Dateien nach "Brompton_Urban_Bag" hochladen
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Brompton_Urban_Bag/Brompton_Urban_Bag_Magnet.scad
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Brompton_Urban_Bag/Brompton_Urban_Bag_Magnet.scad
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use <threads-library-by-cuiso-v1.scad>
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// Screw
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translate([0,50,0]) difference(){
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union() {
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cylinder(d=40,h=3);
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translate ([0,0,9]) rotate([180,0,0]) thread_for_screw(diameter=10, length=6);
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}
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}
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// Socket
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difference(){
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union() {
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cylinder(d=40, h =4);
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translate([0,0,1]) difference(){
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translate([0,0,3]) cylinder(d=19, h=4, d2=12);
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union(){
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translate([0,0,3]) cylinder(d=9, h=7);
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translate([-4.5,0,3]) rotate([0,0,0]) cube([9,9,9]);
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};
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}
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}
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translate([0,0,1]) union() {
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rotate([180,0,0]) translate([0,0,-9]) union() {
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cylinder(d=19, h=1);
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translate([0,0,1]) cylinder(d=10, h=1);
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translate([0,0,2]) cylinder(d=8.5, h=5.5);
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translate([0,0,7]) cylinder(d=11, h=1);
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}
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difference(){
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translate([-5.5,-6,3]) cube([11,25,2]);
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translate([-6.6,-7,5]) rotate([0,45,0]) cube([1.5,27,1.5]);
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translate([4.5,-7,5]) rotate([0,45,0]) cube([1.5,27,1.5]);
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}
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}
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translate ([0,0,0]) thread_for_nut(diameter=10, length=3);
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}
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BIN
Brompton_Urban_Bag/Brompton_Urban_Bag_Magnet.stl
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BIN
Brompton_Urban_Bag/Brompton_Urban_Bag_Magnet.stl
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339
Brompton_Urban_Bag/threads-library-by-cuiso-v1.scad
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339
Brompton_Urban_Bag/threads-library-by-cuiso-v1.scad
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/*
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"OpenScad library. Threads for screws and nuts V1"
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by ANDRES ROMAN (AKA Cuiso) September 2018
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-> V1.2 30/03/2021 Change Log:
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- Since OpenScad version 2021.01 version 1.1 of this library stopped with error.
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The necessary modifications have been made in this version 1.2
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so that it also works with OpenScad 2021.01.
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- Due to these necessary modifications, unfortunately now the preview
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time has increased slightly.
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- Remember that if necessary you can increase the speed for previewing and
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rendering using the functions with full parameters and specifying a
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smaller number of the "divs" parameter.
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If you prefer, you can also improve the speed at a
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general level by changing the variable "stddivs"
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located on line 167, increasing this variable increases the
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preview and rendering time (and increases the resolution),
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decreasing the value of this variable decreases the time
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preview and the resolution is lowered.
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The default value of 50 is generally adequate and in
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most cases you don't need to worry about this unless
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your computer is really slow, or you want to get really large diameter threads.
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This version continues to be compatible with OpenScad versions prior to 2021.01.
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- Some warnings that did not affect operation have been removed.
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- Some "echo" that did not affect operation have been removed.
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- This version is completely compatible with your projects made
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with previous versions, the name of the library "threads-library-by-cuiso-v1.scad"
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has been kept so you do not have to change anything in your source code, you only
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have to replace the old file "threads-library-by-cuiso-v1.scad" by the new
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"threads-library-by-cuiso-v1.scad" and you are ready to work with OpenScad 2021.01.
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- Happy designing !!!
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-> V1.1 23/08/2019 Change Log:
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-Fixed bug. Using fullparms functions with "divs" no divider of 360 (200 for example) the thread could be incomplete. Now you can use any number of "divs" without problem.
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-A small improvement. Now the diameter reductions at the beginning of the screw for easy entry are created with the same level of detail as the rest of the screw.
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* Copyright 2018 ANDRES ROMAN (AKA Cuiso)
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* Licensed under the Creative Commons - Attribution license.
