X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=filamentspool.scad;h=30fb27f71f00c2a8f6fc3d37f38400b575a62afa;hp=c32061ec2bcd4f5870ef71df3d35820d499beee5;hb=6ac8ee1bf10034cd86af9b4504338d1555d62eb4;hpb=d7dd17a652d2f3dfcb2269ec95af9910fcc10601

diff --git a/filamentspool.scad b/filamentspool.scad
index c32061e..30fb27f 100644
--- a/filamentspool.scad
+++ b/filamentspool.scad
@@ -676,35 +676,153 @@ module StorArmHoleTest(){ ////toplevel
 }
 
 
-//----- filament guide clip spacer clip -----
+//----- filament guide spacer -----
 
-guideclip_armdia = 15.0 + 0.5;
-guideclip_armwidth = 10.2 + 0.5;
+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 FilamentGuideClipSpacerClipTemplate(){
+module FilamentGuideSpacerInnerTemplate(){
+  FilamentGuideArmTemplate();
+  translate([0, -guidespacer_armdia/2])
+    square(center=true, [guidespacer_armwidth - guidespacer_prongprotrude,
+			 guidespacer_armdia]);
+}
+
+module FilamentGuideSpacer(){ ////toplevel
   difference(){
     union(){
-      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);
+	      }
+	    }
+	  }
+	}
+      }
     }
-    FilamentGuideClipArmTemplate();
-    translate([0, -guideclip_armdia/2])
-      square(center=true, [guideclip_armwidth - guideclip_prongprotrude,
-			   guideclip_armdia]);
+    translate([0,0,-1])
+      linear_extrude(height= guidespacer_len+5)
+      FilamentGuideSpacerInnerTemplate();
   }
 }
 
-module FilamentGuideClipSpacerClip(){ ////toplevel
+
+//----- 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;
+
+guidearm_totallen = 60;
+
+guidearm_screwplatesz = 12;
+guidearm_screwplateth = 4;
+guidearm_screwhole = 4 + 0.5;
+
+guidearm_bendlen = 50;
+guidearm_bendslot = 5;
+
+// calculated
+
+guidearm_armdia = guide_armdia - guidearm_armslop;
+guidearm_armwidth = guide_armwidth - guidearm_armslop;
+guidearm_armcorelen = guide_armcorelen + guidearm_armlenslop;
+
+guidearm_base_z0 = -(guidearm_totallen - guidearm_armcorelen);
+
+guidearm_realbendlen = min(guidearm_bendlen,
+			   guidearm_totallen - guidearm_screwplateth - 0.1);
+
+module FilamentGuideArmShaftPositive(){
+  r = guidearm_armdia/2;
+
+  translate([0,0, guidearm_base_z0+1])
+    cylinder(r=r, h= guidearm_totallen);
+  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 FilamentGuideArmBase(){
+  translate([0,0, guidearm_base_z0]){
+    difference(){
+      translate([0,0, guidearm_screwplateth/2])
+	cube(center=true,
+	     [guidearm_armdia + guidearm_screwplatesz*2,
+	      guidearm_armwidth,
+	      guidearm_screwplateth]);
+      for (ts=[-1,+1]) {
+	translate([ts * (guidearm_armdia/2 + guidearm_screwplatesz/2),
+		   0,
+		   -20])
+	  cylinder(r= guidearm_screwhole/2, h=40);
+      }
+    }
+  }
+}
+
+module FilamentGuideArm(){ ///toplevel
+  intersection(){
+    difference(){
+      FilamentGuideArmShaftPositive();
+      translate([-guidearm_bendslot/2,
+		 -50,
+		 -guidearm_realbendlen + guidearm_armcorelen])
+	cube([guidearm_bendslot,
+	      100,
+	      guidearm_realbendlen + 100]);
+    }
+    cube(center=true,
+	 [guidearm_armdia*2,
+	  guidearm_armwidth,
+	  guidearm_totallen*3]);
+  }
+  FilamentGuideArmBase();
 }
 
 
@@ -726,4 +844,6 @@ module Demo(){
 //AxleFrictionWasher();
 //StorageArmLeft();
 //StorArmHoleTest();
+//FilamentGuideSpacer();
+//FilamentGuideArm();
 //Demo();