X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=filamentspool.scad;h=28b4c97956d7080f671ed9351f8bfd7e3cdd91ca;hp=c3ac373d17cbe443b4f325b33eb5b667a9f9d5fa;hb=d9ea5bab0b84b92ead552dfc1f9c7c007213ad7e;hpb=eee4c9bf6a974c6ffb2231ed1f1357639c74fbcb

diff --git a/filamentspool.scad b/filamentspool.scad
index c3ac373..28b4c97 100644
--- a/filamentspool.scad
+++ b/filamentspool.scad
@@ -123,8 +123,6 @@
 //     Set
 //           fdia=2.85
 //           lightduty=false
-//     (or look in filamentspool-sm.scad).
-//
 //     And print one of these, according to taste
 //            StorageArmLeft
 //            StorageArmRight
@@ -132,7 +130,18 @@
 //     NB that the `light duty' version of this is shorter and
 //     will only take two `light duty' spools.
 //
-// For the above, I used the Cura `High detail' PLA profile because
+// A longer arm for three spools is also available:
+//     Set
+//           fdia=2.85
+//           lightduty=false
+//           storarm_spools=3
+//     (or look in filamentspool-storarm3.scad).
+//
+//     And print one of these, according to taste
+//            StorageArmLeft
+//            StorageArmRight
+//
+// For all of these, I used the Cura `High detail' PLA profile because
 // I wanted it pretty, but the `Standard' profile should do fine.
 //
 // ===== Spools for 1.75mm filament =====
@@ -290,35 +299,6 @@ module ArmEnd(length=armend_length){ ////toplevel
     }
   }
 
-  for (otherside=[0,1]) {
-    for (circum = [300:100:1500]) {
-      assign(rad = circum / tau)
-	assign(fn = str("filamentspool-number-n",circum,".dxf"))
-	assign(rotateoffset = [0, totalwidth/2, 0])
-	assign(xlen = rad - real_exteffrad) {
-	if (xlen >= numbers_tick_width/2
-	    + (otherside ? numbers_height_allow : 0) &&
-	    xlen <= length - (otherside ? 0 : numbers_height_allow))
-	  translate([xlen, -armendwallthick,
-		     -armendbasethick + (totalheight - numbers_tick_len)/2])
-	  translate(rotateoffset)
-	  rotate([0,0, otherside*180])
-	  translate(-rotateoffset){
-	    translate([-numbers_tick_width/2, -1, 0])
-	      cube([numbers_tick_width, numbers_relief+1, numbers_tick_len]);
-	    translate([numbers_tick_width/2 + numbers_tick_linespc,
-		       1,
-		       numbers_tick_len])
-	      rotate([90,0,0])
-	      rotate([0,0,-90])
-	      linear_extrude(height= numbers_relief+1)
-	      //    scale(templatescale)
-	      import(file=fn, convexity=100);
-	  }
-      }
-    }
-  }
-
   difference(){
     union(){
       difference(){
@@ -342,6 +322,36 @@ module ArmEnd(length=armend_length){ ////toplevel
 	}
       }
     }
+
+    for (otherside=[0,1]) {
+      for (circum = [300:100:1500]) {
+	assign(rad = circum / tau)
+	  assign(fn = str("filamentspool-number-n",circum,".dxf"))
+	  assign(rotateoffset = [0, totalwidth/2, 0])
+	  assign(xlen = rad - real_exteffrad) {
+	  if (xlen >= numbers_tick_width/2
+	      + (otherside ? numbers_height_allow : 0) &&
+	      xlen <= length - (otherside ? 0 : numbers_height_allow))
+	    translate([xlen, -armendwallthick,
+		       -armendbasethick + (totalheight - numbers_tick_len)/2])
+	    translate(rotateoffset)
+	    rotate([0,0, otherside*180])
+	    translate(-rotateoffset){
+	      translate([-numbers_tick_width/2, -1, 0])
+		cube([numbers_tick_width, numbers_relief+1, numbers_tick_len]);
+	      translate([numbers_tick_width/2 + numbers_tick_linespc,
+			 1,
+			 numbers_tick_len])
+		rotate([90,0,0])
+		rotate([0,0,-90])
+		linear_extrude(height= numbers_relief+1)
+		//    scale(templatescale)
+		import(file=fn, convexity=100);
+	    }
+	}
+      }
+    }
+
     if (usedove()){
       translate([0, -armendwallthick, -armendbasethick])
 	Commitid_BestCount_M([length/3, totalwidth]);
@@ -690,11 +700,16 @@ storarm_screw_hole_head_slop = 1.5;
 
 // calculated
 
+storarm_spools = 2;
+
 storarm_axlerad = hubaxlerad - storarm_axleslop;
-storarm_mainlen = hubaxlelen*2 + storarm_axleslop
+storarm_mainlen = hubaxlelen*storarm_spools
+  + storarm_axleslop*(storarm_spools-1)
   + (storarm_cope_hubaxle_mk1 ? 10 : 0);
 storarm_totlen = storarm_mainlen + storarm_hooklen;
 
+storarm_taller = storarm_axleslop * (storarm_spools-2);
+
 storarm_mid_off_y = storarm_axlerad;
 
 storarm_base_off_y = storarm_mid_off_y + storarm_base_h/2;
@@ -712,7 +727,7 @@ module StorageArmDiagPartSide(xmin, xmax){
   }
 }
 
-module StorageArmDiagPart(xmin, xmax, shear, adjbot){
+module StorageArmDiagPart(xmin, xmax, adjbot, shear){
   hull(){
     StorageArmDiagPartSide(xmin,xmax);
 
@@ -750,23 +765,26 @@ module StorageArmAtMountingHoles(){
 
 module StorageArmRight(){ ////toplevel
   shear = storarm_hookheight / (storarm_mainlen/2);
+  shear2 = shear + storarm_taller / (storarm_mainlen/2);
+  base_xyz = [-storarm_base_d, -storarm_base_off_y, storarm_base_w];
 
-  StorageArmDiagPart(-1, storarm_mainlen/2+1, shear, 0);
-  StorageArmDiagPart(storarm_mainlen/2-1, storarm_mainlen+1, shear/2,
-		     storarm_hookheight/2);
+  StorageArmDiagPart(-1, storarm_mainlen/2+1,
+		     -storarm_taller, shear2);
+  StorageArmDiagPart(storarm_mainlen/2-1, storarm_mainlen+1,
+		     storarm_hookheight/2, shear/2);
 
   translate([0, storarm_hookheight, 0])
     StorageArmDiagPart(storarm_mainlen, storarm_totlen,
-		       shear/2, -storarm_hookheight/2);
+		       -storarm_hookheight/2, shear/2);
 
   difference(){
     union(){
       hull(){
-	translate([-storarm_base_d, -storarm_base_off_y, storarm_base_w])
+	translate(base_xyz)
 	  rotate([0,90,0])
 	  linear_extrude(height=storarm_base_mind)
 	  StorageArmBaseTemplate();
-	StorageArmDiagPart(-1, 0, shear, 0);
+	StorageArmDiagPart(-1, 0, -storarm_taller, shear);
       }
       StorageArmAtMountingHoles(){
 	cylinder(r= storarm_screw_hole_head/2,
@@ -781,6 +799,9 @@ module StorageArmRight(){ ////toplevel
 	cylinder(r= (storarm_screw_hole_head + storarm_screw_hole_head_slop)/2,
 		 h=20);
     }
+    translate(base_xyz + [0, storarm_base_h/4, -storarm_base_w/4])
+      rotate([0,90,0])
+      Commitid_BestCount([storarm_base_w/2, storarm_base_h/2]);
   }
 }