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Added pulley model and license, updated assembly.scad.

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Martin 2018-11-06 03:28:01 +01:00
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165
LICENSE.md 100644
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@ -0,0 +1,165 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
This version of the GNU Lesser General Public License incorporates
the terms and conditions of version 3 of the GNU General Public
License, supplemented by the additional permissions listed below.
0. Additional Definitions.
As used herein, "this License" refers to version 3 of the GNU Lesser
General Public License, and the "GNU GPL" refers to version 3 of the GNU
General Public License.
"The Library" refers to a covered work governed by this License,
other than an Application or a Combined Work as defined below.
An "Application" is any work that makes use of an interface provided
by the Library, but which is not otherwise based on the Library.
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of using an interface provided by the Library.
A "Combined Work" is a work produced by combining or linking an
Application with the Library. The particular version of the Library
with which the Combined Work was made is also called the "Linked
Version".
The "Minimal Corresponding Source" for a Combined Work means the
Corresponding Source for the Combined Work, excluding any source code
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The "Corresponding Application Code" for a Combined Work means the
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and utility programs needed for reproducing the Combined Work from the
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4
README.md
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@ -4,6 +4,8 @@ Use [OpenScad](www.openscad.org/) to compile end export STL models for printing.
File `assembly.scad` contains all parts assembled together for preview.
When opening file individually, uncomment single function call in the beginning of the file to render this particular part.
![preview](preview.jpeg)
Bill of non-printable materials:
- 2x stepper motor, flange nema17
@ -21,4 +23,4 @@ Bill of non-printable materials:
- 4x M2.5x10 screws (for switches)
- 5x 604zz bearings
- 1x MXL belt 8 mm wide, 1500 mm
- 2x MXL gears for 5 mm axis
- 2x MXL gears for 5 mm axis

22
assembly.scad
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@ -1,15 +1,19 @@
include <settings.scad>;
// files bellow contain printable solids
include <carriage.scad>;
include <settings.scad>;
include <y_end1.scad>;
include <y_end2.scad>;
include <belt_clamp.scad>;
include <x_end.scad>;
use <pulley.scad>;
use <Belt_Generator.scad>;
for(mul = [1,-1])
translate([0,-mul*136+80,linear_bearing_r]) scale([1,mul,1]) rotate([90,0,0])
x_end();
translate([0,-mul*136+80,linear_bearing_r]) scale([1,mul,1])
{
rotate([90,0,0]) x_end();
translate([0,-35,-4]) Pulley16Teeth();
}
translate([-base_width/2,0,0])
{
@ -41,4 +45,14 @@ module carriage_assembly()
guide(true);
}
}
}
// belt arrangement is for preview only!
h = 11.0;
bl = 300+45;
color([0.1,0.1,0.1]){
for(mul = [1,-1]){
scale([mul,1,1]) translate([6,-90,h])rotate([0,0,90]) belting("straight",belt_profile, belt_length = bl, belting_width = 8 );
translate([-115,base_width/2+mul*6,h]) scale([1,-mul,1]) belting("straight",belt_profile, belt_length = bl-40, belting_width = 8 );
}
}

1
common.scad
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@ -1,4 +1,3 @@
// file with helpful modules only
module screw_hole(dia,depth, nut_holes)
{
cylinder(r=dia/2, h=depth, $fn=8);

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711
pulley.scad 100644
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// Parametric Pulley with multiple belt profiles
// by droftarts January 2012
// Based on pulleys by:
// http://www.thingiverse.com/thing:11256 by me!
// https://github.com/prusajr/PrusaMendel by Josef Prusa
// http://www.thingiverse.com/thing:3104 by GilesBathgate
// http://www.thingiverse.com/thing:2079 by nophead
// dxf tooth data from http://oem.cadregister.com/asp/PPOW_Entry.asp?company=915217&elementID=07807803/METRIC/URETH/WV0025/F
// pulley diameter checked and modelled from data at http://www.sdp-si.com/D265/HTML/D265T016.html
/**
* @name Pulley
* @category Printed
* @using 1 x m3 nut, normal or nyloc
* @using 1 x m3x10 set screw or 1 x m3x8 grub screw
*/
Pulley16Teeth();
module Pulley16Teeth()
{
Pulley(
teeth = 18, // Number of teeth, standard Mendel T5 belt = 8, gives Outside Diameter of 11.88mm
profile = 1, // 1=MXL 2=40DP 3=XL 4=H 5=T2.5 6=T5 7=T10 8=AT5 9=HTD_3mm 10=HTD_5mm 11=HTD_8mm 12=GT2_2mm 13=GT2_3mm 14=GT2_5mm
motor_shaft = 5.5, // NEMA17 motor shaft exact diameter = 5
m3_dia = 3.5, // 3mm hole diameter
m3_nut_hex = 1, // 1 for hex, 0 for square nut
m3_nut_flats = 5.8, // normal M3 hex nut exact width = 5.5
m3_nut_depth = 2.8, // normal M3 hex nut exact depth = 2.4, nyloc = 4
retainer = 1, // Belt retainer above teeth, 0 = No, 1 = Yes
retainer_ht = 1, // height of retainer flange over pulley, standard = 1.5
idler = 1, // Belt retainer below teeth, 0 = No, 1 = Yes
idler_ht = 0, // height of idler flange over pulley, standard = 1.5
pulley_t_ht = 10, // length of toothed part of pulley, standard = 12
pulley_b_ht = 7.5, // pulley base height, standard = 8. Set to same as idler_ht if you want an idler but no pulley.
pulley_b_dia = 17.1, // pulley base diameter, standard = 20
no_of_nuts = 1, // number of captive nuts required, standard = 1
nut_angle = 90, // angle between nuts, standard = 90
nut_shaft_distance = 0.8, // distance between inner face of nut and shaft, can be negative.
