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rails end prototype

This commit is contained in:
Matt McWilliams 2023-08-20 13:57:00 -04:00
parent 83209f466f
commit 4c0fa2ba41
1 changed files with 62 additions and 19 deletions
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scad/rails_2020.scad
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@ -1,38 +1,81 @@
use <2020_profile.scad>
//include <jk_rails.scad>
include <./common/common.scad>
include <./common/motors.scad>
include <./common/rod.scad>
include <./common/rods.scad>
RailSpacing = 100;
ThreadedRodSpacing = 30;
ThreadedRodSpacing = 50;
RailEndX = 140;
module rounded_cube (c, d) {
r = d / 2;
scaled = [c[0] - d, c[1] - d, c[2] - d];
minkowski() {
cylinder(r = r, h = r, center = true);
cube(scaled, center = true);
module m3_bolt_void (pos = [0, 0, 0], BoltH = 20, CapH = 3) {
D = 3.25;
CapD = 6;
translate(pos) {
translate([0, 0, CapH / 2]) cylinder(r = R(CapD), h = CapH, center = true, $fn = 40);
translate([0, 0, -BoltH / 2]) cylinder(r = R(D), h = BoltH + 0.01, center = true, $fn = 40);
}
}
module rail_end (pos = [0, 0, 0], rot = [90, 0, 0]) {
module bolt_voids_2020 (pos = [0, 0, 0]) {
translate(pos) {
//translate([0, -25, 0]) rotate([90, 0, 0]) m3_bolt_void(CapH = 6);
translate([0, 25, 0]) rotate([-90, 0, 0]) m3_bolt_void(CapH = 6);
translate([-16, 0, 0]) rotate([0, -90, 0]) m3_bolt_void(CapH = 6, BoltH = 10);
}
}
module bolt_voids_motor (pos = [0, 0, 0]) {
Corner = NEMA17BoltSpacing / 2;
translate(pos) {
translate([Corner, Corner, 0]) m3_bolt_void(CapH = 6, BoltH = 40);
translate([Corner, -Corner, 0]) m3_bolt_void(CapH = 6, BoltH = 40);
translate([-Corner, Corner, 0]) m3_bolt_void(CapH = 6, BoltH = 40);
translate([-Corner, -Corner, 0]) m3_bolt_void(CapH = 6, BoltH = 40);
}
}
module rail_end (pos = [0, 0, 0], rot = [90, 0, 0], Motors = true) {
translate(pos) rotate(rot) difference () {
rounded_cube([RailEndX, 60, 40], d = 10, $fn = 50);
difference () {
translate([0, -10, 20]) rounded_cube([RailEndX, 80, 80], d = 10, center = true, $fn = 50);
translate([0, 10, 50]) rotate([0, 90, 0]) rounded_cube([60, 80, RailEndX + 1], d = 10, center = true, $fn = 50);
}
//rails
translate([-RailSpacing / 2, 0, 0]) cube([21, 21, 40 + 1], center = true);
translate([RailSpacing / 2, 0, 0]) cube([21, 21, 40 + 1], center = true);
//threaded rods motors
translate([-ThreadedRodSpacing / 2, 0, 0]) cylinder(r = R(10), h = 60, center = true, $fn = 100);
translate([ThreadedRodSpacing / 2, 0, 0]) cylinder(r = R(NEMA17PadD), h = 60, center = true, $fn = 100);
//translate([0, 0, 0])cylinder(r = 5, h = 40 + 1, center = true);
//translate([-10, 0, 0])cylinder(r = 5, h = 40 + 1, center = true);
translate([-RailSpacing / 2, 0, 5]) cube([21, 21, 40], center = true);
translate([RailSpacing / 2, 0, 5]) cube([21, 21, 40], center = true);
//rails bolts
bolt_voids_2020([-RailSpacing / 2, 0, 0]);
rotate([0, 180, 0]) bolt_voids_2020([-RailSpacing / 2, 0, 0]);
if (Motors) {
translate([ThreadedRodSpacing / 2, 0, 0]) {
cylinder(r = R(NEMA17PadD + 0.5), h = 60, center = true, $fn = 100);
bolt_voids_motor([0, 0, 16]);
}
translate([-ThreadedRodSpacing / 2, 0, 0]) {
cylinder(r = R(NEMA17PadD + 0.5), h = 60, center = true, $fn = 100);
bolt_voids_motor([0, 0, 16]);
}
} else {
translate([-ThreadedRodSpacing / 2, 0, 0]) cylinder(r = R(LinearBearingOuterDiameter + 0.5), h = 60, center = true, $fn = 100);
translate([-ThreadedRodSpacing / 2, 0, 0]) cylinder(r = R(LinearBearingOuterDiameter + 0.5), h = 60, center = true, $fn = 100);
}
//linear motion rod
translate([0, 0, 5]) cylinder(r = R(ThreadDiameter), h = 40, center = true, $fn = 50);
//mounting bolts
translate([70 / 2, 0, 40]) rotate([90, 0, 0]) cylinder(r = R(10), h = 150, center = true, $fn = 40);
translate([-70 / 2, 0, 40]) rotate([90, 0, 0]) cylinder(r = R(10), h = 150, center = true, $fn = 40);
}
}
rail_end();
//translate([-35, 0, -25]) linear_extrude(height=175) 2020_profile();
translate([RailSpacing / 2, 0, 0]) rotate([90, 0, 0]) linear_extrude(height=175) 2020_profile();
//translate([RailSpacing / 2, 0, 0]) rotate([90, 0, 0]) linear_extrude(height=175) 2020_profile();
translate([ThreadedRodSpacing / 2, 40, 0]) rotate([90, 0, 0]) color("blue") NEMA17();
//translate([ThreadedRodSpacing / 2, 40, 0]) rotate([90, 0, 0]) color("blue") NEMA17();
//translate([-ThreadedRodSpacing / 2, 40, 0]) rotate([90, 0, 0]) color("blue") NEMA17();