X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=filamentspool.scad;h=212f61709d8a5621370d28375e05695582c5ed29;hb=8e0e7a7e91cf9817aeb004ae09cf3b459a46c500;hp=94bffe486d9a41bf9f5af68cf003b361c807b443;hpb=ffe36c753d565fb8f5b18409f7c04a69e2fcc466;p=reprap-play.git

diff --git a/filamentspool.scad b/filamentspool.scad
index 94bffe4..212f617 100644
--- a/filamentspool.scad
+++ b/filamentspool.scad
@@ -680,19 +680,23 @@ module StorArmHoleTest(){ ////toplevel
 
 guide_armdia = 15.0;
 guide_armwidth = 10.2;
+guide_armcorelen = 25.0;
+guide_clipcirclethick = 10.0;
 
 guidefilclip_outerdia = 22.8;
 
 guidespacer_armslop = 0.75;
+guidespacer_armlenslop = 1.05;
 
 guidespacer_prongprotrude = 4;
 guidespacer_thick = 1.6;
-guidespacer_len = 15.3 + 0.75;
 
 // calculated
 
 guidespacer_armdia = guide_armdia + guidespacer_armslop;
 guidespacer_armwidth = guide_armwidth + guidespacer_armslop;
+guidespacer_len = guide_armcorelen - guide_clipcirclethick
+  + guidespacer_armlenslop;
 
 guidespacer_wingheight = (guidefilclip_outerdia - guidespacer_armdia)/2;
 
@@ -740,6 +744,103 @@ module FilamentGuideSpacer(){ ////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;
+
+guidearm_stopthick = 4;
+
+// 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);
+guidearm_slopelen = guidearm_hookprotr/guidearm_hookslope;
+
+module FilamentGuideArmStop(h){
+  for (ts=[-1,+1]) {
+    translate([ts * guidearm_hookprotr, 0,0])
+      cylinder(r=guidearm_armdia/2, h, $fn=80);
+  }
+}
+
+module FilamentGuideArmShaftPositive(){
+  r = guidearm_armdia/2;
+
+  translate([0,0, guidearm_base_z0+1])
+    cylinder(r=r, h= guidearm_totallen, $fn=80);
+  translate([0,0, guidearm_armcorelen]){
+    hull(){
+      FilamentGuideArmStop(guidearm_hookprotrflat);
+      translate([0,0, guidearm_slopelen])
+	cylinder(r=r, h=guidearm_hookprotrflat, $fn=80);
+    }
+  }
+  mirror([0,0,1])
+    FilamentGuideArmStop(guidearm_stopthick);
+}
+
+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, $fn=20);
+      }
+    }
+  }
+}
+
+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();
+}
+
+module FilamentGuideArmPrint(){ ////toplevel
+  rotate([90,0,0])
+    FilamentGuideArm();
+}
+
 module Demo(){
   translate([-hubeffrad-30,50,0]) Hub();
   ArmEnd();
@@ -759,4 +860,6 @@ module Demo(){
 //StorageArmLeft();
 //StorArmHoleTest();
 //FilamentGuideSpacer();
+//FilamentGuideArm();
+//FilamentGuideArmPrint();
 //Demo();