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Code Issues Releases Wiki Activity

Cable clips can now use inserts or nut traps.

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This commit is contained in:
Chris Palmer
2024-04-21 12:08:40 +01:00
parent c7e912cd77
commit 97cea65f41
5 changed files with 74 additions and 60 deletions
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86
printed/cable_clip.scad
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@@ -18,7 +18,7 @@
//
//
//! Cable clips to order. Can be for one or two cables of different sizes. Can use an insert and a screw from below or a screw and nut either way up.
//! Cable clips to order. Can be for one or two cables of different sizes. Can use an insert and a screw from below or a screw and nut, nyloc or plain, either way up.
//
include <../core.scad>
use <../vitamins/wire.scad>
@@ -30,27 +30,29 @@ wall = 2;
function cable_clip_insert(screw, insert = true) = //! Insert type for clip, given screw.
is_list(insert) ? insert : insert ? screw_insert(screw, true) : false;
function cable_clip_width(screw, insert = false) = //! Width given the `screw` and possibly insert.
function cable_clip_width(screw, insert = false, nut = false) = //! Width given the `screw` and possibly insert or nut.
let(insert = cable_clip_insert(screw, insert))
insert ? 2 * (insert_hole_radius(insert) + wall) :
max(wall + 2 * screw_clearance_radius(screw) + wall, washer_diameter(screw_washer(screw)));
nut ? 2 * (nut_radius(screw_nut(screw)) + wall) :
max(wall + 2 * screw_clearance_radius(screw) + wall, washer_diameter(screw_washer(screw)));
function cable_clip_height(cable, screw = false, insert = false) = //! Height given the `cable`.
function cable_clip_height(cable, screw = false, insert = false, nut = false) = //! Height given the `cable`.
let(insert = cable_clip_insert(screw, insert))
max(cable_height(cable) + wall, insert ? insert_hole_length(insert) + 1 : 0);
max(cable_height(cable) + wall, insert ? insert_hole_length(insert) + 1 : 0, nut ? nut_trap_depth(screw_nut(screw)) + wall : 0);
function cable_clip_extent(screw, cable, insert = false) = cable_clip_width(screw, insert) / 2 + cable_width(cable) + wall; //! How far it extends from the screw.
function cable_clip_offset(screw, cable, insert = false) = cable_clip_width(screw, insert) / 2 + cable_width(cable) / 2; //! The offset of the cable from the screw.
function cable_clip_extent(screw, cable, insert = false, nut = false) = cable_clip_width(screw, insert, nut) / 2 + cable_width(cable) + wall; //! How far it extends from the screw.
function cable_clip_offset(screw, cable, insert = false, nut = false) = cable_clip_width(screw, insert, nut) / 2 + cable_width(cable) / 2; //! The offset of the cable from the screw.
module single_cable_clip(screw, cable, h = 0, insert = false) {
module single_cable_clip(screw, cable, h = 0, insert = false, nut = false) {
insert = cable_clip_insert(screw, insert);
height = cable_clip_width(screw, insert);
depth = h ? h : cable_clip_height(cable, screw, insert);
height = cable_clip_width(screw, insert, nut);
depth = h ? h : cable_clip_height(cable, screw, insert, nut);
w = cable_width(cable);
width = wall + w + height;
hole_x = wall + w + height / 2;
rad = min(wall + cable_wire_size(cable) / 2, depth / 2);
r = extrusion_width - eps;
the_nut = screw_nut(screw);
translate([-hole_x, 0])
difference() {
linear_extrude(height)
@@ -85,62 +87,68 @@ module single_cable_clip(screw, cable, h = 0, insert = false) {
if(insert)
insert_hole(insert, 10, horizontal = true);
else
teardrop_plus(h = 2 * depth + 1, r = screw_clearance_radius(screw), center = true);
if(nut) {
