379 lines
15 KiB
OpenSCAD
379 lines
15 KiB
OpenSCAD
// This file is part of Cyclone PCB Factory: an open-source 3D printable CNC machine for PCB manufacture
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// http://reprap.org/wiki/Cyclone_PCB_Factory
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// Original author: Carlosgs (http://carlosgs.es)
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// License: CC BY-SA 4.0 (Attribution-ShareAlike 4.0 International, http://creativecommons.org/licenses/by-sa/4.0/)
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// Designed with http://www.openscad.org/
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Xmotor_sideLen = 42.20;
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axes_XgearSeparation = 37;
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axes_XgearRatio = 21/21; // Number of tooth (motor/rod)
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axes_XgearThickness = 10;
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X_frames_additional_thickness = 5;
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module Cyclone_X_rightFrame() {
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scale([-1,1,1]) Cyclone_X_leftFrame(isLeft=false);
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}
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include <MCAD/stepper.scad>
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module Cyclone_X_leftFrame(isLeft=true) {
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screwSize = 3; // M3, M4, etc (integers only)
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motorWallSeparation = 5;
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motorRotatedOffset = 5;
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gearWallSeparation = 5;
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partThickness = X_frames_additional_thickness+screwSize*2;
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dimX = partThickness;
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dimY = max(-axes_Xreference_posY,axes_Xsmooth_separation+axes_XgearSeparation*cos(motorRotatedOffset)+Xmotor_sideLen/2+1.6);
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dimZ = axes_Yreference_height+axes_Xreference_height+axes_Xsmooth_separation;
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footSeparation = screwSize*3;
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footThickness = 10;
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footWidth = dimX+2*footSeparation;
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bearingDepth = 3;
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corner_radius = 10;
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module Cyclone_XsubPart_gearCover() {
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margin = 4;
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rodGearAddedMargin = 0;
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effectiveXgearSeparation = axes_XgearSeparation+0.5;
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wallThickness = 0.4*4;
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screwHeadSpaceHeight = 4;
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screwHeadSpaceDiam = 6;
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coverHeight = 16;
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coverExtraHeight = 5;
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coverExtraRadius = -7;
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nema_screw_separation = lookup(NemaDistanceBetweenMountingHoles, Nema17);
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truncationAngle = 10;
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motorGearRadius = axes_XgearSeparation/(1+axes_XgearRatio)+margin;
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rodGearRadius = axes_XgearSeparation/(1+1/axes_XgearRatio)+margin+rodGearAddedMargin;
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difference() {
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union() {
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// Cover for the rod gear
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rotate([0,90,0])
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cylinder(r=rodGearRadius+wallThickness, h=coverHeight);
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translate([coverHeight,0,0])
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rotate([0,90,0])
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cylinder(r1=rodGearRadius+wallThickness, r2=rodGearRadius+wallThickness+coverExtraRadius, h=coverExtraHeight+wallThickness);
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// Translate to motor position
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rotate([motorRotatedOffset,0,0]) {
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translate([0,effectiveXgearSeparation,0])
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rotate([-motorRotatedOffset,0,0]) {
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// Cover for the motor gear
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rotate([0,90,0]) cylinder(r=motorGearRadius+wallThickness, h=coverHeight);
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translate([coverHeight,0,0])
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rotate([0,90,0]) cylinder(r1=motorGearRadius+wallThickness, r2=motorGearRadius+wallThickness+coverExtraRadius, h=coverExtraHeight+wallThickness);
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// Cylinder for the support screw
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translate([0,-nema_screw_separation/2,nema_screw_separation/2])
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rotate([0,90,0]) cylinder(r=screwHeadSpaceDiam/2+wallThickness, h=coverHeight);
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}
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}
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}
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translate([-0.02,0,0])
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union() {
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// Truncation for avoiding collisions with Y carriage (needed for the Y gear cover)
