mirror of
https://github.com/DJSundog/NopSCADlib.git
synced 2024-11-30 10:40:03 -05:00
262 lines
9.4 KiB
OpenSCAD
262 lines
9.4 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/>.
|
|
//
|
|
|
|
//
|
|
//! A box made from CNC cut panels butted together using printed fixing blocks. Useful for making large
|
|
//! boxes with minimal 3D printing. More blocks are added as the box gets bigger.
|
|
//!
|
|
//! Needs to be ```include```d rather than ```use```d to allow the panel definitions to be overridden to add holes
|
|
//! and mounted components.
|
|
//!
|
|
//! A list specifies the internal dimensions, screw type, top, bottom and side sheet types and the block
|
|
//! maximum spacing.
|
|
//!
|
|
//! Uses [fixing blocks](#fixing_block) and [corner blocks](#corner_block).
|
|
//
|
|
|
|
use <fixing_block.scad>
|
|
use <corner_block.scad>
|
|
use <../utils/maths.scad>
|
|
|
|
function bbox_screw(type) = type[0]; //! Screw type for corner blocks
|
|
function bbox_sheets(type) = type[1]; //! Sheet type for the sides
|
|
function bbox_base_sheet(type)= type[2]; //! Sheet type for the base
|
|
function bbox_top_sheet(type) = type[3]; //! Sheet type for the top
|
|
function bbox_span(type) = type[4]; //! Maximum span between fixing blocks
|
|
function bbox_width(type) = type[5]; //! Internal width
|
|
function bbox_depth(type) = type[6]; //! Internal depth
|
|
function bbox_height(type) = type[7]; //! Internal height
|
|
|
|
module bbox_shelf_blank(type) { //! 2D template for a shelf
|
|
dxf("bbox_shelf");
|
|
|
|
sheet_2D(bbox_sheets(type), bbox_width(type), bbox_depth(type), 1);
|
|
}
|
|
|
|
function corner_block_positions(type) = let(
|
|
width = bbox_width(type),
|
|
depth = bbox_depth(type),
|
|
height = bbox_height(type)
|
|
)
|
|
[for(corner = [0 : 3], z = [-1, 1])
|
|
let(
|
|
x = [-1,1,1,-1][corner],
|
|
y = [-1,-1,1,1][corner]
|
|
) translate([x * (width / 2), y * (depth / 2), z * height / 2]) *
|
|
rotate([z > 0 ? 180 : 0, 0, corner * 90 + (z > 0 ? 90 : 0)])
|
|
|
|
];
|
|
|
|
module corner_block_positions(type) {
|
|
bt = sheet_thickness(bbox_base_sheet(type));
|
|
tt = sheet_thickness(bbox_top_sheet(type));
|
|
for(p = corner_block_positions(type))
|
|
let($thickness = transform([0, 0, 0], p).z > 0 ? tt : bt)
|
|
multmatrix(p)
|
|
children();
|
|
}
|
|
|
|
function corner_holes(type) = [for(p = corner_block_positions(type), q = corner_block_holes(bbox_screw(type))) p * q];
|
|
|
|
function fixing_block_positions(type) = let(
|
|
width = bbox_width(type),
|
|
depth = bbox_depth(type),
|
|
height = bbox_height(type),
|
|
span = bbox_span(type),
|
|
wspans = floor(width / span),
|
|
wspan = width / (wspans + 1),
|
|
dspans = floor(depth / span),
|
|
dspan = depth / (dspans + 1),
|
|
hspans = floor(height / span),
|
|
hspan = height / (hspans + 1)
|
|
)
|
|
[
|
|
for(i = [0 : 1 : wspans - 1], y = [-1, 1], z = [-1, 1])
|
|
