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532 lines
18 KiB
OpenSCAD
532 lines
18 KiB
OpenSCAD
//////////////////////////////////////////////////////////////////////
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// LibFile: nema_steppers.scad
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// Masks and models for NEMA stepper motors.
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// To use, add these lines to the top of your file:
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// ```
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// include <BOSL/constants.scad>
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// use <BOSL/nema_steppers.scad>
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// ```
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//////////////////////////////////////////////////////////////////////
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/*
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BSD 2-Clause License
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Copyright (c) 2017, Revar Desmera
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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include <constants.scad>
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use <transforms.scad>
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use <shapes.scad>
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use <math.scad>
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use <compat.scad>
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// Section: Functions
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// Function: nema_motor_width()
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// Description: Gets width of NEMA motor of given standard size.
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// Arguments:
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// size = The standard NEMA motor size.
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function nema_motor_width(size) = lookup(size, [
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[11.0, 28.2],
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[14.0, 35.2],
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[17.0, 42.3],
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[23.0, 57.0],
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[34.0, 86.0],
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]);
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// Function: nema_motor_plinth_height()
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// Description: Gets plinth height of NEMA motor of given standard size.
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// Arguments:
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// size = The standard NEMA motor size.
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function nema_motor_plinth_height(size) = lookup(size, [
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[11.0, 1.5],
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[14.0, 2.0],
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[17.0, 2.0],
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[23.0, 1.6],
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[34.0, 2.03],
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]);
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// Function: nema_motor_plinth_diam()
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// Description: Gets plinth diameter of NEMA motor of given standard size.
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// Arguments:
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// size = The standard NEMA motor size.
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function nema_motor_plinth_diam(size) = lookup(size, [
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[11.0, 22.0],
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[14.0, 22.0],
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[17.0, 22.0],
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[23.0, 38.1],
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[34.0, 73.0],
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]);
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// Function: nema_motor_screw_spacing()
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// Description: Gets screw spacing of NEMA motor of given standard size.
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// Arguments:
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// size = The standard NEMA motor size.
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function nema_motor_screw_spacing(size) = lookup(size, [
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[11.0, 23.11],
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[14.0, 26.0],
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[17.0, 30.99],
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[23.0, 47.14],
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[34.0, 69.6],
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]);
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// Function: nema_motor_screw_size()
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// Description: Gets mount screw size of NEMA motor of given standard size.
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// Arguments:
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// size = The standard NEMA motor size.
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function nema_motor_screw_size(size) = lookup(size, [
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[11.0, 2.6],
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[14.0, 3.0],
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[17.0, 3.0],
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[23.0, 5.1],
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[34.0, 5.5],
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]);
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// Function: nema_motor_screw_depth()
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// Description: Gets mount screwhole depth of NEMA motor of given standard size.
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// Arguments:
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// size = The standard NEMA motor size.
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function nema_motor_screw_depth(size) = lookup(size, [
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[11.0, 3.0],
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[14.0, 4.5],
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[17.0, 4.5],
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[23.0, 4.8],
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[34.0, 9.0],
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]);
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// Section: Motor Models
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// Module: nema11_stepper()
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// Description: Creates a model of a NEMA 11 stepper motor.
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// Arguments:
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// h = Length of motor body. Default: 24mm
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// shaft = Shaft diameter. Default: 5mm
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// shaft_len = Length of shaft protruding out the top of the stepper motor. Default: 20mm
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// orient = Orientation of the stepper. Use the `ORIENT_` constants from `constants.scad`. Default: `ORIENT_Z`.
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// align = Alignment of the stepper. Use the constants from `constants.scad`. Default: `DOWN`.
