+// -*- C -*-
+
+fdia=2.85;
+lightduty=false;
slop=0.5;
+bigslop=slop*2;
+
+function selsz(sm,lt,lg) = fdia < 2 ? sm : lightduty ? lt : lg;
+function usedove() = selsz(true,true,false);
+
+num_arms = selsz(3,3,4);
+
+channelslop=selsz(slop,0.75,slop);
-prongthick=5;
-prongwidth=5;
-ratchetstep=10;
+exteffrad = 70;
+hubeffrad = selsz(30, 82, 40);
+hubbigrad = selsz(20, 38, 38);
+hublwidth = selsz(3, 2.5, 4);
+hubstemwidth = 2;
+hublthick = 10;
+hubaxlerad = selsz(5, 28/2, 28/2);
+totalheightfromtower = 240;
+axletowerfudgebend = 0;
+axleaxlefudgebend = 3;
+axlepadlen = 1.0;
+
+armend_length = 120;
+
+prongthick=selsz(5,4,5);
+prongwidth=selsz(5,4,5);
+prongribwidth=3;
+prongribheight=selsz(0,0,4);
+ratchetstep=15;
ratchettooth=3;
ratchettoothheight=5;
+ratchettoothsmoothr=1;
+ratchettoothslope=0.75;
overlap=0.5;
+cupwidth=selsz(40,25,50);
+cupheight=selsz(55,25,55);
+
+cupstrong_dx=selsz(0,0,-10);
+
+propxshift = -6;
+
+doveclipheight = 10;
+
+teethh=3;
+teethgapx=4+fdia;
+
+prongstalkxwidth=3;
+
+stalklength=selsz(35,25,55);
+overclipcupgap=5;
+overclipdepth=15;
+overcliproundr=2.0;
+overclipthick=1.0;
+overclipcupnextgap=selsz(20,15,20);
+
+hubaxlelen = selsz(25, 62.5, 77.5);
+echo(hubaxlelen);
+
+overclipsmaller=-2.5;
+overclipbigger=0.0;
-armendwallthick=2.5;
-armendbasethick=1.2;
+wingspoke=2.5;
+wingsize=6;
+wingthick=3;
+
+armendwallthick=selsz(2.5, 1.8, 2.5);
+armendbasethick=selsz(1.2, 1.2, 1.2);
+
+axlehorizoffset = 12.5;
+axlevertheight = 100;
+towercliph = 16;
+towerclipcount = 3;
+towerpillarw = 5;
+
+axlepinrad = 2;
+axlepintabrad = 5;
+
+washerthick = 1.2;
+washerthinthick = 0.8;
+washerverythinthick = 0.4;
+washerrad = hubaxlerad + 7.5;
+frictionwasherarmwidth = 3;
+frictionwasherextrapush = 1.0;
+
+ratchetpawl=ratchetstep-ratchettooth-bigslop*2;
+
+nondove_armhole_x = 32;
+nondove_armhole_hole = 4 + 0.8;
+nondove_armhole_support = 7;
+nondove_armhole_wall = 3.2;
+nondove_armhole_slop = 0.5;
+nondove_armhole_slop_x = 0.5;
+
+nondove_armbase = nondove_armhole_x + nondove_armhole_hole/2 +
+ nondove_armhole_support;
+echo(nondove_armbase);
+
+include <doveclip.scad>
+include <cliphook.scad>
+include <filamentteeth.scad>
+include <axlepin.scad>
+
+channelwidth = prongthick + channelslop;
+channeldepth = prongwidth + ratchettoothheight;
+totalwidth = armendwallthick*2 + channelwidth;
+totalheight = channeldepth + armendbasethick;
+stalkwidth = prongwidth + prongstalkxwidth;
+
+module ArmEnd(length=armend_length){ ////toplevel
+ if (usedove()) {
+ translate([ratchettoothsmoothr, channelwidth/2, -armendbasethick]) {
+ rotate([0,0,-90])
+ DoveClipPairBase(h=doveclipheight);
+ }
+ } else {
+ difference(){
+ translate([1, -armendwallthick, -armendbasethick])
+ mirror([1,0,0])
+ cube([nondove_armbase+1, totalwidth, totalheight]);
+ translate([-nondove_armbase + nondove_armhole_x,
+ -armendwallthick + totalwidth/2,
+ -armendbasethick -1])
+ cylinder(r= nondove_armhole_hole/2, h=totalheight+2, $fn=10);
+ }
+ }
-module ArmEnd(length=100){
- channelwidth = prongthick + slop;
- channeldepth = prongwidth + ratchettoothheight;
- totalwidth = armendwallthick*2 + channelwidth;
