From 32b8dbd19b009091567d8e73636ffa50ea2d6335 Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Sat, 01 Sep 2018 14:47:19 +0000
Subject: better calculate springpad size

---
diff --git a/another.scad b/another.scad
index faa41da..92187c5 100644
--- a/another.scad
+++ b/another.scad
@@ -390,8 +390,8 @@ 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 = hf*3.5;
-  translate([-gearbox_d/2+st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+1,-longwing,filament_elevation])
+  h = max(hf,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,$fn=fnd*bigd);
@@ -408,7 +408,7 @@ module the_extruder(
     }
    }
    translate([0,0,-epsilon])
-   cylinder(d=st_screw_d+st_screw_d_tolerance,h=2*hf+epsilon,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
+   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));
   }
  }
 
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