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// Example:
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// nema11_stepper();
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module nema11_stepper(h=24, shaft=5, shaft_len=20, orient=ORIENT_Z, align=DOWN)
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{
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size = 11;
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motor_width = nema_motor_width(size);
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plinth_height = nema_motor_plinth_height(size);
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plinth_diam = nema_motor_plinth_diam(size);
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screw_spacing = nema_motor_screw_spacing(size);
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screw_size = nema_motor_screw_size(size);
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screw_depth = nema_motor_screw_depth(size);
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orient_and_align([motor_width, motor_width, h], orient, align, orig_align=DOWN) {
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difference() {
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color([0.4, 0.4, 0.4])
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cuboid(size=[motor_width, motor_width, h], chamfer=2, edges=EDGES_Z_ALL, align=DOWN);
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color("silver")
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xspread(screw_spacing)
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yspread(screw_spacing)
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cyl(r=screw_size/2, h=screw_depth*2, $fn=max(12,segs(screw_size/2)));
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}
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color([0.6, 0.6, 0.6]) {
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difference() {
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cylinder(h=plinth_height, d=plinth_diam);
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cyl(h=plinth_height*3, d=shaft+0.75);
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}
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}
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color("silver")
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cylinder(h=shaft_len, d=shaft, $fn=max(12,segs(shaft/2)));
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}
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}
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// Module: nema14_stepper()
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// Description: Creates a model of a NEMA 14 stepper motor.
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// Arguments:
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// h = Length of motor body. Default: 24mm
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// shaft = Shaft diameter. Default: 5mm
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// shaft_len = Length of shaft protruding out the top of the stepper motor. Default: 24mm
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// orient = Orientation of the stepper. Use the `ORIENT_` constants from `constants.scad`. Default: `ORIENT_Z`.
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// align = Alignment of the stepper. Use the constants from `constants.scad`. Default: `DOWN`.
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// Example:
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// nema14_stepper();
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module nema14_stepper(h=24, shaft=5, shaft_len=24, orient=ORIENT_Z, align=DOWN)
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{
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size = 14;
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motor_width = nema_motor_width(size);
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plinth_height = nema_motor_plinth_height(size);
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plinth_diam = nema_motor_plinth_diam(size);
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screw_spacing = nema_motor_screw_spacing(size);
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screw_size = nema_motor_screw_size(size);
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screw_depth = nema_motor_screw_depth(size);
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orient_and_align([motor_width, motor_width, h], orient, align, orig_align=DOWN) {
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difference() {
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color([0.4, 0.4, 0.4])
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cuboid(size=[motor_width, motor_width, h], chamfer=2, edges=EDGES_Z_ALL, align=DOWN);
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color("silver")
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xspread(screw_spacing)
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yspread(screw_spacing)
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cyl(d=screw_size, h=screw_depth*2, $fn=max(12,segs(screw_size/2)));
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}
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color([0.6, 0.6, 0.6]) {
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difference() {
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cylinder(h=plinth_height, d=plinth_diam);
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cyl(h=plinth_height*3, d=shaft+0.75);
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}
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}
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color("silver")
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cyl(h=shaft_len, d=shaft, align=UP, $fn=max(12,segs(shaft/2)));
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}
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}
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// Module: nema17_stepper()
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// Description: Creates a model of a NEMA 17 stepper motor.
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// Arguments:
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// h = Length of motor body. Default: 34mm
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// shaft = Shaft diameter. Default: 5mm
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// shaft_len = Length of shaft protruding out the top of the stepper motor. Default: 20mm
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// orient = Orientation of the stepper. Use the `ORIENT_` constants from `constants.scad`. Default: `ORIENT_Z`.
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// align = Alignment of the stepper. Use the constants from `constants.scad`. Default: `DOWN`.
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// Example:
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// nema17_stepper();
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module nema17_stepper(h=34, shaft=5, shaft_len=20, orient=ORIENT_Z, align=DOWN)
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{
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size = 17;
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motor_width = nema_motor_width(size);
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plinth_height = nema_motor_plinth_height(size);
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plinth_diam = nema_motor_plinth_diam(size);
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screw_spacing = nema_motor_screw_spacing(size);
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screw_size = nema_motor_screw_size(size);
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screw_depth = nema_motor_screw_depth(size);
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orient_and_align([motor_width, motor_width, h], orient, align, orig_align=DOWN) {
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difference() {
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color([0.4, 0.4, 0.4])
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cuboid([motor_width, motor_width, h], chamfer=2, edges=EDGES_Z_ALL, align=DOWN);
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color("silver")
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xspread(screw_spacing)
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yspread(screw_spacing)
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cyl(d=screw_size, h=screw_depth*2, $fn=max(12,segs(screw_size/2)));
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}
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color([0.6, 0.6, 0.6]) {
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difference() {
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cylinder(h=plinth_height, d=plinth_diam);
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cyl(h=plinth_height*3, d=shaft+0.75);
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}
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}
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color([0.9, 0.9, 0.9]) {
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down(h-motor_width/12) {
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fwd(motor_width/2+motor_width/24/2-0.1) {
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difference() {
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cube(size=[motor_width/8, motor_width/24, motor_width/8], center=true);
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cyl(d=motor_width/8-2, h=motor_width/6, orient=ORIENT_Y, $fn=12);
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}
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}
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}
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}
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color("silver") {
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difference() {
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cylinder(h=shaft_len, d=shaft, $fn=max(12,segs(shaft/2)));
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up(shaft_len/2+1) {
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right(shaft-0.75) {
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cube([shaft, shaft, shaft_len], center=true);
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}
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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: nema23_stepper()
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// Description: Creates a model of a NEMA 23 stepper motor.