translate_z(depth - wall - nut_trap_depth(the_nut))
nut_trap(screw, the_nut, horizontal = true);
nut_trap(screw, the_nut, horizontal = true);
}
else
teardrop_plus(h = 2 * depth + 1, r = screw_clearance_radius(screw), center = true);
}
}
module double_cable_clip(screw, cable1, cable2, insert = false) {
h = max(cable_clip_height(cable1, screw, insert), cable_clip_height(cable2, screw, insert));
module double_cable_clip(screw, cable1, cable2, insert = false, nut = false) {
h = max(cable_clip_height(cable1, screw, insert, nut), cable_clip_height(cable2, screw, insert, nut));
union() {
single_cable_clip(screw, cable1, h, insert);
single_cable_clip(screw, cable1, h, insert, nut);
mirror([1,0,0]) single_cable_clip(screw, cable2, h, insert);
mirror([1,0,0]) single_cable_clip(screw, cable2, h, insert, nut);
}
}
module cable_clip(screw, cable1, cable2 = 0, insert = false) { //! Create the STL for a single cable or two cable clip
function clip_str(screw) = str("cable_clip_", screw_radius(screw) * 20, insert ? "I" : "");
module cable_clip(screw, cable1, cable2 = 0, insert = false, nut = false) { //! Create the STL for a single cable or two cable clip
function clip_str(screw) = str("cable_clip_", screw_radius(screw) * 20, insert ? "I" : nut ? "N" : "");
function cable_str(cable) = str("_", cable_wires(cable), "_", round(cable_wire_size(cable) * 10));
if(cable2) {
stl(str(clip_str(screw), cable_str(cable1), cable_str(cable2)));
double_cable_clip(screw, cable1, cable2, insert);
}
else {
stl(str(clip_str(screw), cable_str(cable1)));
single_cable_clip(screw, cable1, h = 0, insert = insert);
}
assert(!(insert && nut), "insert and nut mutually exclusive");
if(cable2)
stl(str(clip_str(screw), cable_str(cable1), cable_str(cable2)))
double_cable_clip(screw, cable1, cable2, insert, nut);
else
stl(str(clip_str(screw), cable_str(cable1)))
single_cable_clip(screw, cable1, h = 0, insert = insert, nut = nut);
}
module cable_clip_assembly(screw, thickness, cable1, cable2 = 0, flip = false, insert = false) { //! Cable clip with the fasteners
flip = flip || insert; // Screw must be below if using an insert
module cable_clip_assembly(screw, thickness, cable1, cable2 = 0, flip = false, insert = false, nut = false, nyloc = true) { //! Cable clip with the fasteners
flip = flip || insert || nut; // Screw must be below if using an insert or nut
insert = cable_clip_insert(screw, insert);
height = max(cable_clip_height(cable1, screw, insert), cable2 ? cable_clip_height(cable2, screw, insert) : 0);
height = max(cable_clip_height(cable1, screw, insert, nut), cable2 ? cable_clip_height(cable2, screw, insert, nut) : 0);
stl_colour(pp1_colour) render()
translate([0, cable_clip_width(screw, insert) / 2])
translate([0, cable_clip_width(screw, insert, nut) / 2])
rotate([90, 0, 0])
cable_clip(screw, cable1, cable2, insert);
cable_clip(screw, cable1, cable2, insert, nut);
nut = screw_nut(screw);
screw_len = screw_length(screw, height + thickness, 2, nyloc = !insert, insert = insert);
the_nut = screw_nut(screw);
screw_len = nut ? screw_length(screw, thickness + wall, nyloc ? 1 : 2, nyloc = nyloc, nut = !nyloc)
: screw_length(screw, thickness + height, 2, nut = !nyloc && !insert, nyloc = !insert && nyloc, insert = insert);
translate_z(height)
if(flip)
if(insert)
insert(insert);
else
nut_and_washer(nut, true);
if(nut)
translate_z(-height + wall)
nut(the_nut, nyloc);
else
nut_and_washer(the_nut, nyloc);
else
screw_and_washer(screw, screw_len);
translate_z(-thickness)
vflip()
if(flip)
screw_and_washer(screw, screw_len, insert);
screw_and_washer(screw, screw_len, insert || !nyloc);
else
nut_and_washer(nut, true);
nut_and_washer(the_nut, nyloc);
}