97 lines
2.8 KiB
OpenSCAD
97 lines
2.8 KiB
OpenSCAD
use <helpers/Holes.scad>;
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include <Slider_dims.scad>;
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Slider_back();
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module Slider_back() {
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difference() {
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union() {
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body();
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zcube();
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}
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dist=(heightMain-holeDist)/2;
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translate([0,0,dist]) bearingHalfHoles();
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translate([0,0,dist+holeDist]) bearingHalfHoles();
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cubecenter=heightMain/2-rollWithRodDist/2;
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translate([0, 0, heightMain/2]) cube([width, 5, rollWithRodDist]);
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translate([0, -5, cubecenter]) beltHolder();
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translate([width, -5, cubecenter]) rotate([0, 180, 0]) beltHolder();
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// add the 4 mountholes
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MountHoles();
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}
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}
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module body() {
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edgeRound=1.5;
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translate([edgeRound, 0, edgeRound]) minkowski() {
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cube([width-edgeRound*2, depth/2, heightMain-edgeRound*2]);
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rotate([-90, 0, 0]) cylinder(r=edgeRound,h=depth/2);
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}
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}
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// add the offset cube with the triangle to have space for the belts in it
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module zcube() {
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cubez=heightMain/2-rollWithRodDist;
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translate([0, -5, cubez]) cube([width, 5, rollWithRodDist]);
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// the bottom triangle
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translate([0, 0, cubez]) rotate([-90,0,-90]) linear_extrude(width) #polygon([[0,0],[5,0],[0,5]]);
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}
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function getBearingLength() = bearingLength;
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module bearingHalfHoles() {
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sideDist=3;
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//rotate([0, 90, 0]) cylinder(h = width, d = 8+2); // we are defining +1mm to fit the rod in the hole...
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translate([sideDist,0,0]) bearingHalfHole();
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translate([width-bearingLength-sideDist,0,0]) bearingHalfHole();
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}
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module bearingHalfHole(rodln=bearingLength+10) {
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#translate([(bearingLength - rodln)/2,0,0]) rotate([0, 90, 0]) cylinder(h = rodln, d = 8+2);
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rotate([0, 90, 0]) cylinder(h = bearingLength, d = bearingDiam);
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}
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module beltHolder() {
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translate([0, 0, -twoRodSize/2]) {
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cube([17, 10, twoRodSize]);
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translate([20, 0, twoRodSize/2]) rotate([-90, 0, 0]) difference() {
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hull() {
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cylinder(r=middleCylinderOuterRad, h=10);
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#translate([-5, 0, 0]) #cylinder(r=1, h=10);
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}
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cylinder(r=middleCylinderRad, h=10);
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}
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}
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}
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module MountHoles() {
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translate([holeLeftRightMargin,0,holeTop]) {
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rotate([0,0,90]) #M3Hole(10);
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translate([0,5,0]) rotate([0,0,90]) M3Nut(5);
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}
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translate([width-holeLeftRightMargin,0,holeTop]) {
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rotate([0,0,90]) #M3Hole(10);
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translate([0,5,0]) rotate([0,0,90]) M3Nut(5);
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}
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translate([holeLeftRightMargin,0,holeBottom]) {
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translate([0,-5,0]) rotate([0,0,90]) #M3Hole(15);
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translate([0,5,0]) rotate([0,0,90]) M3Nut(10);
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}
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translate([width-holeLeftRightMargin,0,holeBottom]) {
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translate([0,-5,0]) rotate([0,0,90]) #M3Hole(15);
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translate([0,5,0]) rotate([0,0,90]) M3Nut(10);
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}
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} |