// ********************************
// ** Scaling tooth for good fit **
// ********************************
// To improve fit of belt to pulley, set the following constant. Decrease or increase by 0.1mm at a time. We are modelling the *BELT* tooth here, not the tooth on the pulley. Increasing the number will *decrease* the pulley tooth size. Increasing the tooth width will also scale proportionately the tooth depth, to maintain the shape of the tooth, and increase how far into the pulley the tooth is indented. Can be negative
additional_tooth_width = 0.2, //mm
// If you need more tooth depth than this provides, adjust the following constant. However, this will cause the shape of the tooth to change.
additional_tooth_depth = 0 //mm
);
}
/*
Pulley(
teeth = 80, // Number of teeth, standard Mendel T5 belt = 8, gives Outside Diameter of 11.88mm
profile = 12, // 1=MXL 2=40DP 3=XL 4=H 5=T2.5 6=T5 7=T10 8=AT5 9=HTD_3mm 10=HTD_5mm 11=HTD_8mm 12=GT2_2mm 13=GT2_3mm 14=GT2_5mm
motor_shaft = 5.2, // NEMA17 motor shaft exact diameter = 5
m3_dia = 3.2, // 3mm hole diameter
m3_nut_hex = 1, // 1 for hex, 0 for square nut
m3_nut_flats = 5.7, // normal M3 hex nut exact width = 5.5
m3_nut_depth = 2.7, // normal M3 hex nut exact depth = 2.4, nyloc = 4
retainer = 1, // Belt retainer above teeth, 0 = No, 1 = Yes
retainer_ht = 1, // height of retainer flange over pulley, standard = 1.5
idler = 1, // Belt retainer below teeth, 0 = No, 1 = Yes
idler_ht = 1, // height of idler flange over pulley, standard = 1.5
pulley_t_ht = 7, // length of toothed part of pulley, standard = 12
pulley_b_ht = 0, // pulley base height, standard = 8. Set to same as idler_ht if you want an idler but no pulley.
pulley_b_dia = 20, // pulley base diameter, standard = 20
no_of_nuts = 1, // number of captive nuts required, standard = 1
nut_angle = 90, // angle between nuts, standard = 90
nut_shaft_distance = 1.2, // distance between inner face of nut and shaft, can be negative.
// ********************************
// ** Scaling tooth for good fit **
// ********************************
additional_tooth_width = 0.2, //mm
// If you need more tooth depth than this provides, adjust the following constant. However, this will cause the shape of the tooth to change.
additional_tooth_depth = 0 //mm
);
*/
// tuneable constants
module Pulley(
teeth = 80, // Number of teeth, standard Mendel T5 belt = 8, gives Outside Diameter of 11.88mm
profile = 12, // 1=MXL 2=40DP 3=XL 4=H 5=T2.5 6=T5 7=T10 8=AT5 9=HTD_3mm 10=HTD_5mm 11=HTD_8mm 12=GT2_2mm 13=GT2_3mm 14=GT2_5mm
motor_shaft = 5.2, // NEMA17 motor shaft exact diameter = 5
m3_dia = 3.2, // 3mm hole diameter
m3_nut_hex = 1, // 1 for hex, 0 for square nut
m3_nut_flats = 5.7, // normal M3 hex nut exact width = 5.5
m3_nut_depth = 2.7, // normal M3 hex nut exact depth = 2.4, nyloc = 4
retainer = 1, // Belt retainer above teeth, 0 = No, 1 = Yes
retainer_ht = 1, // height of retainer flange over pulley, standard = 1.5
idler = 1, // Belt retainer below teeth, 0 = No, 1 = Yes
idler_ht = 1, // height of idler flange over pulley, standard = 1.5
pulley_t_ht = 7, // length of toothed part of pulley, standard = 12
pulley_b_ht = 0, // pulley base height, standard = 8. Set to same as idler_ht if you want an idler but no pulley.
pulley_b_dia = 20, // pulley base diameter, standard = 20
no_of_nuts = 1, // number of captive nuts required, standard = 1
nut_angle = 90, // angle between nuts, standard = 90
nut_shaft_distance = 1.2, // distance between inner face of nut and shaft, can be negative.
