better indication of spring tensioner position

1 files changed, 15 insertions, 6 deletions

diff --git a/another.scad b/another.scad
index a25e047..fd73a61 100644
--- a/another.scad
+++ b/another.scad
@@ -382,43 +382,52 @@ module the_extruder(
    label=body_label;
    label_thickness=body_label_thickness;
    label_len = len(label);
    labelspace = [gearbox_d/2-mount_screwhead_d/2-min_xy_shell,longwing-(mount_screwhead_d-st_split_w-st_split_w_tolerance)/2-2*min_xy_shell];
    translate([0,0,body_h-label_thickness])
    linear_extrude(height=label_thickness+epsilon,convexity=64)
    translate([-mount_screwhead_d/2-min_xy_shell-labelspace.x/2,-longwing+(st_split_w+st_split_w_tolerance)/2+min_xy_shell+labelspace.y/2])
    mirror([left?0:1,0])
    text(text=label,size=labelspace.x/label_len,halign="center",valign="center",font="Arial Black");
   }else sphere(d=epsilon); // to avoid makefile breakage
  }
 
+ st_bump = 4*extrusion_width;
+ st_bump_tip = 2*extrusion_width;
  module springpad() {
   smalld=st_screw_d+st_screw_d_tolerance+min_xy_shell;
   bigd = spring_d+spring_d_clearance/2;
   hf = (bigd-smalld)/2;
-  h = max(hf*2,fsw-st_screw_l+hf);
+  h = max(hf*3,fsw-st_screw_l+hf);
   translate([-gearbox_d/2+fsw-h,-longwing,filament_elevation])
   rotate([0,90,0]) difference() {
    union() {
     cylinder(d1=smalld,d2=bigd,h=hf,$fn=fnd*bigd);
     translate([0,0,hf-epsilon])
     cylinder(d=bigd,h=h-hf,$fn=fnd*bigd);
     translate([0,0,h])
     sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4);
     l = body_h-ls_z;
     w = sp_ch;
-    hull() translate([0,-st_split_w/2,0]) mirror([1,0,0]) {
-     translate([0,0,w])
-     cube(size=[l,st_split_w,w]);
-     cube(size=[l-w,st_split_w,2*w]);
+    translate([0,-st_split_w/2,0]) mirror([1,0,0]) {
+     hull()  {
+      translate([0,0,w+st_bump])
+      cube(size=[l+st_bump,st_split_w,w]);
+      cube(size=[l-w,st_split_w,2*w]);
+     }
+     translate([l,0,w+st_bump]) hull() {
+      cube(size=[st_split_w,st_split_w,st_bump]);
+      translate([0,-st_bump+st_bump_tip,st_bump]) mirror([0,0,1])
+      cube(size=[st_split_w,st_split_w+2*(st_bump-st_bump_tip),st_bump_tip]);
+     }
     }
    }
    translate([0,0,-epsilon])
    cylinder(d=st_screw_d+st_screw_d_tolerance,
     h=min(st_screw_l,fsw-hf)-fsw+h+2*epsilon,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
   }
  }
 
  module knob() {
   ch = knob_indent_d/2;
   knob_bore_l = body_h-protrusion_h-pulley_elevation-pulley_h-knob_v_clearance;
   translate([0,0,body_h+epsilon]) {
@@ -455,25 +464,25 @@ module the_extruder(
    mirror([left?0:1,0])
    text(text=knob_label,size=ts,halign="center",valign="center",font="Arial Black");
   }else sphere(d=epsilon); // to avoid makefile breakage
  }
 
  module debug() {
   difference() {
    children();
    if(debug) {
     // spring tensioner debug cutout
     translate([-gearbox_d/2,-longwing,ls_z]) rotate([0,-90,0])
     translate([0,-lever_thickness/2-1,-gearbox_d-1])
-    cube(size=[body_h/2+1,lever_thickness/2+1,gearbox_d+2]);
+    cube(size=[body_h-ls_z+st_bump+1,lever_thickness/2+1,gearbox_d+2]);
     // lever axis debug cutout
     translate([mount_d/2,0,-1])
     rotate([0,0,-45])
     cube(size=[gearbox_d-mount_d,gearbox_d-mount_d,body_h+knob_h+2]);
     // idler debug cutout
     translate([0,0,ls_z])
     place_idler()
     rotate([0,0,-45])
     translate([0,0,-lever_thickness/2-epsilon])
     cube(size=[lsd*sqrt(2)/2+1,lsd*sqrt(2)/2+1,
                lever_thickness+2*epsilon]);
     // pushfit debug cutout