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Teddy Middleton-Smith
2025-02-25 12:13:03 +00:00
parent 3476f37b84
commit 659001351e
52 changed files with 1542 additions and 0 deletions
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43
models/brake/brake_spring_load_assembly.scad Normal file
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include <../../config.scad>;
use <../common/metric_bolt_functions.scad>;
use <../common/metric_nut.scad>;
use <../common/compression_spring.scad>;
use <../common/washer.scad>;
module brake_spring_load_assembly() {
echo("Brake spring-load assembly:");
/* design variables
echo(str("DELTA_L_SPRING_BALLSCREW_MAX: ", DELTA_L_SPRING_BALLSCREW_MAX, "mm")); = 19
*/
L_spring_free = 110;
d_spring_outer = 21.6;
d_spring_wire = 1.6;
pitch = L_spring_free / 8;
h_nut = get_metric_bolt_head_height(D_BRAKE_BALLSCREW_AXLE);
d_nut = get_metric_bolt_head_diameter(D_BRAKE_BALLSCREW_AXLE);
union() {
// washer rear
rotate([-90, 0, 0]) washer(T_WASHER_BRAKE_BALLSCREW_POWER_WHEEL, D_WASHER_BRAKE_BALLSCREW_POWER_WHEEL, D_BRAKE_BALLSCREW_AXLE, false);
// spring
translate([0, T_WASHER_BRAKE_BALLSCREW_POWER_WHEEL + L_spring_free / 2, 0]) rotate([-90, 0, 0]) compression_spring(L_spring_free, d_spring_outer, d_spring_outer - d_spring_wire * 2, pitch);
// washer front
translate([0, T_WASHER_BRAKE_BALLSCREW_POWER_WHEEL + L_spring_free, 0]) rotate([-90, 0, 0]) washer(T_WASHER_BRAKE_BALLSCREW_POWER_WHEEL, D_WASHER_BRAKE_BALLSCREW_POWER_WHEEL, D_BRAKE_BALLSCREW_AXLE, false);
// nut(s)
color("gray") for (index_nut = [0 : 1 : 1]) {
translate([0, T_WASHER_BRAKE_BALLSCREW_POWER_WHEEL * 2 + L_spring_free + index_nut * h_nut, 0]) rotate([-90, 0, 0]) rotate([0, 0, index_nut * 30]) metric_nut(D_BRAKE_BALLSCREW_AXLE, centre = false); // cylinder(h_nut, d_nut / 2, d_nut / 2, center = false);
}
}
// Shopping
// spring
// https://uk.rs-online.com/web/p/compression-springs/0121242
// washers
// nuts
}
// $fn = 20;
brake_spring_load_assembly();