- totalheight = channeldepth + armendbasethick;
difference(){
translate([0, -armendwallthick, -armendbasethick])
- cube([ratchetstep+overlap, totalwidth, totalheight]);
+ cube([length, totalwidth, totalheight]);
translate([-1, 0, 0])
- cube([ratchetstep+overlap+2, channelwidth, channeldepth+1]);
+ cube([length+1 - ratchettooth, channelwidth, channeldepth+1]);
+ translate([-1, 0, ratchettoothheight])
+ cube([length+2, channelwidth, channeldepth+1]);
+ }
+ for (dx = [0 : ratchetstep : length - ratchetstep]) translate([dx,0,0]) {
+ translate([ratchettoothsmoothr+0.5, armendwallthick/2, 0]) minkowski(){
+ rotate([90,0,0])
+ cylinder($fn=20, r=ratchettoothsmoothr, h=armendwallthick);
+ multmatrix([ [ 1, 0, ratchettoothslope, 0 ],
+ [ 0, 1, 0, 0 ],
+ [ 0, 0, 1, 0 ],
+ [ 0, 0, 0, 1 ]])
+ cube([ratchettooth - ratchettoothsmoothr*2,
+ 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(){
+ for (my=[0,1]) mirror([0,my,0]) {
+ translate([0, cupwidth/2, 0])
+ cube([cupheight + prongwidth, prongwidth, prongthick]);
+ }
+}
+
+module FilamentCup() { ////toplevel
+ FilamentCupHandle();
+
+ gapy = prongwidth;
+ dy = cupwidth/2 + gapy + overclipcupgap;
+ baselen = dy+cupwidth/2;
+
+ translate([0, dy, 0])
+ FilamentCupCup();
+ cube([prongwidth, baselen+1, prongthick]);
+
+ translate([cupstrong_dx, prongwidth, 0]) {
+ cube([prongwidth, baselen-prongwidth, prongthick]);
+ for (y = [0, .33, .67, 1])
+ translate([0, (baselen - prongwidth) * y, 0])
+ cube([-cupstrong_dx + 1, prongwidth, prongthick]);
+ }
+ if (cupstrong_dx != 0) {
+ rotate([0,0,45])
+ translate([-prongwidth*.55, -prongwidth*2.1, 0])
+ cube([prongwidth*(2.65), prongwidth*4.2, prongthick]);
+ }
+
+ translate([0, -0.2, 0])
+ cube([prongribwidth, baselen, prongthick + prongribheight]);
+
+ if (prongribheight > 0) {
+ translate([-prongwidth, baselen, 0])
+ cube([cupheight/2, prongwidth + prongribheight, prongribwidth]);
+ }
+
+ midrad = cupwidth/2 + prongwidth/2;
+
+ propshift = stalklength - overclipdepth - prongthick + propxshift;
+ proptaken = propshift;
+ echo(midrad, propshift, proptaken);
+
+ translate([propshift, -1, 0]) {
+ // something is wrong with the y calculation
+ cube([prongwidth,
+ gapy+2,
+ prongthick]);
+ }
+ for (y = [overclipcupgap, overclipcupgap+overclipcupnextgap]) {
+ translate([cupstrong_dx, y + prongwidth, 0])
+ rotate([0,0, 102 + fdia])
+ FilamentTeeth(fdia=fdia, h=teethh);
+ }
+ for (x = [-0.3, -1.3]) {
+ translate([cupheight + overclipcupnextgap*x, baselen + prongwidth, 0])
+ rotate([0,0, 12 + 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($fn=20, h=0.01, r=overcliproundr+xrad);
+ }
+}
+
+module CupSecuringClip(){ ////toplevel
+ wingswidth = wingspoke*2 + overclipthick*2 + overcliproundr*2 + totalwidth;
+ difference(){
+ union(){
+ CupSecuringClipSolidSmooth(xrad=overclipthick, xdepth=0);
+ translate([-wingswidth/2, -wingsize/2, 0])
+ cube([wingswidth, wingsize, wingthick]);
+ translate([-wingsize/2, -wingswidth/2, 0])
+ cube([wingsize, wingswidth, wingthick]);
+ }
+ translate([0,0,-0.1])
+ CupSecuringClipSolidSmooth(xrad=0, xdepth=0.2);
+ }
+}
+
+module ArmDoveClipPin(){ ////toplevel
