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Merge pull request #10 from martinbudden/extrusions

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Initial submission of E2020 aluminium extrusion.
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Chris 2020-01-10 19:32:49 +00:00 committed by GitHub
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5 changed files with 200 additions and 1 deletions
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1
lib.scad
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@ -62,6 +62,7 @@ include <vitamins/spools.scad>
include <vitamins/mains_sockets.scad>
include <vitamins/ldrs.scad>
include <vitamins/geared_steppers.scad>
include <vitamins/extrusions.scad>
use <vitamins/jack.scad>
use <vitamins/meter.scad>

7
libtest.scad
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@ -32,6 +32,7 @@ use <tests/cable_strips.scad>
use <tests/components.scad>
use <tests/d_connectors.scad>
use <tests/displays.scad>
use <tests/extrusions.scad>
use <tests/fans.scad>
use <tests/fuseholder.scad>
use <tests/geared_steppers.scad>
@ -152,7 +153,7 @@ leadnuts_y = pillars_y + 40;
pulleys_y = leadnuts_y +40;
hot_ends_y = pulleys_y + 60;
linear_bearings_y = hot_ends_y + 50;
sheets_y = linear_bearings_y + 50;
sheets_y = linear_bearings_y + 100;
pcbs_y = sheets_y + 40;
displays_y = pcbs_y + 150;
fans_y = displays_y + 100;
@ -203,6 +204,10 @@ translate([x0, linear_bearings_y]) {
rods();
}
translate([x0+120, linear_bearings_y+30]) {
extrusions();
}
translate([x0 + 10, hot_ends_y])
hot_ends();

30
tests/extrusions.scad Normal file
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@ -0,0 +1,30 @@
//
// NopSCADlib Copyright Chris Palmer 2020
// 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/>.
//
include <../core.scad>
use <../utils/layout.scad>
include <../vitamins/extrusions.scad>
module extrusions()
layout([for(e = extrusions) extrusion_width(e)], 10)
extrusion(extrusions[$i], 80);
if ($preview)
extrusions();

128
vitamins/extrusion.scad Normal file
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@ -0,0 +1,128 @@
//
// NopSCADlib Copyright Chris Palmer 2020
// 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/>.
//
//! Aluminium extrusion.
//
include <../core.scad>
function extrusion_width(type) = type[1]; //! Width of extrusion
function extrusion_height(type) = type[2]; //! Height of extrusion
function extrusion_center_hole(type) = type[3]; //! Diameter of center hole
function extrusion_corner_hole(type) = type[4]; //! Diameter of corner hole
function extrusion_center_square(type) = type[5]; //! Size of center square
function extrusion_channel_width(type) = type[6]; //! Channel width
function extrusion_channel_width_internal(type) = type[7]; //! Internal channel width
function extrusion_tab_thickness(type) = type[8]; //! Tab thickness
function extrusion_spar_thickness(type) = type[9]; //! Spar thickness
function extrusion_fillet(type) = type[10]; //! Radius of corner fillet
module extrusion_cross_section(type, cornerHole) {
module extrusion_corner(type, cornerHole) {
width = extrusion_width(type);
tabThickness = extrusion_tab_thickness(type);
sparThickness = extrusion_spar_thickness(type);
centerSquare = extrusion_center_square(type);
channelWidth = extrusion_channel_width(type);
fillet = extrusion_fillet(type);
cornerSize = (width-channelWidth)/2;
cornerSquare = (width-extrusion_channel_width_internal(type))/2;
cornerHoleDiameter =extrusion_corner_hole(type);
translate([-width/2,-width/2]) {
difference() {
union() {
translate([fillet,0])
square([cornerSize-fillet,tabThickness]);
translate([0,fillet])
square([tabThickness,cornerSize-fillet]);
translate([fillet,fillet])
circle(fillet);
translate([fillet,fillet])
square([cornerSquare-fillet,cornerSquare-fillet]);
}
if(cornerHole)
translate([cornerSquare/2,cornerSquare/2])
circle(d=cornerHoleDiameter);
}
}
rotate(-135) translate([centerSquare/2,-sparThickness/2]) square([sqrt(2)*(width-centerSquare-cornerSquare)/2,sparThickness]);
}
module extrusion_center_section(type) {
width = extrusion_width(type);
tabThickness = extrusion_tab_thickness(type);
sparThickness = extrusion_spar_thickness(type);
centerSquare = extrusion_center_square(type);
channelWidth = extrusion_channel_width(type);
translate([0,width/2])
for(angle=[225,315])
rotate(angle)
translate([centerSquare/2,-sparThickness/2])
square([sqrt(2)*(width-centerSquare)/2,sparThickness]);
translate([0,-width/2])
for(angle=[45,135])
rotate(angle)
translate([centerSquare/2,-sparThickness/2])
square([sqrt(2)*(width-centerSquare)/2,sparThickness]);
centerHeight = width-channelWidth;
translate([-width/2,-centerHeight/2])
square([tabThickness,centerHeight]);
translate([width/2-tabThickness,-centerHeight/2])
square([tabThickness,centerHeight]);
}
centerSquare = extrusion_center_square(type);
width = extrusion_width(type);
height = extrusion_height(type);
count = (height-width)/width;
for(i=[0:count])
translate([0,i*width+(width-height)/2])
difference() {
square([centerSquare,centerSquare],center=true);
circle(d=extrusion_center_hole(type));
}
translate([0,(width-height)/2])
for(angle=[0,90])
rotate(angle)
extrusion_corner(type, cornerHole);
translate([0,-(width-height)/2])
for(angle=[180,270])
rotate(angle)
extrusion_corner(type, cornerHole);
if(count>=1)
for(i=[1:count])
translate([0,i*width-height/2])
extrusion_center_section(type);
}
module extrusion(type, length, cornerHole = false) { //! Draw the specified extrusion
vitamin(str("extrusion(", type[0], ", ", length, "): Extrusion ", type[0], " x ", length, "mm"));
color(grey90)
linear_extrude(height = length)
extrusion_cross_section(type, cornerHole);
}

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vitamins/extrusions.scad Normal file
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@ -0,0 +1,35 @@
//
// NopSCADlib Copyright Chris Palmer 2020
// 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/>.
//
//
// Extrusion
//
// W H d1 d2 s cw cwi t st f
E2020 = [ "E2020", 20, 20, 4.2, 0, 8, 6, 12.0, 2, 2, 1 ];
E2040 = [ "E2040", 20, 40, 4.2, 0, 8, 6, 12.0, 2, 2, 1 ];
E2060 = [ "E2060", 20, 60, 4.2, 0, 8, 6, 12.0, 2, 2, 1 ];
E2080 = [ "E2080", 20, 80, 4.2, 0, 8, 6, 12.0, 2, 2, 1 ];
E3030 = [ "E3030", 30, 30, 6.8, 4.2, 12, 8, 16.5, 2, 2, 1 ];
E3060 = [ "E3060", 30, 60, 6.8, 4.2, 12, 8, 16.5, 2, 2, 1 ];
E4040 = [ "E4040", 40, 40, 10.5, 6.0, 15, 10, 20.0, 5.5, 3, 1 ];
E4080 = [ "E4080", 40, 80, 10.5, 6.0, 15, 10, 20.0, 5.5, 3, 1 ];
extrusions = [E2020,E2040,E2060,E2080,E3030,E3060,E4040,E4080];
use <extrusion.scad>