filamentspool wip

[reprap-play.git] / filamentspool.scad

diff --git a/filamentspool.scad b/filamentspool.scad
index c88e30c44844bf32a32b7e716cc896831dd6fb0e..8dbf1bf3631764632bb07409907807940ef2d150 100644 (file)
--- a/filamentspool.scad
+++ b/filamentspool.scad
@@ -10,6 +10,13 @@ ratchettoothheight=5;
 ratchettoothsmoothr=1;
 ratchettoothslope=0.75;
 overlap=0.5;
+cupbigrad=35;
+
+prongstalkxwidth=3;
+
+stalklength=40;
+overclipcupgap=5;
+overclipheight=15;
 
 armendwallthick=2.5;
 armendbasethick=1.2;
@@ -17,11 +24,13 @@ armendbasethick=1.2;
 ratchetpawl=ratchetstep-ratchettooth-bigslop*2;
 
 include <doveclip.scad>
+include <cliphook.scad>
 
 channelwidth = prongthick + slop;
 channeldepth = prongwidth + ratchettoothheight;
 totalwidth = armendwallthick*2 + channelwidth;
 totalheight = channeldepth + armendbasethick;
+stalkwidth = prongwidth + prongstalkxwidth;
 
 doveclipheight = totalheight;
 
@@ -31,13 +40,13 @@ module ArmEnd(length=120){
       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+2, channelwidth, channeldepth+1]);
+  }
+  for (dx = [0 : ratchetstep : length - stalklength]) translate([dx,0,0]) {
     translate([ratchettoothsmoothr+0.5, armendwallthick/2, 0]) minkowski(){
       rotate([90,0,0])
        cylinder($fn=20, r=ratchettoothsmoothr, h=armendwallthick);
@@ -51,11 +60,13 @@ module ArmEnd(length=120){
   }
 }
 
-module FilamentHandle(stalklength=50){
+module FilamentCupHandle(){
   pawlusewidth = ratchetpawl-ratchettoothsmoothr*2;
   mirror([0,1,0]) {
-    cube([stalklength, prongwidth, prongthick]);
-    translate([ratchettoothsmoothr, prongwidth, 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     ],
@@ -70,5 +81,39 @@ module FilamentHandle(stalklength=50){
   }
 }
 
+module FilamentCupCup(){
+  xstraight = cupbigrad;
+  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() {
+  FilamentCupHandle();
+
+  dx = cupbigrad + prongwidth;
+  dy = cupbigrad + prongwidth + overclipcupgap;
+
+  translate([dx, dy, 0])
+    FilamentCupCup();
+  translate([0, -1, 0]);
+  cube([prongwidth, dy+1, prongthick]);
+
+  midrad = cupbigrad + prongwidth/2;
+
+  propshift = stalklength - overclipheight - prongthick;
+  proptaken = propshift;
+  echo(cupbigrad, dx, midrad, propshift, proptaken);
+
+  translate([propshift, -1, 0])
+    cube([prongwidth,
+         dy - sqrt(midrad*midrad - proptaken*proptaken),
+         prongthick]);
+}
+
 //ArmEnd();
-FilamentHandle();
+FilamentCup();