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// Arguments:
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// h = Length of motor body. Default: 50mm
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// shaft = Shaft diameter. Default: 6.35mm
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// shaft_len = Length of shaft protruding out the top of the stepper motor. Default: 25mm
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// orient = Orientation of the stepper. Use the `ORIENT_` constants from `constants.scad`. Default: `ORIENT_Z`.
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// align = Alignment of the stepper. Use the constants from `constants.scad`. Default: `DOWN`.
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// Example:
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// nema23_stepper();
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module nema23_stepper(h=50, shaft=6.35, shaft_len=25, orient=ORIENT_Z, align=DOWN)
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{
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size = 23;
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motor_width = nema_motor_width(size);
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plinth_height = nema_motor_plinth_height(size);
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plinth_diam = nema_motor_plinth_diam(size);
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screw_spacing = nema_motor_screw_spacing(size);
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screw_size = nema_motor_screw_size(size);
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screw_depth = nema_motor_screw_depth(size);
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screw_inset = motor_width - screw_spacing + 1;
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orient_and_align([motor_width, motor_width, h], orient, align, orig_align=DOWN) {
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difference() {
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union() {
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color([0.4, 0.4, 0.4])
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cuboid([motor_width, motor_width, h], chamfer=2, edges=EDGES_Z_ALL, align=DOWN);
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color([0.4, 0.4, 0.4])
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cylinder(h=plinth_height, d=plinth_diam);
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color("silver")
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cylinder(h=shaft_len, d=shaft, $fn=max(12,segs(shaft/2)));
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}
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color([0.4, 0.4, 0.4]) {
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xspread(screw_spacing) {
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yspread(screw_spacing) {
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cyl(d=screw_size, h=screw_depth*3, $fn=max(12,segs(screw_size/2)));
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down(screw_depth) cuboid([screw_inset, screw_inset, h], align=DOWN);
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}
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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: nema34_stepper()
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// Description: Creates a model of a NEMA 34 stepper motor.
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// Arguments:
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// h = Length of motor body. Default: 75mm
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// shaft = Shaft diameter. Default: 12.7mm
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// shaft_len = Length of shaft protruding out the top of the stepper motor. Default: 32mm
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// orient = Orientation of the stepper. Use the `ORIENT_` constants from `constants.scad`. Default: `ORIENT_Z`.
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// align = Alignment of the stepper. Use the constants from `constants.scad`. Default: `DOWN`.
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// Example:
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// nema34_stepper();
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module nema34_stepper(h=75, shaft=12.7, shaft_len=32, orient=ORIENT_Z, align=DOWN)
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{
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size = 34;
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motor_width = nema_motor_width(size);
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plinth_height = nema_motor_plinth_height(size);
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plinth_diam = nema_motor_plinth_diam(size);
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screw_spacing = nema_motor_screw_spacing(size);
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screw_size = nema_motor_screw_size(size);
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screw_depth = nema_motor_screw_depth(size);
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screw_inset = motor_width - screw_spacing + 1;
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orient_and_align([motor_width, motor_width, h], orient, align, orig_align=DOWN) {
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difference() {
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union() {
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color([0.4, 0.4, 0.4])
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cuboid(size=[motor_width, motor_width, h], chamfer=2, edges=EDGES_Z_ALL, align=DOWN);
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color([0.4, 0.4, 0.4])
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cylinder(h=plinth_height, d=plinth_diam);
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color("silver")
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cylinder(h=shaft_len, d=shaft, $fn=max(24,segs(shaft/2)));
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}
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color([0.4, 0.4, 0.4]) {
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xspread(screw_spacing) {
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yspread(screw_spacing) {
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cylinder(d=screw_size, h=screw_depth*3, center=true, $fn=max(12,segs(screw_size/2)));
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down(screw_depth) downcube([screw_inset, screw_inset, h]);
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}
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}
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}
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}
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}
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}
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// Section: Masking Modules
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// Module: nema_mount_holes()
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// Description: Creates a mask to use when making standard NEMA stepper motor mounts.