// ********************************
// ** Scaling tooth for good fit **
// ********************************
/* To improve fit of belt to pulley, set the following constant. Decrease or increase by 0.1mm at a time. We are modelling the *BELT* tooth here, not the tooth on the pulley. Increasing the number will *decrease* the pulley tooth size. Increasing the tooth width will also scale proportionately the tooth depth, to maintain the shape of the tooth, and increase how far into the pulley the tooth is indented. Can be negative */
additional_tooth_width = 0.2, //mm
// If you need more tooth depth than this provides, adjust the following constant. However, this will cause the shape of the tooth to change.
additional_tooth_depth = 0 //mm
)
{
translate([0,0,idler_ht])
{
// calculated constants
nut_elevation = pulley_b_ht/2;
m3_nut_points = 2*((m3_nut_flats/2)/cos(30)); // This is needed for the nut trap
// The following set the pulley diameter for a given number of teeth
MXL_pulley_dia = tooth_spacing (2.032,0.254,teeth);
40DP_pulley_dia = tooth_spacing (2.07264,0.1778,teeth);
XL_pulley_dia = tooth_spacing (5.08,0.254,teeth);
H_pulley_dia = tooth_spacing (9.525,0.381,teeth);
T2_5_pulley_dia = tooth_spaceing_curvefit (0.7467,0.796,1.026,teeth);
T5_pulley_dia = tooth_spaceing_curvefit (0.6523,1.591,1.064,teeth);
T10_pulley_dia = tooth_spacing (10,0.93,teeth);
AT5_pulley_dia = tooth_spaceing_curvefit (0.6523,1.591,1.064,teeth);
HTD_3mm_pulley_dia = tooth_spacing (3,0.381,teeth);
HTD_5mm_pulley_dia = tooth_spacing (5,0.5715,teeth);
HTD_8mm_pulley_dia = tooth_spacing (8,0.6858,teeth);
GT2_2mm_pulley_dia = tooth_spacing (2,0.254,teeth);
GT2_3mm_pulley_dia = tooth_spacing (3,0.381,teeth);
GT2_5mm_pulley_dia = tooth_spacing (5,0.5715,teeth);
// The following calls the pulley creation part, and passes the pulley diameter and tooth width to that module
if ( profile == 1 )
{
pulley ( "MXL" , MXL_pulley_dia , 0.508 , 1.321,
teeth,
profile,
motor_shaft,
m3_dia,
m3_nut_hex,
m3_nut_flats,
m3_nut_depth,
retainer,
retainer_ht,
idler,
idler_ht,
pulley_t_ht,
pulley_b_ht,
pulley_b_dia,
no_of_nuts,
nut_angle,
nut_shaft_distance,
additional_tooth_width,
additional_tooth_depth,
nut_elevation,
m3_nut_points
);
}
if ( profile == 2 )
{
pulley ( "40 D.P." , 40DP_pulley_dia , 0.457 , 1.226,
teeth,
profile,
motor_shaft,
m3_dia,
m3_nut_hex,
m3_nut_flats,
m3_nut_depth,
retainer,
retainer_ht,
idler,
idler_ht,
pulley_t_ht,
pulley_b_ht,
pulley_b_dia,
no_of_nuts,
nut_angle,
nut_shaft_distance,
additional_tooth_width,
additional_tooth_depth,
nut_elevation,
m3_nut_points
);
}
if ( profile == 3 ) { pulley ( "XL" , XL_pulley_dia , 1.27, 3.051,
teeth,
profile,
motor_shaft,
m3_dia,
m3_nut_hex,
m3_nut_flats,
m3_nut_depth,
retainer,
retainer_ht,
idler,
idler_ht,
pulley_t_ht,
pulley_b_ht,
pulley_b_dia,
no_of_nuts,
nut_angle,
nut_shaft_distance,
additional_tooth_width,
additional_tooth_depth,
nut_elevation,
m3_nut_points
);
}
if ( profile == 4 ) { pulley ( "H" , H_pulley_dia ,1.905 , 5.359,
teeth,
profile,
motor_shaft,
m3_dia,
m3_nut_hex,
m3_nut_flats,
m3_nut_depth,
retainer,
retainer_ht,
idler,
idler_ht,
pulley_t_ht,
pulley_b_ht,
pulley_b_dia,
no_of_nuts,
nut_angle,
nut_shaft_distance,
additional_tooth_width,
additional_tooth_depth,
nut_elevation,
m3_nut_points
);
}
if ( profile == 5 ) { pulley ( "T2.5" , T2_5_pulley_dia , 0.7 , 1.678,
teeth,
profile,
motor_shaft,
m3_dia,
m3_nut_hex,
m3_nut_flats,
m3_nut_depth,
retainer,
retainer_ht,
idler,
idler_ht,
pulley_t_ht,
pulley_b_ht,
pulley_b_dia,
no_of_nuts,
nut_angle,
nut_shaft_distance,
additional_tooth_width,
additional_tooth_depth,
nut_elevation,
m3_nut_points
);
}