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translate([0,-rodGearRadius/2,-rodGearRadius-0.5])
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rotate([0,90+truncationAngle,0]) cube(rodGearRadius);
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// Hole for the rod gear
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rotate([0,90,0])
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cylinder(r=rodGearRadius, h=coverHeight);
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translate([coverHeight-0.02,0,0])
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rotate([0,90,0])
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cylinder(r1=rodGearRadius, r2=rodGearRadius+coverExtraRadius, h=coverExtraHeight);
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rotate([0,90,0])
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cylinder(r=rodGearRadius+coverExtraRadius, h=coverHeight+coverExtraHeight+wallThickness+0.1);
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// Translate to motor position
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rotate([motorRotatedOffset,0,0]) {
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translate([0,effectiveXgearSeparation,0])
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rotate([-motorRotatedOffset,0,0]) {
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difference() {
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union() {
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// Hole for the motor gear
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rotate([0,90,0]) cylinder(r=motorGearRadius, h=coverHeight);
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translate([coverHeight-0.02,0,0])
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rotate([0,90,0]) cylinder(r1=motorGearRadius, r2=motorGearRadius+coverExtraRadius, h=coverExtraHeight);
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rotate([0,90,0]) cylinder(r=motorGearRadius+coverExtraRadius, h=coverHeight+coverExtraHeight+wallThickness+0.1);
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// Outer hole for the support screw
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translate([0,-nema_screw_separation/2,nema_screw_separation/2])
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rotate([0,90,0]) cylinder(r=screwHeadSpaceDiam/2, h=coverHeight+coverExtraHeight*2);
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}
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// Support screw holder
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translate([0,-nema_screw_separation/2,nema_screw_separation/2])
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rotate([0,90,0]) cylinder(r=screwHeadSpaceDiam/2+wallThickness, h=wallThickness);
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}
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// Inner hole for the support screw
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translate([0,-nema_screw_separation/2,nema_screw_separation/2])
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rotate([0,90,0]) cylinder(r=(screwSize+1)/2, h=coverHeight+0.1);
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// Holes for the other three screws
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translate([0,nema_screw_separation/2,nema_screw_separation/2])
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rotate([0,90,0]) cylinder(r=screwHeadSpaceDiam/2, h=screwHeadSpaceHeight/2);
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translate([screwHeadSpaceHeight/2,nema_screw_separation/2,nema_screw_separation/2])
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rotate([0,90,0]) sphere(r=screwHeadSpaceDiam/2);
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translate([0,nema_screw_separation/2,-nema_screw_separation/2])
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rotate([0,90,0]) cylinder(r=screwHeadSpaceDiam/2, h=screwHeadSpaceHeight/2);
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translate([screwHeadSpaceHeight/2,nema_screw_separation/2,-nema_screw_separation/2])
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rotate([0,90,0]) sphere(r=screwHeadSpaceDiam/2);
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translate([0,-nema_screw_separation/2,-nema_screw_separation/2])
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rotate([0,90,0]) cylinder(r=screwHeadSpaceDiam/2, h=screwHeadSpaceHeight/2);
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translate([screwHeadSpaceHeight/2,-nema_screw_separation/2,-nema_screw_separation/2])
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rotate([0,90,0]) sphere(r=screwHeadSpaceDiam/2);
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}
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}
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}
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}
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}
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module Cyclone_X_endstopHolder(holes=false) {
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// Endstop holder
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translate([-partThickness-0.04,19,-5+axes_Xsmooth_separation])
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rotate([-60,0,0]) {
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rotate([0,0,-90]) mirror([1,0,0]) endstop_holder(holes, shortNuts=true);
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if(holes)
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cube([partThickness+1,100,50]);
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}
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}
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// Crocodile clip holders and wire guide
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module Cyclone_X_frameHoles() {
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frameFrontalThickness = 15;
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holeWidth = dimY/2;
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holeHeight = dimZ/2;
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crocodileHolderStepLenght = 12/2;
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crocodileHolderThick = 5;