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// Arguments:
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// size = The standard NEMA motor size to make a mount for.
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// depth = The thickness of the mounting hole mask. Default: 5
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// l = The length of the slots, for making an adjustable motor mount. Default: 5
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// slop = The printer-specific slop value to make parts fit just right. Default: `PRINTER_SLOP`
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// orient = Orientation of the stepper. Use the `ORIENT_` constants from `constants.scad`. Default: `ORIENT_Z`.
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// align = Alignment of the stepper. Use the constants from `constants.scad`. Default: `CENTER`.
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// Example:
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// nema_mount_holes(size=14, depth=5, l=5);
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// Example:
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// nema_mount_holes(size=17, depth=5, l=5);
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// Example:
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// nema_mount_holes(size=17, depth=5, l=0);
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module nema_mount_holes(size=17, depth=5, l=5, slop=PRINTER_SLOP, orient=ORIENT_Z, align=CENTER)
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{
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motor_width = nema_motor_width(size);
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plinth_diam = nema_motor_plinth_diam(size)+slop;
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screw_spacing = nema_motor_screw_spacing(size);
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screw_size = nema_motor_screw_size(size)+slop;
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orient_and_align([motor_width, motor_width, l], orient, align) {
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union() {
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xspread(screw_spacing) {
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yspread(screw_spacing) {
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if (l>0) {
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union() {
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yspread(l) cyl(h=depth, d=screw_size, $fn=max(8,segs(screw_size/2)));
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cube([screw_size, l, depth], center=true);
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}
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} else {
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cyl(h=depth, d=screw_size, $fn=max(8,segs(screw_size/2)));
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}
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}
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}
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}
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if (l>0) {
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union () {
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yspread(l) cyl(h=depth, d=plinth_diam);
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cube([plinth_diam, l, depth], center=true);
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}
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} else {
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cyl(h=depth, d=plinth_diam);
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}
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}
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}
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// Module: nema11_mount_holes()
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// Description: Creates a mask to use when making NEMA 11 stepper motor mounts.
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// Arguments:
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// depth = The thickness of the mounting hole mask. Default: 5
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// l = The length of the slots, for making an adjustable motor mount. Default: 5
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// slop = The printer-specific slop value to make parts fit just right. Default: `PRINTER_SLOP`
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// orient = Orientation of the stepper. Use the `ORIENT_` constants from `constants.scad`. Default: `ORIENT_Z`.
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// align = Alignment of the stepper. Use the constants from `constants.scad`. Default: `CENTER`.
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// Example:
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// nema11_mount_holes(depth=5, l=5);
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// Example:
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// nema11_mount_holes(depth=5, l=0);
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module nema11_mount_holes(depth=5, l=5, slop=PRINTER_SLOP, orient=ORIENT_Z, align=CENTER)
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{
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nema_mount_holes(size=11, depth=depth, l=l, slop=slop, orient=orient, align=align);
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}
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// Module: nema14_mount_holes()
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// Description: Creates a mask to use when making NEMA 14 stepper motor mounts.
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// Arguments:
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// depth = The thickness of the mounting hole mask. Default: 5
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// l = The length of the slots, for making an adjustable motor mount. Default: 5
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// slop = The printer-specific slop value to make parts fit just right. Default: `PRINTER_SLOP`
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// orient = Orientation of the stepper. Use the `ORIENT_` constants from `constants.scad`. Default: `ORIENT_Z`.
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// align = Alignment of the stepper. Use the constants from `constants.scad`. Default: `CENTER`.