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* This software is free software, you can Share and Adapt under the terms of Attribution
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(give appropriate credit).
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*
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* you can visit https://creativecommons.org/licenses/by/3.0/ for more details
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* This software is distributed WITHOUT ANY WARRANTY.
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*/
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//For use this library you can put the file threads-library-by-cuiso-v1.scad in the same directory of your proyect and put the line use <threads-library-by-cuiso-v1.scad> in your own .scad file
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//You can see examples of use in file examples.scad
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/*
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This is a library to include threads for screws and nuts in your own designs.
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This library is focused to provide simple functions with preset parameters by default,
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and not to be too demanding in CPU consumption neither in previsualizacion nor in rendering
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This library has been tested printing on PLA with 0.1 layer. Except for smaller diameter
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threads layers greater than 0.1 should work well.
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Diamaters tested between 3mm and 10mm, but you can use any diameter of your choice.
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Shape of the threads are similar (but not equal) to ISO METRIC threads.
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Some tests have been done using screws and nuts printed with this library in
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combination with screws and nuts of metal with acceptable results. However, they have
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not been exhaustive tests.
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*/
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/*
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>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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AVAILABLE FUNCTIONS:
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BASIC FUNCTIONS (USING PREDEFINED PARAMETERS):
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thread_for_screw(diameter, length);
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Generates a screw thread of the diameter indicated by the "diameter" parameter and of the length indicated by "length". This function uses standard pitch values depending on the diameter specified.
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diameter: Free value, in milimeters.
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length: Free value, in milimeters.
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Example:
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thread_for_screw(diameter=10, length=30);
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thread_for_nut(diameter, length, usrclearance=0);
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Generates a nut thread of the diameter indicated by the "diameter" parameter and of the length indicated by "length". This function uses standard pitch values depending on the diameter specified.
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The generated thread can be subtracted from any element of your design using the operator "difference()", thus obtaining a thread where a screw will fit.
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This function uses standard clearance for adjustment between screw and nut depending on the diameter specified.
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diameter: Free value, in milimeters.
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length: Free value, in milimeters.
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usrclearance: (optional) If the screw fits too tight on the nut you can specify a positive correction value (try 0.1 for example).
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If the screw fits too loose in the nut you can specify a negative correction value (try -0.1 for example).
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Example:
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thread_for_nut(diameter=10, length=20);
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MORE AVAILABLE FUNCTIONS (WITH ADDITIONAL PARAMETERS):
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thread_for_screw_fullparm(diameter, length, pitch, divs=50);
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Generates a screw thread of the diameter indicated by the "diameter" parameter and of the length indicated by "length", with pitch indicated by "pitch", and a resolution indicated by "divs".
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This function allows you to specify a non-standard "pitch" value.
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diameter: Free value, in milimeters.
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length: Free value, in milimeters.
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pitch: Pitch value.
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divs: (optional) you can obtain more or less resolution with parm. Higher values for more resolution (and more rendering time). Default value is 50.
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Example:
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thread_for_screw_fullparm(diameter=10, length=30, pitch=2, divs=60);
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thread_for_nut_fullparm(diameter, length, usrclearance=0, pitch, divs=50, entry=1);
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Generates a nut thread with additional parameters:
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diameter: Free value, in milimeters.
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length: Free value, in milimeters.
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usrclearance: (optional) If the screw fits too tight on the nut you can specify a positive correction value (try 0.1 for example).
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If the screw fits too loose in the nut you can specify a negative correction value (try -0.1 for example).
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pitch: Pitch value.
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divs: (optional) you can obtain more or less resolution with parm. Higher values for more resolution (and more rendering time). Default value is 50.
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entry: By default, the nut threads include a wider entrance area at the beginning and end to facilitate the introduction of the screw and minimize "elephant foot" problems.
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Specify 1 in entry to use these zones and 0 to not use them.
