From fc5c22aeb877892c1caabf628d2bc675de681ff3 Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Sat, 01 Sep 2018 15:04:55 +0000
Subject: cap springpad calculations for longer screws

---
diff --git a/another.scad b/another.scad
index 8ba0d58..6bb0664 100644
--- a/another.scad
+++ b/another.scad
@@ -395,7 +395,7 @@ module the_extruder(
   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,fsw-st_screw_l+hf);
+  h = max(hf*2,fsw-st_screw_l+hf);
   translate([-gearbox_d/2+fsw-h,-longwing,filament_elevation])
   rotate([0,90,0]) difference() {
    union() {
@@ -413,7 +413,8 @@ module the_extruder(
     }
    }
    translate([0,0,-epsilon])
-   cylinder(d=st_screw_d+st_screw_d_tolerance,h=st_screw_l-fsw+h+2*epsilon,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
+   cylinder(d=st_screw_d+st_screw_d_tolerance,
+    h=min(st_screw_l,fsw-hf)-fsw+h+2*epsilon,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
   }
  }
 
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