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Added crimp version of ring terminal.
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Chris Palmer
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@ -24,7 +24,7 @@ include <../vitamins/ring_terminals.scad>
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module ring_terminals()
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layout([for(t = ring_terminals) ringterm_od(t)], 5)
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rotate(90)
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rotate(180)
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ring_terminal_assembly(ring_terminals[$i], 3);
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if($preview)
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@ -26,48 +26,96 @@ use <nut.scad>
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use <washer.scad>
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use <../utils/tube.scad>
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function ringterm_od(type) = type[1]; //! Outside diameter
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function ringterm_id(type) = type[2]; //! Inside diameter
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function ringterm_length(type) = type[3]; //! Length of the tail including the ring
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function ringterm_width(type) = type[4]; //! Width of the tail
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function ringterm_hole(type) = type[5]; //! Wire hole diameter
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function ringterm_thickness(type) = type[6]; //! Metal thickness
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function ringterm_screw(type) = type[7]; //! Screw type
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function ringterm_od(type) = type[1]; //! Outside diameter
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function ringterm_id(type) = type[2]; //! Inside diameter
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function ringterm_length(type) = type[3]; //! Length of the tail including the ring
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function ringterm_width(type) = type[4]; //! Width of the tail
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function ringterm_hole(type) = type[5]; //! Wire hole diameter
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function ringterm_thickness(type) = type[6]; //! Metal thickness
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function ringterm_screw(type) = type[7]; //! Screw type
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function ringterm_crimp_length(type) = type[8]; //! If non-zero the length of the crimp tube
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function ringterm_extent(type) = ringterm_length(type) / sqrt(2); //! Space to leave
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module ring_terminal(type) { //! Draw specifeid ring terminal
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screw = ringterm_screw(type);
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d = 2 * screw_radius(screw);
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vitamin(str("ring_terminal(", type[0], "): Ring terminal ",d,"mm"));
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crimp = ringterm_crimp_length(type);
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vitamin(str("ring_terminal(", type[0], "): Ring terminal ", crimp ? "crimp " : "", d, "mm"));
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t = ringterm_thickness(type);
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w = ringterm_width(type);
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od = ringterm_od(type);
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id = ringterm_id(type);
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l = ringterm_length(type);
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angle = 45;
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bend = washer_radius(screw_washer(screw)) + t * tan(angle / 2);
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angle = crimp ? 0 : 45;
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transition = 1;
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bend = crimp ? l - od / 2 - crimp - transition : washer_radius(screw_washer(screw)) + t * tan(angle / 2);
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hole_d = ringterm_hole(type);
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module hull_if_crimp()
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if(crimp)
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hull()
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children();
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else
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children();
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color("silver") union() {
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tube(or = od / 2, ir = id / 2, h = t, center = false);
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linear_extrude(height = t)
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difference() {
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hull_if_crimp() {
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circle(d = od);
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translate([-w / 2, -bend, 0])
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cube([w, bend - id / 2, t]);
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translate([-w / 2, -bend, 0])
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square([w, bend - id / 2]);
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}
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circle(d = id);
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}
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translate([0, -bend])
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rotate([-angle, 0, 0])
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linear_extrude(height = t)
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difference() {
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length = l - od / 2 - bend;
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hull() {
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translate([-w / 2, -eps])
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square([w, eps]);
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if(crimp) {
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translate([0, -bend, w / 2])
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rotate([90, 0, 0]) {
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render() difference() {
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union() {
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translate_z(transition)
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cylinder(d = w, h = crimp);
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translate([0, -length + w / 2])
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circle(d = w);
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hull() {
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translate_z(transition)
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cylinder(d = w, h = eps);
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translate([-w / 2, -w / 2])
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cube([w, t, eps]);
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}
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}
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translate([0, -length + w / 2])
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circle(d = ringterm_hole(type));
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hull() {
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translate_z(-eps)
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cylinder(d = w - 2 * t, h = crimp + transition + 2 * eps);
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translate([-w / 2 + t, -w / 2 + t])
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cube([w - 2 * t, w / 2 - t, eps]);
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}
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translate([0, w / 2])
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cube([0.1, w, 100], center = true);
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}
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}
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}
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else
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translate([0, -bend])
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rotate([-angle, 0, 0])
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linear_extrude(height = t)
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difference() {
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length = l - od / 2 - bend;
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hull() {
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translate([-w / 2, -eps])
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square([w, eps]);
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translate([0, -length + w / 2])
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circle(d = w);
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}
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if(hole_d)
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translate([0, -length + w / 2])
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circle(d = hole_d);
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}
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}
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translate_z(ringterm_thickness(type))
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children();
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@ -20,16 +20,17 @@
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//
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// Ring terminals
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//
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// o i l w h t s
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// d d e i o h c
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// n d l i r
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// g t e c e
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// t h k w
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// h
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// o i l w h t s c
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// d d e i o h c r
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// n d l i r i
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// g t e c e m
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// t h k w p
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// h
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//
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M3_ringterm = ["M3_ringterm", 6, 3, 12, 3, 1.5, 0.2, M3_dome_screw];
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M3_ringterm_cs = ["M3_ringterm_cs", 6, 3, 12, 3, 1.5, 0.2, M3_cap_screw];
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M3_ringterm = ["M3_ringterm", 6, 3, 12, 3, 1.5, 0.2, M3_dome_screw, 0];
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M3_ringterm_cs = ["M3_ringterm_cs", 6, 3, 12, 3, 1.5, 0.2, M3_cap_screw, 0];
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M3_ringterm_crimp = ["M3_ringterm_crimp", 5.5, 3, 13, 4.1, 0, 0.7, M3_dome_screw, 4.5];
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ring_terminals = [M3_ringterm, M3_ringterm_cs];
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ring_terminals = [M3_ringterm, M3_ringterm_cs, M3_ringterm_crimp];
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use <ring_terminal.scad>
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