if ( profile == 6 ) { pulley ( "T5" , T5_pulley_dia , 1.19 , 3.264,
teeth,
profile,
motor_shaft,
m3_dia,
m3_nut_hex,
m3_nut_flats,
m3_nut_depth,
retainer,
retainer_ht,
idler,
idler_ht,
pulley_t_ht,
pulley_b_ht,
pulley_b_dia,
no_of_nuts,
nut_angle,
nut_shaft_distance,
additional_tooth_width,
additional_tooth_depth,
nut_elevation,
m3_nut_points
);
}
if ( profile == 7 ) { pulley ( "T10" , T10_pulley_dia , 2.5 , 6.13,
teeth,
profile,
motor_shaft,
m3_dia,
m3_nut_hex,
m3_nut_flats,
m3_nut_depth,
retainer,
retainer_ht,
idler,
idler_ht,
pulley_t_ht,
pulley_b_ht,
pulley_b_dia,
no_of_nuts,
nut_angle,
nut_shaft_distance,
additional_tooth_width,
additional_tooth_depth,
nut_elevation,
m3_nut_points
);
}
if ( profile == 8 ) { pulley ( "AT5" , AT5_pulley_dia , 1.19 , 4.268,
teeth,
profile,
motor_shaft,
m3_dia,
m3_nut_hex,
m3_nut_flats,
m3_nut_depth,
retainer,
retainer_ht,
idler,
idler_ht,
pulley_t_ht,
pulley_b_ht,
pulley_b_dia,
no_of_nuts,
nut_angle,
nut_shaft_distance,
additional_tooth_width,
additional_tooth_depth,
nut_elevation,
m3_nut_points
);
}
if ( profile == 9 ) { pulley ( "HTD 3mm" , HTD_3mm_pulley_dia , 1.289 , 2.27,
teeth,
profile,
motor_shaft,
m3_dia,
m3_nut_hex,
m3_nut_flats,
m3_nut_depth,
retainer,
retainer_ht,
idler,
idler_ht,
pulley_t_ht,
pulley_b_ht,
pulley_b_dia,
no_of_nuts,
nut_angle,
nut_shaft_distance,
additional_tooth_width,
additional_tooth_depth,
nut_elevation,
m3_nut_points
);
}
if ( profile == 10 ) { pulley ( "HTD 5mm" , HTD_5mm_pulley_dia , 2.199 , 3.781,
teeth,
profile,
motor_shaft,
m3_dia,
m3_nut_hex,
m3_nut_flats,
m3_nut_depth,
retainer,
retainer_ht,
idler,
idler_ht,
pulley_t_ht,
pulley_b_ht,
pulley_b_dia,
no_of_nuts,
nut_angle,
nut_shaft_distance,
additional_tooth_width,
additional_tooth_depth,
nut_elevation,
m3_nut_points
);
}
if ( profile == 11 ) { pulley ( "HTD 8mm" , HTD_8mm_pulley_dia , 3.607 , 6.603,
teeth,
profile,
motor_shaft,
m3_dia,
m3_nut_hex,
m3_nut_flats,
m3_nut_depth,
retainer,
retainer_ht,
idler,
idler_ht,
pulley_t_ht,
pulley_b_ht,
pulley_b_dia,
no_of_nuts,
nut_angle,
nut_shaft_distance,
additional_tooth_width,
additional_tooth_depth,
nut_elevation,
m3_nut_points
);
}
if ( profile == 12 ) { pulley ( "GT2 2mm" , GT2_2mm_pulley_dia , 0.764 , 1.494,
teeth,
profile,
motor_shaft,
m3_dia,
m3_nut_hex,
m3_nut_flats,
m3_nut_depth,
retainer,
retainer_ht,
idler,
idler_ht,
pulley_t_ht,
pulley_b_ht,
pulley_b_dia,
no_of_nuts,
nut_angle,
nut_shaft_distance,
additional_tooth_width,
additional_tooth_depth,
nut_elevation,
m3_nut_points
);
}
if ( profile == 13 ) { pulley ( "GT2 3mm" , GT2_3mm_pulley_dia , 1.169 , 2.31,
teeth,
profile,
motor_shaft,
m3_dia,
m3_nut_hex,
m3_nut_flats,
m3_nut_depth,
retainer,
retainer_ht,
idler,
idler_ht,
pulley_t_ht,
pulley_b_ht,
pulley_b_dia,
no_of_nuts,
nut_angle,
nut_shaft_distance,
additional_tooth_width,
additional_tooth_depth,
nut_elevation,
m3_nut_points
);
}
if ( profile == 14 ) { pulley ( "GT2 5mm" , GT2_5mm_pulley_dia , 1.969 , 3.952,
teeth,
profile,
motor_shaft,
m3_dia,
m3_nut_hex,
m3_nut_flats,
m3_nut_depth,
retainer,
retainer_ht,
idler,
idler_ht,
pulley_t_ht,
pulley_b_ht,
pulley_b_dia,
no_of_nuts,
nut_angle,
nut_shaft_distance,
additional_tooth_width,
additional_tooth_depth,
nut_elevation,
m3_nut_points
);
}
}
// Functions
function tooth_spaceing_curvefit (b,c,d,teeth)
= ((c * pow(teeth,d)) / (b + pow(teeth,d))) * teeth ;
function tooth_spacing(tooth_pitch,pitch_line_offset,teeth)
= (2*((teeth*tooth_pitch)/(3.14159265*2)-pitch_line_offset)) ;
// Main Module
module pulley( belt_type , pulley_OD , tooth_depth , tooth_width,
teeth,
profile,
motor_shaft,
m3_dia,
m3_nut_hex,
m3_nut_flats,
m3_nut_depth,
retainer,
retainer_ht,
idler,