+ DoveClipPin(h=doveclipheight);
+}
+
+module TowerDoveClipPin(){ ////toplevel
+ DoveClipPin(h=towercliph/2);
+}
+
+module Hub(){ ////toplevel
+ axlerad = hubaxlerad + slop;
+ xmin = axlerad+hublwidth/2;
+ xmax = hubbigrad-hublwidth/2;
+ hole = hubeffrad - hubbigrad - DoveClip_depth() - hublwidth*2;
+ holewidth = DoveClipPairSane_width() - hubstemwidth*2;
+ nondove_allwidth = nondove_armhole_wall*2 + totalwidth;
+ difference(){
+ union(){
+ difference(){
+ cylinder($fn=60, h=hublthick, r=hubbigrad);
+ translate([0,0,-1])
+ cylinder($fn=30, h=hublthick+2, r=(hubbigrad-hublwidth));
+ }
+ cylinder(h=hubaxlelen, r=axlerad+hublwidth);
+ for (ang=[0 : 360/num_arms : 359])
+ rotate([0,0,ang]) {
+ if (usedove()){
+ 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]);
+ }
+ }
+ } else {
+ difference(){
+ translate([0,
+ -nondove_allwidth/2,
+ 0])
+ cube([hubeffrad + nondove_armhole_x
+ + nondove_armhole_hole/2 + nondove_armhole_support,
+ nondove_allwidth,
+ nondove_armhole_wall + totalheight]);
+ translate([hubeffrad - nondove_armhole_slop_x,
+ -nondove_allwidth/2
+ + nondove_armhole_wall - nondove_armhole_slop,
+ nondove_armhole_wall])
+ cube([nondove_armhole_x + 50,
+ totalwidth + nondove_armhole_slop*2,
+ totalheight + 1]);
+ translate([hubeffrad + nondove_armhole_x, 0, -20])
+ cylinder(r= nondove_armhole_hole/2, h=50, $fn=10);
+ }
+ }
+ }
+ for (ang = [0 : 180/num_arms : 359])
+ rotate([0,0,ang]) rotate([90,0,0]) {
+ translate([0,0,-hublwidth/2])
+ linear_extrude(height=hublwidth)
+ polygon([[xmin,0.05], [xmax,0.05],
+ [xmax,hublthick-0.2], [xmin, hubaxlelen-0.2]]);
+ }
+ }
+ translate([0,0,-1]) cylinder($fn=60, h=hubaxlelen+2, r=axlerad);
+ }
+}
+
+module ArmExtender(){ ////toplevel
+ DoveClipExtender(length=exteffrad-hubeffrad,
+ ha=doveclipheight,
+ hb=doveclipheight);
+}
+
+module FsAxlePin(){ ////toplevel
+ AxlePin(hubaxlerad, washerrad*2, axlepinrad, axlepintabrad, slop);
+}
+
+module Axle(){ ////toplevel
+ pillarswidth = DoveClipPairSane_width(towerclipcount);
+
+ rotate([0,0, -( axleaxlefudgebend + atan(slop/hubaxlelen) ) ])
+ translate([-axlehorizoffset, -axlevertheight, 0]) {
+ rotate([0,0,-axletowerfudgebend])
+ rotate([0,0,-90])
+ DoveClipPairSane(h=towercliph, count=towerclipcount, baseextend=3);
+ translate([0, DoveClip_depth(), 0])
+ rotate([0,0,90])
+ ExtenderPillars(axlevertheight - DoveClip_depth(),
+ pillarswidth, towercliph,
+ pillarw=towerpillarw);
+ }
+
+ axleclearlen = hubaxlelen + slop*4 + washerthick*2 + axlepadlen;
+ axlerad = hubaxlerad-slop;
+ bump = axlerad * 0.2;
+ shift = axlerad-bump;
+ joinbelowallow = 3;
+
+ intersection(){
+ translate([0, 0, shift]) {
+ difference() {
+ union(){
+ translate([-1, 0, 0])
+ rotate([0,90,0])
+ cylinder($fn=60,
+ r = axlerad,
+ h = 1 + axleclearlen + axlepinrad*2 + 2);
+ mirror([1,0,0]) rotate([0,90,0])
+ cylinder(r = axlerad*1.75, h = 3);
+ intersection(){
+ mirror([1,0,0])
+ translate([axlehorizoffset - pillarswidth/2, 0, 0])
+ rotate([0,90,0])
+ cylinder($fn=60,
+ r = towercliph - shift,
+ h = pillarswidth);
+ translate([-50, -joinbelowallow, -50])
+ cube([100, joinbelowallow+50, 100]);
