chiark / gitweb /
filamentspool: Working on Cup
[reprap-play.git] / filamentspool.scad
index e717285de7fb2c7aaf131f0a3f1994da5ad45678..4e69f42dbf6effc557838d7be9b7114c3f86962d 100644 (file)
@@ -1,30 +1,37 @@
 // -*- C -*-
 
-fdia=1.75;
+fdia=2.85;
 
 slop=0.5;
 bigslop=slop*2;
 
-exteffrad = 85;
-hubeffrad = 30;
-hubbigrad = 20;
-hublwidth = 3;
+function selsz(sm,lg) = fdia < 2 ? sm : lg;
+function usedove() = selsz(true,false);
+
+num_arms = selsz(3,4);
+
+exteffrad = 70;
+hubeffrad = selsz(30, 50);
+hubbigrad = selsz(20, 45);
+hublwidth = selsz(3, 5);
 hubstemwidth = 2;
 hublthick = 10;
-hubaxlelen = 25;
-hubaxlerad = 5;
-
-prongthick=5;
-prongwidth=5;
+hubaxlerad = selsz(5, 17/2);
+totalheightfromtower = 240;
+axletowerfudgebend = 0;
+axleaxlefudgebend = 3;
+axlepadlen = 1.0;
+
+prongthick=selsz(5,7);
+prongwidth=selsz(5,7);
 ratchetstep=15;
 ratchettooth=3;
 ratchettoothheight=5;
 ratchettoothsmoothr=1;
 ratchettoothslope=0.75;
 overlap=0.5;
-cupbigrad=20;
-
-xstraightmul = 1.75;
+cupwidth=selsz(40,60);
+cupheight=selsz(55,75);
 
 propxshift = 0;
 
@@ -35,11 +42,14 @@ teethgapx=4+fdia;
 
 prongstalkxwidth=3;
 
-stalklength=35;
+stalklength=selsz(35,55);
 overclipcupgap=5;
 overclipdepth=15;
 overcliproundr=2.0;
-overclipthick=0.5;
+overclipthick=1.0;
+overclipcupnextgap=20;
+
+hubaxlelen = selsz(25, cupwidth);
 
 overclipsmaller=-2.5;
 overclipbigger=0.0;
@@ -51,11 +61,36 @@ wingthick=3;
 armendwallthick=2.5;
 armendbasethick=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_armbase = 100;
+nondove_armhole_x = 60;
+nondove_armhole_hole = 4;
+nondove_armhole_support = 7;
+nondove_armhole_wall = 4;
+nondove_armhole_slop = 0.5;
+nondove_armhole_slop_x = 0.5;
+
 include <doveclip.scad>
 include <cliphook.scad>
 include <filamentteeth.scad>
+include <axlepin.scad>
 
 channelwidth = prongthick + slop;
 channeldepth = prongwidth + ratchettoothheight;
@@ -64,9 +99,21 @@ totalheight = channeldepth + armendbasethick;
 stalkwidth = prongwidth + prongstalkxwidth;
 
 module ArmEnd(length=120){ ////toplevel
-  translate([ratchettoothsmoothr, channelwidth/2, -armendbasethick]) {
-    rotate([0,0,-90])
-      DoveClipPairBase(h=doveclipheight);
+  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);
+    }
   }
 
   difference(){
@@ -113,43 +160,45 @@ module FilamentCupHandle(){
 }
 
 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]);
+    translate([0,cupwidth/2,0])
+      cube([cupheight + prongwidth, prongwidth, prongthick]);
   }
 }
 
 module FilamentCup() { ////toplevel
   FilamentCupHandle();
 
-  dx = cupbigrad + prongwidth;
   gapy = prongwidth;
-  dy = cupbigrad + gapy + overclipcupgap;
+  dy = cupwidth/2 + gapy + overclipcupgap;
+  baselen = dy+cupwidth/2;
 
-  translate([dx, dy, 0])
+  translate([0, dy, 0])
     FilamentCupCup();
-  translate([0, -1, 0]);
-  cube([prongwidth, dy+1, prongthick]);
+  cube([prongwidth, baselen+1, prongthick]);
 