idler_ht,
pulley_t_ht,
pulley_b_ht,
pulley_b_dia,
no_of_nuts,
nut_angle,
nut_shaft_distance,
additional_tooth_width,
additional_tooth_depth,
nut_elevation,
m3_nut_points)
{
echo (str("Belt type = ",belt_type,"; Number of teeth = ",teeth,"; Pulley Outside Diameter = ",pulley_OD,"mm "));
tooth_distance_from_centre = sqrt( pow(pulley_OD/2,2) - pow((tooth_width+additional_tooth_width)/2,2));
tooth_width_scale = (tooth_width + additional_tooth_width ) / tooth_width;
tooth_depth_scale = ((tooth_depth + additional_tooth_depth ) / tooth_depth) ;
// ************************************************************************
// *** uncomment the following line if pulley is wider than puller base ***
// ************************************************************************
// translate ([0,0, pulley_b_ht + pulley_t_ht + retainer_ht ]) rotate ([0,180,0])
difference()
{
union()
{
//base
if ( pulley_b_ht < 2 ) { echo ("CAN'T DRAW PULLEY BASE, HEIGHT LESS THAN 2!!!"); } else {
rotate_extrude($fn=pulley_b_dia*2)
{
square([pulley_b_dia/2-1,pulley_b_ht]);
square([pulley_b_dia/2,pulley_b_ht-1]);
translate([pulley_b_dia/2-1,pulley_b_ht-1]) circle(1);
}
}
difference()
{
//shaft - diameter is outside diameter of pulley
translate([0,0,pulley_b_ht])
rotate ([0,0,360/(teeth*4)])
cylinder(r=pulley_OD/2,h=pulley_t_ht, $fn=teeth*4);
//teeth - cut out of shaft
for(i=[1:teeth])
rotate([0,0,i*(360/teeth)])
translate([0,-tooth_distance_from_centre,pulley_b_ht -1])
scale ([ tooth_width_scale , tooth_depth_scale , 1 ])
{
if ( profile == 1 ) { MXL(pulley_t_ht);}
if ( profile == 2 ) { 40DP(pulley_t_ht);}
if ( profile == 3 ) { XL(pulley_t_ht);}
if ( profile == 4 ) { H(pulley_t_ht);}
if ( profile == 5 ) { T2_5(pulley_t_ht);}
if ( profile == 6 ) { T5(pulley_t_ht);}
if ( profile == 7 ) { T10(pulley_t_ht);}
if ( profile == 8 ) { AT5(pulley_t_ht);}
if ( profile == 9 ) { HTD_3mm(pulley_t_ht);}
if ( profile == 10 ) { HTD_5mm(pulley_t_ht);}
if ( profile == 11 ) { HTD_8mm(pulley_t_ht);}
if ( profile == 12 ) { GT2_2mm(pulley_t_ht);}
if ( profile == 13 ) { GT2_3mm(pulley_t_ht);}
if ( profile == 14 ) { GT2_5mm(pulley_t_ht);}
}
}
//belt retainer / idler
if ( retainer > 0 ) {translate ([0,0, pulley_b_ht + pulley_t_ht ])
rotate_extrude($fn=teeth*4)
polygon([[0,0],[pulley_OD/2,0],[pulley_OD/2 + retainer_ht , retainer_ht],[0 , retainer_ht],[0,0]]);}
if ( idler > 0 ) {translate ([0,0, pulley_b_ht - idler_ht ])
rotate_extrude($fn=teeth*4)
polygon([[0,0],[pulley_OD/2 + idler_ht,0],[pulley_OD/2 , idler_ht],[0 , idler_ht],[0,0]]);}
}
//hole for motor shaft
translate([0,0,-1])cylinder(r=motor_shaft/2,h=pulley_b_ht + pulley_t_ht + retainer_ht + 2,$fn=motor_shaft*4);
//captive nut and grub screw holes
if ( pulley_b_ht < m3_nut_flats ) { echo ("CAN'T DRAW CAPTIVE NUTS, HEIGHT LESS THAN NUT DIAMETER!!!"); } else {
if ( (pulley_b_dia - motor_shaft)/2 < m3_nut_depth + 3 ) { echo ("CAN'T DRAW CAPTIVE NUTS, DIAMETER TOO SMALL FOR NUT DEPTH!!!"); } else {
for(j=[1:no_of_nuts]) rotate([0,0,j*nut_angle])
translate([0,0,nut_elevation])rotate([90,0,0])
union()
{
//entrance
translate([0,-pulley_b_ht/4-0.5,motor_shaft/2+m3_nut_depth/2+nut_shaft_distance]) cube([m3_nut_flats,pulley_b_ht/2+1,m3_nut_depth],center=true);
//nut
if ( m3_nut_hex > 0 )
{
// hex nut
translate([0,0.25,motor_shaft/2+m3_nut_depth/2+nut_shaft_distance]) rotate([0,0,30]) cylinder(r=m3_nut_points/2,h=m3_nut_depth,center=true,$fn=6);
} else {
// square nut
translate([0,0.25,motor_shaft/2+m3_nut_depth/2+nut_shaft_distance]) cube([m3_nut_flats,m3_nut_flats,m3_nut_depth],center=true);
}
//grub screw hole
rotate([0,0,22.5])cylinder(r=m3_dia/2,h=pulley_b_dia/2+1,$fn=8);
}
}}
}
}
}
