From 4c2d7bc73e8b460015b47f5835f09f90e702cd3b Mon Sep 17 00:00:00 2001
From: Jochen Vothknecht <jochen3120@gmail.com>
Date: Fri, 18 Mar 2022 08:24:22 +0100
Subject: [PATCH] Integrating the ingenious concept of design parameterization
from openscad-meistern.de
---
cad/CyanStripe/Case.scad | 18 +++++-----
cad/CyanStripe/PCB.scad | 76 ++++++++++++++++++++++++----------------
2 files changed, 54 insertions(+), 40 deletions(-)
diff --git a/cad/CyanStripe/Case.scad b/cad/CyanStripe/Case.scad
index 494fc8e..dfe891a 100644
--- a/cad/CyanStripe/Case.scad
+++ b/cad/CyanStripe/Case.scad
@@ -13,8 +13,8 @@ $E = 0.001; // ε
plexi = 3;
// c = case
-c_sx = pcb_w() + 0;
-c_sy = pcb_h() + 0;
+c_sx = PCB("pcb_sx") + 0;
+c_sy = PCB("pcb_sy") + 0;
c_sz = 20;
c_fs = 15; // frontSpace = pcb to upper plexi
@@ -22,15 +22,15 @@ c_fs = 15; // frontSpace = pcb to upper plexi
module frontPlexiOutline() {
/* pcbScrewHoles()
- circle(d=M3()*2); */
+ circle(d=PCB("M3")*2); */
- txy = sc_left_off()+M3();
+ txy = PCB("sc_left_off")+PCB("M3");
- translate([-pcb_w()/2, -pcb_h()/2])
- mixedRoundRect(txy, txy, [0, pcb_edge_r(), 0, M3()]);
+ translate([-PCB("pcb_sx")/2, -PCB("pcb_sy")/2])
+ mixedRoundRect(txy, txy, [0, PCB("pcb_edge_r"), 0, PCB("M3")]);
- translate([-pcb_w()/2, pcb_h()/2 - txy])
- mixedRoundRect(txy, txy, [pcb_edge_r(), 0, M3(), 0]);
+ translate([-PCB("pcb_sx")/2, PCB("pcb_sy")/2 - txy])
+ mixedRoundRect(txy, txy, [PCB("pcb_edge_r"), 0, PCB("M3"), 0]);
}
@@ -54,7 +54,7 @@ if ($preview) {
pcb3D();
- translate([0, 0, pcb_t()*3])
+ translate([0, 0, PCB("pcb_t")+aj_h()])
frontPlexi();
} else if ($part == "CoverGlass") {
diff --git a/cad/CyanStripe/PCB.scad b/cad/CyanStripe/PCB.scad
index e7ceab4..09d778b 100644
--- a/cad/CyanStripe/PCB.scad
+++ b/cad/CyanStripe/PCB.scad
@@ -10,14 +10,40 @@ $E = 0.01; // ε
// note: using constant functions here because they get imported via `use`
-function pcb_t() = 1.6;
+// exporting *everything* as a constant function is bad.
+// taking the ingenious concept from `Project 4` of the book from openscad-meistern.de
+
+pcb_data = [
+
+ ["pcb_t", 1.6],
+ ["pcb_sx", 75.5],
+ ["pcb_sy", 65.0],
+
+ ["pcb_edge_r", 3.0],
+
+ ["M3", 3.2],
+
+ // LED terminal data
+ ["tled_x", 5.75 + 23],
+ ["tled_y", [-18.5, 0, 18.5]],
+
+ // co = cut-out
+ ["co_w", 6.1],
+ ["co_h", 18.0],
+ ["co_x", -34.7],
+ ["co_y", -8.6],
+
+
+ ["sc_left_off", 5.0], // left side screw holes offset from edge
+
+
+];
+
+function PCB(key) = [ for (d=pcb_data) if (d[0] == key) d[1] ][0];
+
-function pcb_w() = 75.5;
-function pcb_h() = 65.0;
-function pcb_edge_r() = 3;
-function M3() = 3.2;
// x is all the same and y is +- 18.5 and 0 as there are three of them
function terminals_x() = 28.75;
@@ -30,18 +56,6 @@ function tpow_y() = 14.50;
// function tpow_sy() = 11.50;
// function tpow_sz() = 3.00; // TODO: measure!!
-tled_y = [18.5, 0, -18.5];
-function tled_x() = 5.75 + 23;
-function tled_y(i) = tled_y(i);
-
-function sc_left_off() = 5.0; // left side screw holes offset from edge
-
-// co = cut-out
-co_w = 6.1;
-co_h = 18.0;
-co_x = -34.7;
-co_y = -8.6;
-
module pcbScrewHoles(tz=0) {
@@ -53,17 +67,17 @@ module pcbScrewHoles(tz=0) {
module pcbOutline() {
difference() {
- roundRect(pcb_w(), pcb_h(), pcb_edge_r(), center=true);
+ roundRect(PCB("pcb_sx"), PCB("pcb_sy"), PCB("pcb_edge_r"), center=true);
- pcbScrewHoles() circle(d=M3());
+ pcbScrewHoles() circle(d=PCB("M3"));
- translate([co_x, co_y, 0]) square([co_w + $E, co_h], center=true);
+ translate([PCB("co_x"), PCB("co_y"), 0]) square([PCB("co_w") + $E, PCB("co_h")], center=true);
}
}
-module pcb3D(pcb_t=pcb_t()) {
+module pcb3D(pcb_t=PCB("pcb_t")) {
FR4()
- linear_extrude(pcb_t())
+ linear_extrude(PCB("pcb_t"))
pcbOutline();
if ($preview) {
@@ -71,27 +85,27 @@ module pcb3D(pcb_t=pcb_t()) {
pcbScrewHoles()
Solder()
difference() {
- translate([0, 0, -$E]) cylinder(d=M3()*2, h=pcb_t()+2*$E);
- translate([0, 0, -$E*2]) cylinder(d=M3()-$E, h=pcb_t()+4*$E);
+ translate([0, 0, -$E]) cylinder(d=PCB("M3")*2, h=PCB("pcb_t")+2*$E);
+ translate([0, 0, -$E*2]) cylinder(d=PCB("M3")-$E, h=PCB("pcb_t")+4*$E);
}
// Solder()
-// translate([tpow_x(), tpow_y(), pcb_t() - $E])
+// translate([tpow_x(), tpow_y(), PCB("pcb_t") - $E])
// cube([tpow_sx(), tpow_sy(), tpow_sz()], center=true);
-// translate([tpow_x(), tpow_y(), pcb_t() - $E])
+// translate([tpow_x(), tpow_y(), PCB("pcb_t") - $E])
// terminal2();
- translate([tpow_x(), tpow_y(), pcb_t()])
+ translate([tpow_x(), tpow_y(), PCB("pcb_t")])
terminal2();
- for (ty=tled_y)
- translate([tled_x(), ty, pcb_t()])
+ for (ty=PCB("tled_y"))
+ translate([PCB("tled_x"), ty, PCB("pcb_t")])
rotate([0, 0, 180])
terminal3();
for (ty=[-aj_y(), aj_y()-aj_sy()])
- translate([aj_x(), ty, pcb_t()])
+ translate([aj_x(), ty, PCB("pcb_t")])
audioJack();
}
@@ -154,7 +168,7 @@ module terminal3() {
// aj = audio jack
function aj_x() = -12.25;
-function aj_y() = pcb_h()/2;
+function aj_y() = PCB("pcb_sy")/2;
function aj_h() = 5.0;
function aj_sx() = 12.4;
function aj_sy() = 11.7;
--
GitLab