filamentspool: FilamentGuideSpacer: separate out slop (nfc)

[reprap-play.git] / filamentspool.scad

diff --git a/filamentspool.scad b/filamentspool.scad
index fcad8314064dcc276b48291e0ea455a43d5b399e..99246c99094b49bf1c79a2ffedd30df0604632be 100644 (file)
--- a/filamentspool.scad
+++ b/filamentspool.scad
@@ -40,7 +40,7 @@
 //            Hub
 //            ArmEnd x 4
 //            FilamentCup x 4  (or FilamentCupPair x 2)
-//            CupSecuringClup x 4
+//            CupSecuringClip x 4
 //
 //     You will also need  4 x M4 machine screws and nuts.
 //
@@ -54,7 +54,7 @@
 //           Hub
 //           ArmEnd x 3
 //           FilamentCup x 3  (or FilamentCup + FilamentCupPair)
-//           CupSecuringClup x 3
+//           CupSecuringClip x 3
 //           TowerDoveClipPin x 6
 //
 //     When assembling, insert one TowerDoveClipPin from each side,
@@ -676,6 +676,70 @@ module StorArmHoleTest(){ ////toplevel
 }
 
 
+//----- filament guide spacer -----
+
+guide_armdia = 15.0;
+guide_armwidth = 10.2;
+
+guidefilclip_outerdia = 22.8;
+
+guidespacer_armslop = 0.75;
+
+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_wingheight = (guidefilclip_outerdia - guidespacer_armdia)/2;
+
+module FilamentGuideArmTemplate(extra=0){
+  intersection(){
+    circle(r= (guidespacer_armdia/2) + extra);
+    square(center=true, [guidespacer_armwidth+extra*2,
+                        guidespacer_armdia + extra*2 + 10]);
+  }
+}
+
+module FilamentGuideSpacerInnerTemplate(){
+  FilamentGuideArmTemplate();
+  translate([0, -guidespacer_armdia/2])
+    square(center=true, [guidespacer_armwidth - guidespacer_prongprotrude,
+                        guidespacer_armdia]);
+}
+
+module FilamentGuideSpacer(){ ////toplevel
+  difference(){
+    union(){
+      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= guidespacer_len+5)
+      FilamentGuideSpacerInnerTemplate();
+  }
+}
+
+
 module Demo(){
   translate([-hubeffrad-30,50,0]) Hub();
   ArmEnd();