// Tooth profile modules
module MXL(pulley_t_ht)
{
linear_extrude(height=pulley_t_ht+2) polygon([[-0.660421,-0.5],[-0.660421,0],[-0.621898,0.006033],[-0.587714,0.023037],[-0.560056,0.049424],[-0.541182,0.083609],[-0.417357,0.424392],[-0.398413,0.458752],[-0.370649,0.48514],[-0.336324,0.502074],[-0.297744,0.508035],[0.297744,0.508035],[0.336268,0.502074],[0.370452,0.48514],[0.39811,0.458752],[0.416983,0.424392],[0.540808,0.083609],[0.559752,0.049424],[0.587516,0.023037],[0.621841,0.006033],[0.660421,0],[0.660421,-0.5]]);
}
module 40DP(pulley_t_ht)
{
linear_extrude(height=pulley_t_ht+2) polygon([[-0.612775,-0.5],[-0.612775,0],[-0.574719,0.010187],[-0.546453,0.0381],[-0.355953,0.3683],[-0.327604,0.405408],[-0.291086,0.433388],[-0.248548,0.451049],[-0.202142,0.4572],[0.202494,0.4572],[0.248653,0.451049],[0.291042,0.433388],[0.327609,0.405408],[0.356306,0.3683],[0.546806,0.0381],[0.574499,0.010187],[0.612775,0],[0.612775,-0.5]]);
}
module XL(pulley_t_ht)
{
linear_extrude(height=pulley_t_ht+2) polygon([[-1.525411,-1],[-1.525411,0],[-1.41777,0.015495],[-1.320712,0.059664],[-1.239661,0.129034],[-1.180042,0.220133],[-0.793044,1.050219],[-0.733574,1.141021],[-0.652507,1.210425],[-0.555366,1.254759],[-0.447675,1.270353],[0.447675,1.270353],[0.555366,1.254759],[0.652507,1.210425],[0.733574,1.141021],[0.793044,1.050219],[1.180042,0.220133],[1.239711,0.129034],[1.320844,0.059664],[1.417919,0.015495],[1.525411,0],[1.525411,-1]]);
}
module H(pulley_t_ht)
{
linear_extrude(height=pulley_t_ht+2) polygon([[-2.6797,-1],[-2.6797,0],[-2.600907,0.006138],[-2.525342,0.024024],[-2.45412,0.052881],[-2.388351,0.091909],[-2.329145,0.140328],[-2.277614,0.197358],[-2.234875,0.262205],[-2.202032,0.334091],[-1.75224,1.57093],[-1.719538,1.642815],[-1.676883,1.707663],[-1.62542,1.764693],[-1.566256,1.813112],[-1.500512,1.85214],[-1.4293,1.880997],[-1.353742,1.898883],[-1.274949,1.905021],[1.275281,1.905021],[1.354056,1.898883],[1.429576,1.880997],[1.500731,1.85214],[1.566411,1.813112],[1.625508,1.764693],[1.676919,1.707663],[1.719531,1.642815],[1.752233,1.57093],[2.20273,0.334091],[2.235433,0.262205],[2.278045,0.197358],[2.329455,0.140328],[2.388553,0.091909],[2.454233,0.052881],[2.525384,0.024024],[2.600904,0.006138],[2.6797,0],[2.6797,-1]]);
}
module T2_5(pulley_t_ht)
{
linear_extrude(height=pulley_t_ht+2) polygon([[-0.839258,-0.5],[-0.839258,0],[-0.770246,0.021652],[-0.726369,0.079022],[-0.529167,0.620889],[-0.485025,0.67826],[-0.416278,0.699911],[0.416278,0.699911],[0.484849,0.67826],[0.528814,0.620889],[0.726369,0.079022],[0.770114,0.021652],[0.839258,0],[0.839258,-0.5]]);
}
module T5(pulley_t_ht)
{
linear_extrude(height=pulley_t_ht+2) polygon([[-1.632126,-0.5],[-1.632126,0],[-1.568549,0.004939],[-1.507539,0.019367],[-1.450023,0.042686],[-1.396912,0.074224],[-1.349125,0.113379],[-1.307581,0.159508],[-1.273186,0.211991],[-1.246868,0.270192],[-1.009802,0.920362],[-0.983414,0.978433],[-0.949018,1.030788],[-0.907524,1.076798],[-0.859829,1.115847],[-0.80682,1.147314],[-0.749402,1.170562],[-0.688471,1.184956],[-0.624921,1.189895],[0.624971,1.189895],[0.688622,1.184956],[0.749607,1.170562],[0.807043,1.147314],[0.860055,1.115847],[0.907754,1.076798],[0.949269,1.030788],[0.9837,0.978433],[1.010193,0.920362],[1.246907,0.270192],[1.273295,0.211991],[1.307726,0.159508],[1.349276,0.113379],[1.397039,0.074224],[1.450111,0.042686],[1.507589,0.019367],[1.568563,0.004939],[1.632126,0],[1.632126,-0.5]]);
}
module T10(pulley_t_ht)
{
