+// -*- C -*-
+
+fdia=1.75;
slop=0.5;
+bigslop=slop*2;
+
+exteffrad = 85;
+hubeffrad = 30;
+hubbigrad = 20;
+hublwidth = 3;
+hubstemwidth = 2;
+hublthick = 10;
+hubaxlelen = 25;
+hubaxlerad = 5;
prongthick=5;
prongwidth=5;
ratchettoothsmoothr=1;
ratchettoothslope=0.75;
overlap=0.5;
+cupbigrad=20;
+
+xstraightmul = 1.75;
+
+propxshift = 0;
+
+doveclipheight = 10;
+
+teethh=3;
+teethgapx=4+fdia;
+
+prongstalkxwidth=3;
+
+stalklength=35;
+overclipcupgap=5;
+overclipdepth=15;
+overcliproundr=2.0;
+overclipthick=0.5;
+
+overclipsmaller=-2.5;
+overclipbigger=0.0;
+
+wingspoke=3;
+wingsize=6;
+wingthick=3;
armendwallthick=2.5;
armendbasethick=1.2;
+ratchetpawl=ratchetstep-ratchettooth-bigslop*2;
+
include <doveclip.scad>
+include <cliphook.scad>
+include <filamentteeth.scad>
-module ArmEnd(length=120){
- channelwidth = prongthick + slop;
- channeldepth = prongwidth + ratchettoothheight;
- totalwidth = armendwallthick*2 + channelwidth;
- totalheight = channeldepth + armendbasethick;
+channelwidth = prongthick + slop;
+channeldepth = prongwidth + ratchettoothheight;
+totalwidth = armendwallthick*2 + channelwidth;
+totalheight = channeldepth + armendbasethick;
+stalkwidth = prongwidth + prongstalkxwidth;
+module ArmEnd(length=120){ ////toplevel
translate([ratchettoothsmoothr, channelwidth/2, -armendbasethick]) {
rotate([0,0,-90])
- DoveClipPairBase(h=totalheight);
+ DoveClipPairBase(h=doveclipheight);
}
- for (dx = [0 : ratchetstep : length]) translate([dx,0,0]) {
- difference(){
- translate([0, -armendwallthick, -armendbasethick])
- cube([ratchetstep+overlap, totalwidth, totalheight]);
- translate([-1, 0, 0])
- cube([ratchetstep+overlap+2, channelwidth, channeldepth+1]);
- }
+ difference(){
+ translate([0, -armendwallthick, -armendbasethick])
+ cube([length, totalwidth, totalheight]);
+ translate([-1, 0, 0])
+ cube([length+1 - ratchettooth, channelwidth, channeldepth+1]);
+ translate([-1, 0, ratchettoothheight])
+ cube([length+2, channelwidth, channeldepth+1]);
+ }
+ for (dx = [0 : ratchetstep : length - ratchetstep]) translate([dx,0,0]) {
translate([ratchettoothsmoothr+0.5, armendwallthick/2, 0]) minkowski(){
rotate([90,0,0])
cylinder($fn=20, r=ratchettoothsmoothr, h=armendwallthick);
[ 0, 0, 1, 0 ],
[ 0, 0, 0, 1 ]])
cube([ratchettooth - ratchettoothsmoothr*2,
- channelwidth, ratchettoothheight]);
+ channelwidth, ratchettoothheight - ratchettoothsmoothr]);
+ }
+ }
+}
+
+module FilamentCupHandle(){
+ pawlusewidth = ratchetpawl-ratchettoothsmoothr*2;
+ mirror([0,1,0]) {
+ cube([stalklength, stalkwidth, prongthick]);
+ translate([stalklength, stalkwidth/2, 0])
+ cylinder(r=stalkwidth/2, h=prongthick, $fn=20);
+ translate([ratchettoothsmoothr, stalkwidth, 0]) {
+ minkowski(){
+ cylinder($fn=20,r=ratchettoothsmoothr, h=1);
+ multmatrix([ [ 1, -ratchettoothslope, 0, 0 ],
+ [ 0, 1, 0, 0 ],
+ [ 0, 0, 1, 0 ],
+ [ 0, 0, 0, 1 ]])
+ cube([pawlusewidth,
+ ratchettoothheight - ratchettoothsmoothr,
+ prongthick - 1]);
+ }
+ }
+ }
+}
+
+module FilamentCupCup(){
+ xstraight = cupbigrad * xstraightmul;
+ linear_extrude(height=prongthick) {
+ FlatArc(0,0, cupbigrad,cupbigrad+prongwidth, 89,271, $fn=80);
+ }