+ }
+ }
+ rotate([90,0,0])
+ translate([axleclearlen + axlepinrad/2, 0, -25])
+ cylinder(r = axlepinrad + slop, h=50);
+ }
+ }
+ translate([-50,-50,0]) cube([100,100,100]);
+ }
+}
+
+module washer(thick){
+ Washer(hubaxlerad, washerrad, thick, slop);
+}
+
+module AxleWasher(){ ////toplevel
+ washer(thick=washerthick);
+}
+
+module AxleThinWasher(){ ////toplevel
+ washer(thick=washerthinthick);
+}
+
+module AxleVeryThinWasher(){ ////toplevel
+ washer(thick=washerverythinthick);
+}
+
+module AxleFrictionWasher(){ ////toplevel
+ difference(){
+ cylinder(h=washerthick, r=washerrad);
+ translate([0,0,-1]) cylinder(h=washerthick+2, r=hubaxlerad+slop);
+ }
+ frarmr = hubbigrad;
+ frarmw = frictionwasherarmwidth;
+ frarmpawlr = hublwidth;
+ frarmpawlpush = slop*4 + frictionwasherextrapush;
+ for (ang=[0,180]) rotate([0,0,ang]) {
+ translate([washerrad-1, -frarmw/2, 0])
+ cube([frarmr - washerrad + 1, frarmw, washerthick]);
+ intersection(){
+ translate([frarmr - frarmpawlr, -50, 0])
+ cube([frarmpawlr, 100, 50]);
+ rotate([0,90,0])
+ cylinder(h = 50, r = frarmpawlpush, $fn=36);
+ }
+ }
+}
+
+module TowerExtender(){ ////toplevel
+ l = totalheightfromtower - axlevertheight;
+ echo("TowerExtender",l);
+ DoveClipExtender(length = l,
+ ha = towercliph, hb = towercliph,
+ counta = towerclipcount, countb = towerclipcount,
+ pillarw = towerpillarw);
+}
+
+module FilamentCupPair(){ ////toplevel
+ FilamentCup();
+ translate([cupheight + prongthick*3,
+ cupwidth/2*1.7,
+ 0])
+ rotate([0,0,180]) FilamentCup();
+}
+
+//----- storarm -----
+
+storarm_hooklen = 8;
+storarm_hookheight = 5;
+storarm_thick = 10;
+storarm_axleslop = 4;
+
+// calculated
+
+storarm_axlerad = hubaxlerad - storarm_axleslop;
+storarm_mainlen = hubaxlelen;
+storarm_totlen = storarm_mainlen + storarm_hooklen;
+
+module StorageArmDiagPartSide(xmin, xmax){
+ xsz = xmax-xmin;
+ yuse = storarm_thick/2;
+
+ intersection(){
+ translate([xmin-1, -storarm_axlerad, storarm_thick/2])
+ rotate([0,90,0])
+ cylinder(r=storarm_axlerad, h=xsz+2, $fn=60);
+ translate([xmin, -yuse, 0])
+ cube([xsz, yuse, storarm_thick]);
+ }
+}
+
+module StorageArmDiagPart(xmin, xmax, shear, adjbot){
+ hull(){
+ StorageArmDiagPartSide(xmin,xmax);
+
+ multmatrix([[1,0,0,0],
+ [shear,1,0,0],
+ [0,0,1,0],
+ [0,0,0,1]])
+ translate([0, -storarm_axlerad*2 + adjbot, 0])
+ mirror([0,1,0])
+ StorageArmDiagPartSide(xmin,xmax);
}
}
-ArmEnd();
+module StorageArm(){ ////toplevel
+ shear = storarm_hookheight / (storarm_mainlen/2);
+
+ StorageArmDiagPart(-1, storarm_mainlen/2+1, shear, 0);
+ StorageArmDiagPart(storarm_mainlen/2-1, storarm_mainlen+1, shear/2,
+ storarm_hookheight/2);
+
+ translate([0, storarm_hookheight, 0])
+ StorageArmDiagPart(storarm_mainlen, storarm_totlen,
+ shear/2, -storarm_hookheight/2);
+}
+
+
+module Demo(){
+ translate([-hubeffrad-30,50,0]) Hub();
+ ArmEnd();
+ translate([0,50,0]) FilamentCup();
+}
+
+//ArmEnd();
+//FilamentCup();
+//FilamentCupPair();
+//CupSecuringClip();
+//Hub();
+//ArmExtender();
+//Axle();
+//AxleWasher();
+//AxlePin();
+//AxleFrictionWasher();
+StorageArm();
+//Demo();
~ianmdlvl / reprap-play.git / blobdiff