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// Example:
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// nema14_mount_holes(depth=5, l=5);
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// Example:
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// nema14_mount_holes(depth=5, l=0);
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module nema14_mount_holes(depth=5, l=5, slop=PRINTER_SLOP, orient=ORIENT_Z, align=CENTER)
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{
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nema_mount_holes(size=14, depth=depth, l=l, slop=slop, orient=orient, align=align);
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}
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// Module: nema17_mount_holes()
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// Description: Creates a mask to use when making NEMA 17 stepper motor mounts.
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// Arguments:
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// depth = The thickness of the mounting hole mask. Default: 5
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// l = The length of the slots, for making an adjustable motor mount. Default: 5
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// slop = The printer-specific slop value to make parts fit just right. Default: `PRINTER_SLOP`
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// orient = Orientation of the stepper. Use the `ORIENT_` constants from `constants.scad`. Default: `ORIENT_Z`.
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// align = Alignment of the stepper. Use the constants from `constants.scad`. Default: `CENTER`.
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// Example:
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// nema17_mount_holes(depth=5, l=5);
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// Example:
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// nema17_mount_holes(depth=5, l=0);
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module nema17_mount_holes(depth=5, l=5, slop=PRINTER_SLOP, orient=ORIENT_Z, align=CENTER)
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{
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nema_mount_holes(size=17, depth=depth, l=l, slop=slop, orient=orient, align=align);
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}
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// Module: nema23_mount_holes()
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// Description: Creates a mask to use when making NEMA 23 stepper motor mounts.
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// Arguments:
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// depth = The thickness of the mounting hole mask. Default: 5
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// l = The length of the slots, for making an adjustable motor mount. Default: 5
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// slop = The printer-specific slop value to make parts fit just right. Default: `PRINTER_SLOP`
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// orient = Orientation of the stepper. Use the `ORIENT_` constants from `constants.scad`. Default: `ORIENT_Z`.
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// align = Alignment of the stepper. Use the constants from `constants.scad`. Default: `CENTER`.
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// Example:
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// nema23_mount_holes(depth=5, l=5);
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// Example:
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// nema23_mount_holes(depth=5, l=0);
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module nema23_mount_holes(depth=5, l=5, slop=PRINTER_SLOP, orient=ORIENT_Z, align=CENTER)
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{
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nema_mount_holes(size=23, depth=depth, l=l, slop=slop, orient=orient, align=align);
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}
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// Module: nema34_mount_holes()
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// Description: Creates a mask to use when making NEMA 34 stepper motor mounts.
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// Arguments:
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// depth = The thickness of the mounting hole mask. Default: 5
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// l = The length of the slots, for making an adjustable motor mount. Default: 5
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// slop = The printer-specific slop value to make parts fit just right. Default: `PRINTER_SLOP`
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// orient = Orientation of the stepper. Use the `ORIENT_` constants from `constants.scad`. Default: `ORIENT_Z`.
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// align = Alignment of the stepper. Use the constants from `constants.scad`. Default: `CENTER`.
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// Example:
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// nema34_mount_holes(depth=5, l=5);
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// Example:
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// nema34_mount_holes(depth=5, l=0);
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module nema34_mount_holes(depth=5, l=5, slop=PRINTER_SLOP, orient=ORIENT_Z, align=CENTER)
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{
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nema_mount_holes(size=34, depth=depth, l=l, slop=slop, orient=orient, align=align);
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}
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// Module: nema34_mount_holes()
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// Description: Creates a mask to use when making NEMA 34 stepper motor mounts.
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// Arguments:
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// depth = The thickness of the mounting hole mask. Default: 5
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// l = The length of the slots, for making an adjustable motor mount. Default: 5
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// slop = The printer-specific slop value to make parts fit just right. Default: `PRINTER_SLOP`
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// orient = Orientation of the stepper. Use the `ORIENT_` constants from `constants.scad`. Default: `ORIENT_Z`.
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// align = Alignment of the stepper. Use the constants from `constants.scad`. Default: `CENTER`.
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// Example:
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// nema34_mount_holes(depth=5, l=5);
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// Example:
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// nema34_mount_holes(depth=5, l=0);
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module nema34_mount_holes(depth=5, l=5, slop=PRINTER_SLOP, orient=ORIENT_Z, align=CENTER)
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{
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nema_mount_holes(size=34, depth=depth, l=l, slop=slop, orient=orient, align=align);
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}
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// vim: noexpandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap
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