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crocodileHolderSlim = 2.5;
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crocodileHoldersSeparation = holeWidth/3;
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wireSlotSeparation = dimX; // Distance from outer wall
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wireSlotThicknessThick = 4;
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wireSlotThicknessSlim = 1.5;
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wireSlotDepth = 5;
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wireHoleDiam = 10;
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module SingleCrocodileClipHolder() {
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translate([-partThickness/2,0,0]) union() {
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rotate([0,90,0]) bcube([crocodileHolderStepLenght*2,crocodileHolderThick,partThickness*2], cr=1, cres=10);
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rotate([0,90,0]) bcube([crocodileHolderStepLenght*4,crocodileHolderSlim,partThickness*2], cr=1, cres=10);
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}
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}
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// Translate to lower-front corner
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translate([0,frameFrontalThickness, -axes_Yreference_height-axes_Xreference_height+footThickness+0.01]) {
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difference() {
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// Main hole
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translate([-partThickness/2,holeWidth/2,holeHeight/2])
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rotate([0,90,0]) bcube([holeHeight,holeWidth,partThickness*2], cr=15, cres=10);
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// Translate to top center position
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translate([0,holeWidth/2,holeHeight]) {
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// Crocodile clip holders
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translate([0,crocodileHoldersSeparation/2,0])
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SingleCrocodileClipHolder();
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translate([0,-crocodileHoldersSeparation/2,0])
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SingleCrocodileClipHolder();
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}
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}
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if(!isLeft) {
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// Wire slot
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translate([wireSlotDepth-dimX, dimY-frameFrontalThickness-wireSlotSeparation-wireSlotThicknessSlim/2, dimZ/2+0.01]) {
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translate([-wireSlotDepth,0,0])
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rotate([0,0,180]) cube([wireSlotDepth*2,wireSlotThicknessSlim,dimZ], center=true);
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cylinder(r=wireSlotThicknessThick/2, h=dimZ, center=true);
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translate([0,0,-dimZ/2+wireHoleDiam/2])
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rotate([0,-90,0]) cylinder(r=wireSlotThicknessThick/2, h=wireSlotDepth*2);
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// Wire hole (thick)
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translate([-wireSlotDepth-wireHoleDiam/2,0,-dimZ/2+wireHoleDiam/2])
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rotate([90,90,0]) cylinder(r=wireHoleDiam/2, h=100, center=true);
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}
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}
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}
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}
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difference() {
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// Main block
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union() {
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translate([-axes_Xreference_posX-dimX-0.01,axes_Xreference_posY,-axes_Yreference_height]) {
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cube([dimX,dimY,dimZ-axes_Xsmooth_separation]);
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translate([-footWidth/2+dimX,dimY/2,footThickness/2]) bcube([footWidth,dimY,footThickness], cr=corner_radius, cres=10);
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}
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rodHolder(rodD=axes_Ysmooth_rodD, screwSize=screwSize, height=axes_Yreference_height, sideLen=-axes_Xreference_posX-1);
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// TRANSLATE REFERENCE POSITION to the left frame, X lower smooth rod end
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translate([-axes_Xreference_posX,axes_Xreference_posY,axes_Xreference_height]) {
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// TRANSLATE REFERENCE POSITION to the threaded rod
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translate([-0.01,axes_Xsmooth_separation,0]) {
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rotate([0,-90,0]) cylinder(r=axes_Xsmooth_separation,h=partThickness);
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if(!isLeft)
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Cyclone_X_endstopHolder(holes=false);
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}
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}
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}
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// TRANSLATE REFERENCE POSITION to the left frame, X lower smooth rod end
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translate([-axes_Xreference_posX,axes_Xreference_posY,axes_Xreference_height]) {
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rotate([0,0,90]) standard_rod(diam=axes_Xsmooth_rodD, length=partThickness*4, threaded=false, renderPart=true, center=true);
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rotate([0,0,-90])
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rotate([0,90,0])