+ for (my=[0,1]) mirror([0,my,0]) {
+ translate([0,cupbigrad,0])
+ cube([xstraight, prongwidth, prongthick]);
+ }
+}
+
+module FilamentCup() { ////toplevel
+ FilamentCupHandle();
+
+ dx = cupbigrad + prongwidth;
+ gapy = prongwidth;
+ dy = cupbigrad + gapy + overclipcupgap;
+
+ translate([dx, dy, 0])
+ FilamentCupCup();
+ translate([0, -1, 0]);
+ cube([prongwidth, dy+1, prongthick]);
+
+ midrad = cupbigrad + prongwidth/2;
+
+ propshift = stalklength - overclipdepth - prongthick + propxshift;
+ proptaken = propshift;
+ echo(cupbigrad, dx, midrad, propshift, proptaken);
+
+ translate([propshift, -1, 0]) {
+ // something is wrong with the y calculation
+ cube([prongwidth,
+ dy - sqrt(midrad*midrad - proptaken*proptaken) - prongwidth/2,
+ prongthick]);
+ }
+ translate([0, overclipcupgap, 0])
+ rotate([0,0, 102 + fdia])
+ FilamentTeeth(fdia=fdia, h=teethh);
+}
+
+module CupSecuringClipSolid(w,d,h1,h2){
+ rotate([0,-90,0]) translate([0,-h1/2,-w/2]) linear_extrude(height=w) {
+ polygon(points=[[0,0], [d,0], [d,h2], [0,h1]]);
+ }
+}
+
+module CupSecuringClipSolidSmooth(xrad=0, xdepth=0){
+ hbase = totalheight + prongstalkxwidth - overcliproundr*2;
+ minkowski(){
+ CupSecuringClipSolid(w=totalwidth,
+ d=overclipdepth + xdepth,
+ h1=hbase - overclipsmaller,
+ h2=hbase + overclipbigger);
+ cylinder($fn=20, h=0.01, r=overcliproundr+xrad);
+ }
+}
+
+module CupSecuringClip(){ ////toplevel
+ wingswidth = wingspoke*2 + overclipthick*2 + overcliproundr*2 + totalwidth;
+ difference(){
+ union(){
+ CupSecuringClipSolidSmooth(xrad=overclipthick, xdepth=0);
+ translate([-wingswidth/2, -wingsize/2, 0])
+ cube([wingswidth, wingsize, wingthick]);
}
+ translate([0,0,-0.1])
+ CupSecuringClipSolidSmooth(xrad=0, xdepth=0.2);
}
}
-ArmEnd();
+module ArmDoveClipPin(){ ////toplevel
+ DoveClipPin(h=doveclipheight);
+}
+
+module Hub(){ ////toplevel
+ difference(){
+ cylinder($fn=60, h=hublthick, r=hubbigrad);
+ translate([0,0,-1])
+ cylinder($fn=30, h=hublthick+2, r=(hubbigrad-hublwidth));
+ }
+ axlerad = hubaxlerad + slop;
+ difference(){
+ cylinder(h=hubaxlelen, r=axlerad+hublwidth);
+ translate([0,0,-1]) cylinder($fn=60, h=hubaxlelen+2, r=axlerad);
+ }
+ hole = hubeffrad - hubbigrad - DoveClip_depth() - hublwidth*2;
+ holewidth = DoveClipPairSane_width() - hubstemwidth*2;
+ for (ang=[0,120,240])
+ rotate([0,0,ang]) {
+ difference() {
+ translate([hubeffrad,0,0])
+ DoveClipPairSane(h=doveclipheight,
+ baseextend = (hubeffrad - DoveClip_depth()
+ - hubbigrad + hublwidth));
+ if (hole>hublwidth && holewidth > 2) {
+ translate([hubbigrad + hublwidth, -holewidth/2, -1])
+ cube([hole, holewidth, hublthick+2]);
+ }
+ }
+ }
+ xmin = axlerad+hublwidth/2;
+ xmax = hubbigrad-hublwidth/2;
+ for (ang = [0 : 60 : 359])
+ rotate([0,0,ang]) rotate([90,0,0]) {
+ translate([0,0,-hublwidth/2])
+ linear_extrude(height=hublwidth)
+ polygon([[xmin,0.05], [xmax,0.05],
+ [xmax,hublthick-0.2], [xmin, hubaxlelen-0.2]]);
+ }
+}
+
+module ArmExtender(){ ////toplevel
+ DoveClipExtender(length=exteffrad-hubeffrad,
+ pillarw=2,
+ ha=doveclipheight,
+ hb=doveclipheight);
+}
+
+//ArmEnd();
+//FilamentCup();
+//CupSecuringClip();
+//Hub();
~ianmdlvl / reprap-play.git / blobdiff