X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=filamentspool.scad;h=637a72ad4311208d2913a17f11dedbdd31f79f23;hb=8a589b3697c7ee86ccc94b2d7753919dea31b427;hp=e44b550011710e9d1dee12e8d4828867bd934bae;hpb=1cf13680665629e8fa0acba6e078e2a6157533a3;p=reprap-play.git

diff --git a/filamentspool.scad b/filamentspool.scad
index e44b550..637a72a 100644
--- a/filamentspool.scad
+++ b/filamentspool.scad
@@ -676,42 +676,108 @@ module StorArmHoleTest(){ ////toplevel
 }
 
 
-//----- filament guide clip spacer clip -----
+//----- filament guide spacer -----
 
-guideclip_armdia = 15.0 + 0.5;
-guideclip_armwidth = 10.2 + 0.5;
-guideclip_armspacelen = 15.3 - 0.25;
+guide_armdia = 15.0;
+guide_armwidth = 10.2;
+guide_armcorelen = 15.3;
 
-guideclip_prongprotrude = 4;
-guideclip_thick = 1.6;
+guidefilclip_outerdia = 22.8;
 
-module FilamentGuideClipArmTemplate(extra=0){
+guidespacer_armslop = 0.75;
+guidespacer_armlenslop = 0.75;
+
+guidespacer_prongprotrude = 4;
+guidespacer_thick = 1.6;
+
+// calculated
+
+guidespacer_armdia = guide_armdia + guidespacer_armslop;
+guidespacer_armwidth = guide_armwidth + guidespacer_armslop;
+guidespacer_len = guide_armcorelen + guidespacer_armlenslop;
+
+guidespacer_wingheight = (guidefilclip_outerdia - guidespacer_armdia)/2;
+
+module FilamentGuideArmTemplate(extra=0){
   intersection(){
-    circle(r= (guideclip_armdia/2) + extra);
-    square(center=true, [guideclip_armwidth+extra*2,
-			 guideclip_armdia + extra*2 + 10]);
+    circle(r= (guidespacer_armdia/2) + extra);
+    square(center=true, [guidespacer_armwidth+extra*2,
+			 guidespacer_armdia + extra*2 + 10]);
   }
 }
 
-module FilamentGuideClipSpacerClipInnerTemplate(){
-  FilamentGuideClipArmTemplate();
-  translate([0, -guideclip_armdia/2])
-    square(center=true, [guideclip_armwidth - guideclip_prongprotrude,
-			 guideclip_armdia]);
+module FilamentGuideSpacerInnerTemplate(){
+  FilamentGuideArmTemplate();
+  translate([0, -guidespacer_armdia/2])
+    square(center=true, [guidespacer_armwidth - guidespacer_prongprotrude,
+			 guidespacer_armdia]);
 }
 
-module FilamentGuideClipSpacerClip(){ ////toplevel
+module FilamentGuideSpacer(){ ////toplevel
   difference(){
     union(){
-      linear_extrude(height= guideclip_armspacelen)
-	FilamentGuideClipArmTemplate(extra= guideclip_thick);
+      linear_extrude(height= guidespacer_len)
+	FilamentGuideArmTemplate(extra= guidespacer_thick);
+      for (angle=[26, 60]) {
+	for (m=[0,1]) {
+	  mirror([m,0,0]) {
+	    rotate([0,0,angle]) {
+	      hull(){
+		for (t=[[0, guidespacer_wingheight],
+			[guidespacer_len-1, -guidespacer_wingheight]])
+		  translate([0,0, t[0] + 0.5])
+		    cube([guidespacer_thick, guidespacer_armdia + t[1]*2,
+		      1],
+			 center=true);
+	      }
+	    }
+	  }
+	}
+      }
     }
     translate([0,0,-1])
-      linear_extrude(height= guideclip_armspacelen+2)
-      FilamentGuideClipSpacerClipInnerTemplate();
+      linear_extrude(height= guidespacer_len+5)
+      FilamentGuideSpacerInnerTemplate();
+  }
+}
+
+
+//----- replacement filament guide arm for TAZ-5 -----
+
+guidearm_armslop = 0.25;
+guidearm_armlenslop = 0.25;
+
+guidearm_hookprotr = 4;
+guidearm_hookprotrflat = 1;
+guidearm_hookslope = 0.3;
+
+// calculated
+
+guidearm_armdia = guide_armdia - guidearm_armslop;
+guidearm_armwidth = guide_armwidth - guidearm_armslop;
+guidearm_armcorelen = guide_armcorelen + guidearm_armlenslop;
+
+module FilamentGuideArmShaftPositive(){
+  r = guidearm_armdia/2;
+
+  translate([0,0,-1])
+    cylinder(r=r, h= guidearm_armcorelen+2);
+  translate([0,0, guidearm_armcorelen]){
+    hull(){
+      for (ts=[-1,+1]) {
+	translate([ts * guidearm_hookprotr, 0,0])
+	  cylinder(r=r, h=guidearm_hookprotrflat);
+      }
+      translate([0,0, guidearm_hookprotr/guidearm_hookslope])
+	cylinder(r=r, h=guidearm_hookprotrflat);
+    }
   }
 }
 
+module FilamentGuideArm(){ ///toplevel
+  FilamentGuideArmShaftPositive();
+}
+
 
 module Demo(){
   translate([-hubeffrad-30,50,0]) Hub();
@@ -731,4 +797,6 @@ module Demo(){
 //AxleFrictionWasher();
 //StorageArmLeft();
 //StorArmHoleTest();
+//FilamentGuideSpacer();
+//FilamentGuideArm();
 //Demo();