openscad/NopSCADlib
1
0
Fork 0
mirror of https://github.com/nophead/NopSCADlib.git synced 2025-01-17 05:28:14 +01:00
Code Issues Releases Wiki Activity

PCB lands can be rounded and can specify colour.

Browse Source 
Holes can be positioned on the edge to make surface mountable connections.
This commit is contained in:
Chris Palmer 2021-06-07 10:59:47 +01:00
parent 4fc8a7f47d
commit 3147862212
1 changed files with 41 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

63
vitamins/pcb.scad
View File

@ -1018,43 +1018,62 @@ module pcb_grid_positions(type) {
module pcb(type) { //! Draw specified PCB
grid = pcb_grid(type);
t = pcb_thickness(type);
w = pcb_width(type);
l = pcb_length(type);
module pcb_shape()
if(Len(pcb_polygon(type)))
polygon(pcb_polygon(type));
else
rounded_square([l, w], r = pcb_radius(type));
if(pcb_name(type))
vitamin(str("pcb(", type[0], "): ", pcb_name(type)));
for(part = pcb_accessories(type))
vitamin(part);
color(pcb_colour(type)) linear_extrude(t) difference() {
if(Len(pcb_polygon(type)))
polygon(pcb_polygon(type));
else
rounded_square([pcb_length(type), pcb_width(type)], r = pcb_radius(type));
color(pcb_colour(type))
linear_extrude(t)
difference() {
pcb_shape();
pcb_hole_positions(type)
circle(d = pcb_hole_d(type) + eps);
pcb_hole_positions(type)
offset(eps)
circle4n(d = pcb_hole_d(type));
if(Len(grid))
pcb_grid_positions(type)
circle(d = 1 + eps);
}
if(Len(grid))
pcb_grid_positions(type)
circle(d = 1 + eps);
}
land = pcb_land_d(type);
land_r = Len(land) > 2 ? land[2] : 0;
hole = pcb_hole_d(type);
color("silver")
plating = 0.1;
color(Len(land) > 3 ? land[3] : silver)
translate_z(t / 2)
pcb_hole_positions(type)
if(is_list(land))
linear_extrude(t + 2 * eps, center = true)
difference() {
square(land, center = true);
linear_extrude(t + 2 * plating, center = true)
difference() {
intersection() {
pcb_hole_positions(type)
if(is_list(land)) {
p = pcb_holes(type)[$i]; // If edge SMT pad then make it rectangular to overlap without gaps
edge = abs(p.x) < eps || abs(p.x - l) < eps || abs(p.y) < eps || abs(p.y - w) < eps;
rounded_square([land.x, land.y], edge ? 0 : land_r);
}
else
circle(d = max(land, 1));
circle(d = hole);
}
else
tube(or = max(land, 1) / 2, ir = hole / 2, h = t + 2 * eps);
offset(eps)
pcb_shape(); // Handle half holes on the edge of PCBs such as ESP8266
}
pcb_hole_positions(type)
circle4n(d = hole);
}
fr4 = pcb_colour(type) != "sienna";
plating = 0.15;
pcb_colour = pcb_colour(type);
color(pcb_colour == "green" ? silver : pcb_colour == "sienna" ? copper : gold)
translate_z(-plating)