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Example:
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thread_for_nut_fullparm(diameter=10,length=20,usrclearance=0.1,pitch=1.5,divs=60, entry=1);
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>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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*/
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/*
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>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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SOME NOTES:
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- At first preview(F5) of the design may appear in console a lot of messages:
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"PolySet has nonplanar faces. Attempting alternate construction"
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simply ignore those messages, they are not a problem.
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In versión 1.2 these messages no longer appear.
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- I have no lag problems in preview(F5) mode during the test of this library. If you are suffering lag problems in preview you can try to un-comment the "render()" al lines 286 and 293.
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You can also try decreasing the value of the stddivs variable on line 169 (50 is the default value).
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- This library uses by default PITCH values:
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DIAMETER PITCH_VALUE
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3mm 0.5mm
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4mm 0.7mm
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5mm 0.8mm
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6mm 1.0mm
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8mm 1.25mm
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10mm 1.5mm
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...
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24mm 3.0mm
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(complete list defined at get_std_pitch(diam))
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>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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*/
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//EXAMPLE FOR CUSTOMIZER:
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//1 to draw rod, 0 to not draw rod
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drawrod=1;
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//1 to draw nut, 0 to not draw nut
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drawnut=1;
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diameter=8;
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lengthrod=15;
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lengthnut=7;
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//Example of USE, a rod SCREW:
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if(drawrod==1)thread_for_screw(diameter=diameter, length=lengthrod);
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//Example of USE, a FEMALE THREAD to be removed (with difference ()) from another figure:
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if(drawnut==1)
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translate([diameter,1.5*diameter,0]){
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thread_for_nut(diameter=diameter, length=lengthnut);
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}
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//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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stddivs=50;
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module thread_for_screw(diameter, length)
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{
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stdpitch=get_std_pitch(diameter);
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thread_for_screw_cuiso_tec(diameter,length,stdpitch,divdelta=stddivs);
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//echo(diameter);echo(stdpitch);
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}
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module thread_for_nut(diameter, length, usrclearance=0)
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{
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stdpitch=get_std_pitch(diameter);
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stdclearance=get_std_clearance(diameter);
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thread_for_nut_cuiso_tec
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(diameter+stdclearance+usrclearance,length,stdpitch,divdelta=stddivs,entry=1);
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//echo(diameter);echo(stdpitch);echo(stdclearance+usrclearance);
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}
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//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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module thread_for_screw_fullparm(diameter, length, pitch, divs=50)
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{
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if(divs<20) thread_for_screw_cuiso_tec(diameter,length,pitch,20);
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else if(divs>360) thread_for_screw_cuiso_tec(diameter,length,pitch,360);
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else thread_for_screw_cuiso_tec(diameter,length,pitch,divs);
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}
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module thread_for_nut_fullparm(diameter, length, usrclearance=0, pitch, divs=50, entry=1)
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{
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stdclearance=get_std_clearance(diameter);
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if(divs<20)thread_for_nut_cuiso_tec
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(diameter+stdclearance+usrclearance,length,pitch,20,entry=entry);
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else
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if(divs>360)thread_for_nut_cuiso_tec
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(diameter+stdclearance+usrclearance,length,pitch,360,entry=entry);
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else
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thread_for_nut_cuiso_tec
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(diameter+stdclearance+usrclearance,length,pitch,divs,entry=entry);
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}
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//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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function get_std_pitch(diam) =
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lookup(diam,[[3,0.5],[4,0.7],[5,0.8],[6,1.0],[8,1.25],[10,1.5],
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[12,1.75],[14,2.0],[16,2.0],[18,2.5],[20,2.5],[22,2.5],[24,3.0]
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]);
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function get_std_clearance(diam) =
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lookup(diam,[[3,0.4],[4,0.4],[5,0.5],[6,0.6],[8,0.6],[10,0.6],
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[12,0.7],[14,0.7],[16,0.7],[18,0.7],[20,0.8],[22,0.8],[24,0.8]
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]);
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//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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module thread_for_screw_cuiso_tec(diameter,lenght,pitch,divdelta){
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delta=360/divdelta;
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intersection(){
