object if ```h``` is set to 0 to facilitate this.
|
|
//
|
|
include <../core.scad>
|
|
|
|
function sheet_thickness(type) = type[2]; //! Thickness
|
|
function sheet_colour(type) = type[3]; //! Colour
|
|
function sheet_is_soft(type) = type[4]; //! Is soft enough for wood screws
|
|
|
|
module corner(r) {
|
|
if(r > 0)
|
|
translate([r, -r])
|
|
circle4n(r);
|
|
else
|
|
if(r < 0)
|
|
translate([-r, r])
|
|
rotate(45)
|
|
square(-r * sqrt(2), -r * sqrt(2), center = true);
|
|
else
|
|
translate([0.5, -0.5])
|
|
square(1, center = true);
|
|
}
|
|
|
|
module sheet_2D(type, w, d, corners = [0, 0, 0, 0]) { //! 2D sheet template with specified size and optionally rounded corners
|
|
t = sheet_thickness(type);
|
|
vitamin(str("sheet(", type[0], ", ", w, ", ", d, arg(corners, [0, 0, 0, 0]), "): ", type[1], " ", round(w), "mm x ", round(d), "mm x ", t, "mm"));
|
|
|
|
c = is_list(corners) ? corners : corners * [1, 1, 1, 1];
|
|
|
|
hull() {
|
|
translate([-w/2, d/2])
|
|
corner(c[0]);
|
|
|
|
translate([ w/2, d/2])
|
|
rotate(-90)
|
|
corner(c[1]);
|
|
|
|
translate([ w/2, -d/2])
|
|
rotate(-180)
|
|
corner(c[2]);
|
|
|
|
translate([-w/2, -d/2])
|
|
rotate(-270)
|
|
corner(c[3]);
|
|
}
|
|
}
|
|
|
|
module sheet(type, w, d, corners = [0, 0, 0, 0]) //! Draw speified sheet
|
|
linear_extrude(height = sheet_thickness(type), center = true)
|
|
sheet_2D(type, w, d, corners);
|
|
|
|
module render_sheet(type, color = false) //! Render a sheet in the correct colour after holes have been subtracted
|
|
color(color ? color : sheet_colour(type))
|
|
render() children();
|
|
|
|
module render_2D_sheet(type, color = false) //! Extrude a 2D sheet template and give it the correct colour
|
|
color(color ? color : sheet_colour(type))
|
|
linear_extrude(height = sheet_thickness(type), center = true)
|
|
children();
|