-  midrad = cupbigrad + prongwidth/2;
+  midrad = cupwidth/2 + prongwidth/2;
 
   propshift = stalklength - overclipdepth - prongthick + propxshift;
   proptaken = propshift;
-  echo(cupbigrad, dx, midrad, propshift, proptaken);
+  echo(midrad, propshift, proptaken);
 
   translate([propshift, -1, 0]) {
     // something is wrong with the y calculation
     cube([prongwidth,
-         dy - sqrt(midrad*midrad - proptaken*proptaken) - prongwidth/2,
+         gapy+2,
          prongthick]);
   }
-  translate([0, overclipcupgap, 0])
-    rotate([0,0, 102 + fdia])
-    FilamentTeeth(fdia=fdia, h=teethh);
+  for (y = [overclipcupgap, overclipcupgap+overclipcupnextgap]) {
+    translate([0, y, 0])
+      rotate([0,0, 102 + fdia])
+      FilamentTeeth(fdia=fdia, h=teethh);
+  }
+  for (x = [-0.3, -1.3]) {
+    translate([cupheight + overclipcupnextgap*x, baselen + prongthick, 0])
+      rotate([0,0, 12 + fdia])
+      FilamentTeeth(fdia=fdia, h=teethh);
+  }      
 }
 
 module CupSecuringClipSolid(w,d,h1,h2){
@@ -176,6 +225,8 @@ module CupSecuringClip(){ ////toplevel
       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);
@@ -186,41 +237,69 @@ module ArmDoveClipPin(){ ////toplevel
   DoveClipPin(h=doveclipheight);
 }
 
+module TowerDoveClipPin(){ ////toplevel
+  DoveClipPin(h=towercliph/2);
+}
+
 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($fn=60, h=hubaxlelen+2, r=axlerad);
-  }
+  xmin = axlerad+hublwidth/2;
+  xmax = hubbigrad-hublwidth/2;
   hole = hubeffrad - hubbigrad - DoveClip_depth() - hublwidth*2;
   holewidth = DoveClipPairSane_width() - hubstemwidth*2;
-  for (ang=[0,120,240])
-    rotate([0,0,ang]) {
-      difference() {
-       translate([hubeffrad,0,0])
-         DoveClipPairSane(h=doveclipheight,
-                          baseextend = (hubeffrad - DoveClip_depth()
-                                        - hubbigrad + hublwidth));
-       if (hole>hublwidth && holewidth > 2) {
-         translate([hubbigrad + hublwidth, -holewidth/2, -1])
-           cube([hole, holewidth, hublthick+2]);
-       }
+  nondove_allwidth = nondove_armhole_wall*2 + totalwidth;
+  difference(){
+    union(){
+      difference(){
+       cylinder($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]) {
+         difference() {
+           if (usedove()){
+             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, $fn=10);
+             }
+           }
+         }
+       }
+      for (ang = [0 : 180/num_arms : 359])
+       rotate([0,0,ang]) rotate([90,0,0]) {
+         translate([0,0,-hublwidth/2])
+           linear_extrude(height=hublwidth)
+           polygon([[xmin,0.05], [xmax,0.05],
+                    [xmax,hublthick-0.2], [xmin, hubaxlelen-0.2]]);
+       }
     }
-  xmin = axlerad+hublwidth/2;
-  xmax = hubbigrad-hublwidth/2;
-  for (ang = [0 : 60 : 359])
-    rotate([0,0,ang]) rotate([90,0,0]) {
-      translate([0,0,-hublwidth/2])
-       linear_extrude(height=hublwidth)
-       polygon([[xmin,0.05], [xmax,0.05],
-                [xmax,hublthick-0.2], [xmin, hubaxlelen-0.2]]);
-    }
+    translate([0,0,-1]) cylinder($fn=60, h=hubaxlelen+2, r=axlerad);
+  }
 }
 
 module ArmExtender(){ ////toplevel
@@ -229,7 +308,123 @@ module ArmExtender(){ ////toplevel
                   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();
+}
+
 //ArmEnd();
-//FilamentCup();
+FilamentCup();
+//FilamentCupPair();
 //CupSecuringClip();
 //Hub();
+//ArmExtender();
+//Axle();
+//AxleWasher();
+//AxlePin();
+//AxleFrictionWasher();