translate([(i - (wspans - 1) / 2) * wspan, y * depth / 2, z * height / 2]) *
|
|
rotate([0, z * 90 + 90, y * 90 + 90]),
|
|
|
|
for(i = [0 : 1 : dspans - 1], x = [-1, 1], z = [-1, 1])
|
|
translate([x * width / 2, (i - (dspans - 1) / 2) * dspan, z * height / 2]) *
|
|
rotate([0, z * 90 + 90, x * 90]),
|
|
|
|
for(i = [0 : 1 : hspans - 1], x = [-1, 1], y = [-1, 1])
|
|
translate([x * width / 2, y * depth / 2, (i - (hspans - 1) / 2) * hspan]) *
|
|
rotate([y > 0 ? 180 : 0, x * y * 90]),
|
|
|
|
];
|
|
|
|
function side_holes(type) = [for(p = fixing_block_positions(type), q = fixing_block_holes(bbox_screw(type))) p * q];
|
|
|
|
module fixing_block_positions(type) {
|
|
t = sheet_thickness(bbox_sheets(type));
|
|
bt = sheet_thickness(bbox_base_sheet(type));
|
|
tt = sheet_thickness(bbox_top_sheet(type));
|
|
h = bbox_height(type) / 2 - 1;
|
|
for(p = fixing_block_positions(type))
|
|
let(z = transform([0, 0, 0], p).z, $thickness = z > h ? tt : z < -h ? bt : t)
|
|
multmatrix(p)
|
|
children();
|
|
}
|
|
|
|
module drill_holes(type, t)
|
|
for(list = [corner_holes(type), side_holes(type)], p = list)
|
|
let(q = t * p)
|
|
if(abs(transform([0, 0, 0], q).z) < eps)
|
|
multmatrix(q)
|
|
drill(screw_clearance_radius(bbox_screw(type)), 0);
|
|
|
|
module bbox_base_blank(type) { //! 2D template for the base
|
|
dxf("bbox_base");
|
|
|
|
difference() {
|
|
sheet_2D(bbox_base_sheet(type), bbox_width(type), bbox_depth(type), 1);
|
|
|
|
drill_holes(type, translate(bbox_height(type) / 2));
|
|
}
|
|
}
|
|
|
|
module bbox_top_blank(type) { //! 2D template for the top
|
|
dxf("bbox_top");
|
|
|
|
t = sheet_thickness(bbox_sheets(type));
|
|
|
|
difference() {
|
|
translate([0, t / 2])
|
|
sheet_2D(bbox_top_sheet(type), bbox_width(type) + 2 * t, bbox_depth(type) + t);
|
|
|
|
drill_holes(type, translate(-bbox_height(type) / 2));
|
|
}
|
|
}
|
|
|
|
module bbox_left_blank(type) { //! 2D template for the left side
|
|
dxf("bbox_left");
|
|
|
|
t = sheet_thickness(bbox_sheets(type));
|
|
bb = sheet_thickness(bbox_base_sheet(type));
|
|
|
|
difference() {
|
|
translate([-t / 2, -bb / 2])
|
|
sheet_2D(bbox_sheets(type), bbox_depth(type) + t, bbox_height(type) + bb);
|
|
|
|
drill_holes(type, rotate([0, 90, 90]) * translate([bbox_width(type) / 2, 0]));
|
|
}
|
|
}
|
|
|
|
module bbox_right_blank(type) { //! 2D template for the right side
|
|
dxf("bbox_right");
|
|
|
|
t = sheet_thickness(bbox_sheets(type));
|
|
bb = sheet_thickness(bbox_base_sheet(type));
|
|
|
|
difference() {
|
|
translate([t / 2, -bb / 2])
|
|
sheet_2D(bbox_sheets(type), bbox_depth(type) + t, bbox_height(type) + bb);
|
|
|
|
drill_holes(type, rotate([0, -90, 90]) * translate([-bbox_width(type) / 2, 0]));
|
|
}
|
|
}
|
|
|
|
module bbox_front_blank(type) { //! 2D template for the front
|
|
dxf("bbox_front");
|
|
|
|
t = sheet_thickness(bbox_sheets(type));
|
|
bb = sheet_thickness(bbox_base_sheet(type));
|
|
bt = sheet_thickness(bbox_top_sheet(type));