linear_extrude(height=pulley_t_ht+2) polygon([[-3.06511,-1],[-3.06511,0],[-2.971998,0.007239],[-2.882718,0.028344],[-2.79859,0.062396],[-2.720931,0.108479],[-2.651061,0.165675],[-2.590298,0.233065],[-2.539962,0.309732],[-2.501371,0.394759],[-1.879071,2.105025],[-1.840363,2.190052],[-1.789939,2.266719],[-1.729114,2.334109],[-1.659202,2.391304],[-1.581518,2.437387],[-1.497376,2.47144],[-1.408092,2.492545],[-1.314979,2.499784],[1.314979,2.499784],[1.408091,2.492545],[1.497371,2.47144],[1.581499,2.437387],[1.659158,2.391304],[1.729028,2.334109],[1.789791,2.266719],[1.840127,2.190052],[1.878718,2.105025],[2.501018,0.394759],[2.539726,0.309732],[2.59015,0.233065],[2.650975,0.165675],[2.720887,0.108479],[2.798571,0.062396],[2.882713,0.028344],[2.971997,0.007239],[3.06511,0],[3.06511,-1]]);
}
module AT5(pulley_t_ht)
{
linear_extrude(height=pulley_t_ht+2) polygon([[-2.134129,-0.75],[-2.134129,0],[-2.058023,0.005488],[-1.984595,0.021547],[-1.914806,0.047569],[-1.849614,0.082947],[-1.789978,0.127073],[-1.736857,0.179338],[-1.691211,0.239136],[-1.653999,0.305859],[-1.349199,0.959203],[-1.286933,1.054635],[-1.201914,1.127346],[-1.099961,1.173664],[-0.986896,1.18992],[0.986543,1.18992],[1.099614,1.173664],[1.201605,1.127346],[1.286729,1.054635],[1.349199,0.959203],[1.653646,0.305859],[1.690859,0.239136],[1.73651,0.179338],[1.789644,0.127073],[1.849305,0.082947],[1.914539,0.047569],[1.984392,0.021547],[2.057906,0.005488],[2.134129,0],[2.134129,-0.75]]);
}
module HTD_3mm(pulley_t_ht)
{
linear_extrude(height=pulley_t_ht+2) polygon([[-1.135062,-0.5],[-1.135062,0],[-1.048323,0.015484],[-0.974284,0.058517],[-0.919162,0.123974],[-0.889176,0.206728],[-0.81721,0.579614],[-0.800806,0.653232],[-0.778384,0.72416],[-0.750244,0.792137],[-0.716685,0.856903],[-0.678005,0.918199],[-0.634505,0.975764],[-0.586483,1.029338],[-0.534238,1.078662],[-0.47807,1.123476],[-0.418278,1.16352],[-0.355162,1.198533],[-0.289019,1.228257],[-0.22015,1.25243],[-0.148854,1.270793],[-0.07543,1.283087],[-0.000176,1.28905],[0.075081,1.283145],[0.148515,1.270895],[0.219827,1.252561],[0.288716,1.228406],[0.354879,1.19869],[0.418018,1.163675],[0.477831,1.123623],[0.534017,1.078795],[0.586276,1.029452],[0.634307,0.975857],[0.677809,0.91827],[0.716481,0.856953],[0.750022,0.792167],[0.778133,0.724174],[0.800511,0.653236],[0.816857,0.579614],[0.888471,0.206728],[0.919014,0.123974],[0.974328,0.058517],[1.048362,0.015484],[1.135062,0],[1.135062,-0.5]]);
}
module HTD_5mm(pulley_t_ht)
{
linear_extrude(height=pulley_t_ht+2) polygon([[-1.89036,-0.75],[-1.89036,0],[-1.741168,0.02669],[-1.61387,0.100806],[-1.518984,0.21342],[-1.467026,0.3556],[-1.427162,0.960967],[-1.398568,1.089602],[-1.359437,1.213531],[-1.310296,1.332296],[-1.251672,1.445441],[-1.184092,1.552509],[-1.108081,1.653042],[-1.024167,1.746585],[-0.932877,1.832681],[-0.834736,1.910872],[-0.730271,1.980701],[-0.62001,2.041713],[-0.504478,2.09345],[-0.384202,2.135455],[-0.259708,2.167271],[-0.131524,2.188443],[-0.000176,2.198511],[0.131296,2.188504],[0.259588,2.167387],[0.384174,2.135616],[0.504527,2.093648],[0.620123,2.04194],[0.730433,1.980949],[0.834934,1.911132],[0.933097,1.832945],[1.024398,1.746846],[1.108311,1.653291],[1.184308,1.552736],[1.251865,1.445639],[1.310455,1.332457],[1.359552,1.213647],[1.39863,1.089664],[1.427162,0.960967],[1.467026,0.3556],[1.518984,0.21342],[1.61387,0.100806],[1.741168,0.02669],[1.89036,0],[1.89036,-0.75]]);
}
module HTD_8mm(pulley_t_ht)
{