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cubointter(long=lenght,pitch=pitch,diameter=diameter,divdeltacube=divdelta);
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rosca(long=lenght,p=pitch,delta=delta,diameter=diameter);
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}
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//#cylinder(d=diameter,h=lenght,$fn=100);
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}
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module thread_for_nut_cuiso_tec(diameter,lenght,pitch,divdelta,entry){
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delta=360/divdelta;
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translate([0,0,-0.001])
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intersection(){
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rosca(long=lenght+0.002,p=pitch,delta=delta,diameter=diameter,nut=1);
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cubointter_nut(lenght+0.002,pitch,diameter);
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}
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if(entry==1){translate([0,0,-0.001])cubointter_nut_entry(lenght+0.002,pitch,diameter,divdeltacube=divdelta);}
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//#cylinder(d=diameter,h=lenght,$fn=100);
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}
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module cubointter(long,pitch,diameter,divdeltacube)
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{
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longcube=long-pitch;
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translate([0,0,longcube/2+pitch/2])cube([diameter,diameter,longcube],center=true);
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translate([0,0,longcube+pitch/2])
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cylinder(d1=diameter,d2=diameter-2*pitch*0.866,h=pitch/2, $fn=divdeltacube);
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cylinder(d2=diameter,d1=diameter-2*pitch*0.866,h=pitch/2, $fn=divdeltacube);
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}
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module cubointter_nut(long,pitch,diameter)
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{
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longcube=long;
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translate([0,0,longcube/2])cube([diameter,diameter,longcube],center=true);
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}
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module cubointter_nut_entry(long,pitch,diameter,divdeltacube)
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{
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longcube=long-0.6;
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translate([0,0,longcube])
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cylinder(d2=diameter+0.4,d1=diameter,h=0.6, $fn=divdeltacube);
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cylinder(d1=diameter+0.4,d2=diameter,h=0.6, $fn=divdeltacube);
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}
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module rosca(long,p,delta,diameter,nut=0)
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{
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vueltas=round(long/p+0.5)+1;
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translate([0,0,-p/4])
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for(v = [0 : 1 : vueltas-1])
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translate([0,0,v*p])
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vuelta(p=p,delta=delta,diameter=diameter,nut=nut);
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}
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module vuelta(p,delta,diameter,nut)
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{
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medio(p=p,delta=delta,diameter=diameter,nut=nut);
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translate([0,0.001,0])
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rotate([0,180,180])
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medio(p=p,delta=delta,diameter=diameter,nut=nut);
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}
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module medio(p,delta,diameter,nut)
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{
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if(nut==1)
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//render()
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hull(){
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for(k = [0 : delta : 180])
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translate([0,0,k*p/360])rotate([0,0,k])pieza_nut(diameter=diameter, p=p);
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translate([0,0,180*p/360])rotate([0,0,180])pieza_nut(diameter=diameter, p=p);
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}
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else
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//render()
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hull(){
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for(k = [0 : delta : 180])
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translate([0,0,k*p/360])rotate([0,0,k])pieza(diameter=diameter, p=p);
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translate([0,0,180*p/360])rotate([0,0,180])pieza(diameter=diameter, p=p);
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}
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}
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module pieza(diameter, p)
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{
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r=diameter/2;
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h=p*0.866;
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pp=p/2;
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pm=-p/2;
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hh=r-h;
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g=0.001;
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rotate([90,0,0])
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linear_extrude(height = g, center = true, convexity = 10){
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polygon([
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[0,pp],[hh,pp],[r-h/8,p/16],[r-h/8,-p/16],[hh,pm],[0,pm]
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],
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[
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[0,1,2,3,4,5]
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]);
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}
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}
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module pieza_nut(diameter, p)
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{
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r=diameter/2;
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h=p*0.866;
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pp=p/2;
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pm=-p/2;
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hh=r-h;
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g=0.001;
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rotate([90,0,0])
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linear_extrude(height = g, center = true, convexity = 10){
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polygon([
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[0,pp],[hh,pp],[r,0],[hh,pm],[0,pm]
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],
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[
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[0,1,2,3,4]
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]);
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}
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}
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