|
|
|
|
difference() {
|
|
translate([0, (bt - bb) / 2])
|
|
sheet_2D(bbox_sheets(type), bbox_width(type) + 2 * t, bbox_height(type) + bb + bt);
|
|
|
|
drill_holes(type, rotate([-90, 0, 0]) * translate([0, bbox_depth(type) / 2]));
|
|
}
|
|
}
|
|
|
|
module bbox_back_blank(type) { //! 2D template for the back
|
|
dxf("bbox_back");
|
|
|
|
bb = sheet_thickness(bbox_base_sheet(type));
|
|
t = sheet_thickness(bbox_sheets(type));
|
|
|
|
difference() {
|
|
translate([0, -bb / 2])
|
|
sheet_2D(bbox_sheets(type), bbox_width(type), bbox_height(type) + bb);
|
|
|
|
drill_holes(type, rotate([90, 0, 0]) * translate([0, -bbox_depth(type) / 2]));
|
|
}
|
|
}
|
|
|
|
module bbox_base(type) render_2D_sheet(bbox_base_sheet(type)) bbox_base_blank(type); //! Default base, can be overridden to customise
|
|
module bbox_top(type) render_2D_sheet(bbox_top_sheet(type)) bbox_top_blank(type); //! Default top, can be overridden to customise
|
|
module bbox_back(type) render_2D_sheet(bbox_sheets(type)) bbox_back_blank(type); //! Default back, can be overridden to customise
|
|
module bbox_front(type) render_2D_sheet(bbox_sheets(type)) bbox_front_blank(type); //! Default front, can be overridden to customise
|
|
module bbox_left(type) render_2D_sheet(bbox_sheets(type)) bbox_left_blank(type); //! Default left side, can be overridden to customise
|
|
module bbox_right(type) render_2D_sheet(bbox_sheets(type)) bbox_right_blank(type); //! Default right side, can be overridden to customise
|
|
|
|
module _bbox_assembly(type, top = true, base = true, left = true, right = true, back = true, front = true) //! The box assembly, wrap with a local copy without parameters
|
|
assembly("bbox") {
|
|
width = bbox_width(type);
|
|
depth = bbox_depth(type);
|
|
height = bbox_height(type);
|
|
echo("Box:", width, depth, height);
|
|
|
|
t = sheet_thickness(bbox_sheets(type));
|
|
bt = sheet_thickness(bbox_base_sheet(type));
|
|
tt = sheet_thickness(bbox_top_sheet(type));
|
|
|
|
corner_block_positions(type)
|
|
fastened_corner_block_assembly(t, bbox_screw(type), $thickness);
|
|
|
|
fixing_block_positions(type)
|
|
fastened_fixing_block_assembly(t, bbox_screw(type), thickness2 = $thickness);
|
|
|
|
for(x = [-1, 1])
|
|
translate([x * (width / 2 + t / 2 + eps + 25 * exploded()), 0])
|
|
rotate([90, 0, x * 90])
|
|
if(x > 0) {
|
|
if(right)
|
|
bbox_right(type);
|
|
}
|
|
else
|
|
if(left)
|
|
bbox_left(type);
|
|
|
|
for(y = [-1, 1])
|
|
translate([0, y * (depth / 2 + t / 2 + eps + 25 * exploded())])
|
|
rotate([90, 0, y * 90 + 90])
|
|
if(y < 0) {
|
|
if(front)
|
|
bbox_front(type);
|
|
}
|
|
else
|
|
if(back)
|
|
bbox_back(type);
|
|
|
|
for(z = [-1, 1]) {
|
|
sheet_thickness = z > 0 ? tt : bt;
|
|
translate_z(z * (height / 2 + sheet_thickness / 2 + eps + 100 * exploded()))
|
|
if(z > 0) {
|
|
if(top)
|
|
bbox_top(type);
|
|
}
|
|
else
|
|
if(base)
|
|
bbox_base(type);
|
|
}
|
|
}
|