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rodHolder(rodD=axes_Xsmooth_rodD, screwSize=screwSize, negative=true);
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// Crocodile clip holders and wire guide
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Cyclone_X_frameHoles();
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// TRANSLATE REFERENCE POSITION to the threaded rod
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translate([+0.01,axes_Xsmooth_separation,0]) {
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// Rod radial bearing hole
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rotate([0,-90,0]) bearingHole(depth=bearingDepth, thickness=partThickness);
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// Translate to motor position
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if(isLeft)
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translate([-motorWallSeparation,0,0])
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rotate([motorRotatedOffset,0,0])
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translate([0,axes_XgearSeparation,0])
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rotate([-motorRotatedOffset,0,0])
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rotate([0,90,0]) stepperMotor_mount(motorWallSeparation, sideLen=Xmotor_sideLen, slideOut=true);
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// Endstop holder
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if(!isLeft)
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Cyclone_X_endstopHolder(holes=true);
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translate([0,0,axes_Xsmooth_separation]) {
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rotate([0,0,90]) standard_rod(diam=axes_Xsmooth_rodD, length=partThickness*4, threaded=false, renderPart=true, center=true);
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rotate([0,0,-90])
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rodHolder(rodD=axes_Xsmooth_rodD, screwSize=screwSize, negative=true);
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}
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}
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}
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// Holes for the screws
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translate([-axes_Xreference_posX-dimX-footSeparation,axes_Xreference_posY+footSeparation,-axes_Yreference_height+footThickness]) {
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rotate([0,90,0])
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rotate([0,0,90])
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hole_for_screw(size=screwSize,length=footThickness+base_thickness,nutDepth=0,nutAddedLen=0,captiveLen=0, invert=true);
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translate([0,dimY/2,0])
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rotate([0,90,0])
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rotate([0,0,90])
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hole_for_screw(size=screwSize,length=footThickness+base_thickness,nutDepth=0,nutAddedLen=0,captiveLen=0, invert=true);
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translate([0,dimY-2*footSeparation,0])
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rotate([0,90,0])
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rotate([0,0,90])
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hole_for_screw(size=screwSize,length=footThickness+base_thickness,nutDepth=0,nutAddedLen=0,captiveLen=0, invert=true);
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}
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}
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// Draw rod holders, motor, gears, screws
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// TRANSLATE REFERENCE POSITION to the left frame, X lower smooth rod end
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translate([-axes_Xreference_posX,axes_Xreference_posY,axes_Xreference_height]) {
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if(draw_references) color("red") %frame(20);
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rotate([0,0,-90])
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rotate([0,90,0])
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rodHolder(rodD=axes_Ysmooth_rodD, screwSize=screwSize);
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// TRANSLATE REFERENCE POSITION to the threaded rod
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translate([0,axes_Xsmooth_separation,0]) {
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if(draw_references) color("green") %frame(20);
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translate([-bearingDepth,0,0]) rotate([0,90,0])
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radialBearing(echoPart=true);
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if(isLeft) {
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translate([gearWallSeparation,0,0]) rotate([0,90,0])
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rodGear(r=axes_XgearSeparation/(1+1/axes_XgearRatio), h=axes_XgearThickness, echoPart=true);
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// Translate to motor position
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rotate([motorRotatedOffset,0,0]) {
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translate([0,axes_XgearSeparation,0])
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rotate([-motorRotatedOffset,0,0]) {
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translate([-motorWallSeparation,0,0]) rotate([0,90,0]) stepperMotor(screwHeight=motorWallSeparation, echoPart=true);
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translate([gearWallSeparation,0,0]) rotate([0,90,0]) motorGear(r=axes_XgearSeparation/(1+axes_XgearRatio), h=axes_XgearThickness, echoPart=true);
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}
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}
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translate([0.1,0,0])
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Cyclone_XsubPart_gearCover();
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}
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translate([0,0,axes_Xsmooth_separation])