linear_extrude(height=pulley_t_ht+2) polygon([[-3.301471,-1],[-3.301471,0],[-3.16611,0.012093],[-3.038062,0.047068],[-2.919646,0.10297],[-2.813182,0.177844],[-2.720989,0.269734],[-2.645387,0.376684],[-2.588694,0.496739],[-2.553229,0.627944],[-2.460801,1.470025],[-2.411413,1.691917],[-2.343887,1.905691],[-2.259126,2.110563],[-2.158035,2.30575],[-2.041518,2.490467],[-1.910478,2.66393],[-1.76582,2.825356],[-1.608446,2.973961],[-1.439261,3.10896],[-1.259169,3.22957],[-1.069074,3.335006],[-0.869878,3.424485],[-0.662487,3.497224],[-0.447804,3.552437],[-0.226732,3.589341],[-0.000176,3.607153],[0.226511,3.589461],[0.447712,3.552654],[0.66252,3.497516],[0.870027,3.424833],[1.069329,3.33539],[1.259517,3.229973],[1.439687,3.109367],[1.608931,2.974358],[1.766344,2.825731],[1.911018,2.664271],[2.042047,2.490765],[2.158526,2.305998],[2.259547,2.110755],[2.344204,1.905821],[2.411591,1.691983],[2.460801,1.470025],[2.553229,0.627944],[2.588592,0.496739],[2.645238,0.376684],[2.720834,0.269734],[2.81305,0.177844],[2.919553,0.10297],[3.038012,0.047068],[3.166095,0.012093],[3.301471,0],[3.301471,-1]]);
}
module GT2_2mm(pulley_t_ht)
{
linear_extrude(height=pulley_t_ht+2) polygon([[0.747183,-0.5],[0.747183,0],[0.647876,0.037218],[0.598311,0.130528],[0.578556,0.238423],[0.547158,0.343077],[0.504649,0.443762],[0.451556,0.53975],[0.358229,0.636924],[0.2484,0.707276],[0.127259,0.750044],[0,0.76447],[-0.127259,0.750044],[-0.2484,0.707276],[-0.358229,0.636924],[-0.451556,0.53975],[-0.504797,0.443762],[-0.547291,0.343077],[-0.578605,0.238423],[-0.598311,0.130528],[-0.648009,0.037218],[-0.747183,0],[-0.747183,-0.5]]);
}
module GT2_3mm(pulley_t_ht)
{
linear_extrude(height=pulley_t_ht+2) polygon([[-1.155171,-0.5],[-1.155171,0],[-1.065317,0.016448],[-0.989057,0.062001],[-0.93297,0.130969],[-0.90364,0.217664],[-0.863705,0.408181],[-0.800056,0.591388],[-0.713587,0.765004],[-0.60519,0.926747],[-0.469751,1.032548],[-0.320719,1.108119],[-0.162625,1.153462],[0,1.168577],[0.162625,1.153462],[0.320719,1.108119],[0.469751,1.032548],[0.60519,0.926747],[0.713587,0.765004],[0.800056,0.591388],[0.863705,0.408181],[0.90364,0.217664],[0.932921,0.130969],[0.988924,0.062001],[1.065168,0.016448],[1.155171,0],[1.155171,-0.5]]);
}
module GT2_5mm(pulley_t_ht)
{
linear_extrude(height=pulley_t_ht+2) polygon([[-1.975908,-0.75],[-1.975908,0],[-1.797959,0.03212],[-1.646634,0.121224],[-1.534534,0.256431],[-1.474258,0.426861],[-1.446911,0.570808],[-1.411774,0.712722],[-1.368964,0.852287],[-1.318597,0.989189],[-1.260788,1.123115],[-1.195654,1.25375],[-1.12331,1.380781],[-1.043869,1.503892],[-0.935264,1.612278],[-0.817959,1.706414],[-0.693181,1.786237],[-0.562151,1.851687],[-0.426095,1.9027],[-0.286235,1.939214],[-0.143795,1.961168],[0,1.9685],[0.143796,1.961168],[0.286235,1.939214],[0.426095,1.9027],[0.562151,1.851687],[0.693181,1.786237],[0.817959,1.706414],[0.935263,1.612278],[1.043869,1.503892],[1.123207,1.380781],[1.195509,1.25375],[1.26065,1.123115],[1.318507,0.989189],[1.368956,0.852287],[1.411872,0.712722],[1.447132,0.570808],[1.474611,0.426861],[1.534583,0.256431],[1.646678,0.121223],[1.798064,0.03212],[1.975908,0],[1.975908,-0.75]]);
}

1
x_end.scad
Wyświetl plik

@ -11,7 +11,6 @@ nema17_mount_hole_r = 3.5/2;
nema17_mount_holes_spacing = 31.2;
mount_width = nema17_width+3;
// print two same pieces
//x_end();

4
y_end2.scad
Wyświetl plik

@ -17,7 +17,7 @@ module y_end2()
translate([0,-block_width/2, 0])
{
for(mul = [-1,1])
translate([(belt_bearing_dia/2+1)*mul,rods_r+block_width/2+1,wall_tickness])
translate([(belt_bearing_dia/2+1)*mul,rods_r+block_width/2-1,wall_tickness])
{
//groove round
translate([mul*1,0,-wall_tickness])rotate([-90,0,0])
@ -25,7 +25,7 @@ module y_end2()
//cube([4,4,wall_tickness]);
//cube([belt_bearing_dia+10, belt_width*2, wall_tickness*2],center=true);
rotate([0,90,90]) scale([1,1.3*mul,1])
belting("straight",belt_profile, belt_length = 50, belting_width = belt_width );
belting("straight",belt_profile, belt_length = 50, belting_width = belt_width+2 );
}
//tool mount screw holes
for(mul = [1,-1])