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rotate([0,0,-90])
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rodHolder(rodD=axes_Ysmooth_rodD, screwSize=screwSize);
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}
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}
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translate([-axes_Xreference_posX-dimX-footSeparation,axes_Xreference_posY+footSeparation,-axes_Yreference_height+footThickness]) {
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rotate([0,90,0])
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rotate([0,0,90])
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screw_and_nut(size=screwSize,length=footThickness+base_thickness,nutDepth=0,nutAddedLen=0,captiveLen=0, invert=true, autoNutOffset=true, echoPart=true);
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translate([0,dimY/2,0])
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rotate([0,90,0])
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rotate([0,0,90])
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screw_and_nut(size=screwSize,length=footThickness+base_thickness,nutDepth=0,nutAddedLen=0,captiveLen=0, invert=true, autoNutOffset=true, echoPart=true);
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translate([0,dimY-2*footSeparation,0])
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rotate([0,90,0])
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rotate([0,0,90])
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screw_and_nut(size=screwSize,length=footThickness+base_thickness,nutDepth=0,nutAddedLen=0,captiveLen=0, invert=true, autoNutOffset=true, echoPart=true);
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}
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}
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module rodHolder(rodD=8.5, screwSize=3, height=0, sideLen=0, thickness=5, space=2, negative=false) {
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screwAditionalDistance = rodD/2;
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dimX = rodD+4*screwSize+screwAditionalDistance;
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dimY = X_frames_additional_thickness+screwSize*2;
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dimZ = rodD/2+thickness;
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corner_radius = 4;
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if(negative) {
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translate([screwSize+screwAditionalDistance,-dimY/2,dimZ])
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rotate([-90,0,0])
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rotate([0,0,180])
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hole_for_screw(size=screwSize,length=dimZ+15,nutDepth=5,nutAddedLen=0,captiveLen=10, rot=90);
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translate([-screwSize-screwAditionalDistance,-dimY/2,dimZ])
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rotate([-90,0,0])
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rotate([0,0,180])
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hole_for_screw(size=screwSize,length=dimZ+15,nutDepth=5,nutAddedLen=0,captiveLen=10, rot=90);
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} else {
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difference() {
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union() {
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translate([0,-dimY/2,dimZ/2+space/4]) bcube([dimX,dimY,dimZ-space/2],cr=corner_radius,cres=10);
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if(sideLen>dimX/2)
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translate([sideLen/2-dimX/4,-dimY/2,-height/2-space/4]) bcube([dimX/2+sideLen,dimY,height-space/2],cr=corner_radius,cres=10);
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else
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translate([0,-dimY/2,-height/2-space/4]) bcube([dimX,dimY,height-space/2],cr=corner_radius,cres=10);
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}
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translate([screwSize+screwAditionalDistance,-dimY/2,dimZ])
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rotate([-90,0,0])
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rotate([0,0,180])
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hole_for_screw(size=screwSize,length=dimZ+15,nutDepth=5,nutAddedLen=0,captiveLen=10, rot=90);
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translate([-screwSize-screwAditionalDistance,-dimY/2,dimZ])
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rotate([-90,0,0])
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rotate([0,0,180])
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hole_for_screw(size=screwSize,length=dimZ+15,nutDepth=5,nutAddedLen=0,captiveLen=10, rot=90);
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standard_rod(diam=rodD, length=dimY*4, threaded=false, renderPart=true, center=true);
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rodHolder(rodD=rodD, screwSize=screwSize, negative=true);
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}
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// Draw screws
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translate([screwSize+screwAditionalDistance,-dimY/2,dimZ+0.01])
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rotate([-90,0,0])
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rotate([0,0,180])
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screw_and_nut(size=screwSize,length=dimZ+15,nutDepth=5,nutAddedLen=0,captiveLen=0, rot=90, echoPart=true);
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translate([-screwSize-screwAditionalDistance,-dimY/2,dimZ+0.01])
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rotate([-90,0,0])
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rotate([0,0,180])
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screw_and_nut(size=screwSize,length=dimZ+15,nutDepth=5,nutAddedLen=0,captiveLen=0, rot=90, echoPart=true);
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}
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}
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