From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 4 May 2025 21:54:58 +0000 (+0100)
Subject: toolbox-inserts: rails wip reorg
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=0a5accae2f5537bda786ad449406340ea637af21;p=reprap-play.git

toolbox-inserts: rails wip reorg

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---

diff --git a/toolbox-inserts.scad b/toolbox-inserts.scad
index df5312d..f3f6461 100644
--- a/toolbox-inserts.scad
+++ b/toolbox-inserts.scad
@@ -228,13 +228,17 @@ module RailMountPositiveElevation() {
     ellipse([ rail_mount_mid_nom_r_w, rail_mount_mid_depth ]/2);
 }
 
-// x origin is LHS of box
+// origin is LHS of box, y is along the rail (ie, x in the rest of the model)
+module RailSpaceNegative(length) {
+  translate([ 0, rail_mount_back_brace,0 ]) {
+    linextr_y_xz(rail_mount_tongue_len, length)
+      RailSpaceCutoutElevation();
+  }
+}
 module RailMountNegative(length) {
   translate([ 0, rail_mount_back_brace,0 ]) {
     linextr_y_xz(0, rail_mount_tongue_len + 1)
       RailMountCutoutElevation();
-    linextr_y_xz(rail_mount_tongue_len, length)
-      RailSpaceCutoutElevation();
   }
 }
 module RailMountPositive() {
@@ -244,8 +248,16 @@ module RailMountPositive() {
   }
 }
 
-//---------- plates and the fixing holes ----------
+module AtRails() {
+  for (mx = [0,1])
+    for (y = rail_y)
+      mirror([mx, 0, 0])
+	translate([-box_x/2, y, 0])
+	rotate([0, 0, -90])
+	children();
+}
 
+//---------- plates and the fixing holes ----------
 
 module FullPlate(right) { ////toplevel
   render() union() {
@@ -255,12 +267,8 @@ module FullPlate(right) { ////toplevel
 	linextr(-20, 0) square(1000, center=true);
       }
 
-      for (mx = [0,1]) for (y = rail_y) {
-	mirror([mx, 0, 0])
-	  translate([-box_x/2, y, 0])
-	  rotate([0, 0, -90])
-	  RailMountNegative(box_x/2);
-      }
+      AtRails() RailSpaceNegative(box_x/2);
+      AtRails() RailMountNegative(box_x/2);
 
       AtPlateFixings() render() {
 	linextr(-20, fixing_head_top_z)
@@ -400,6 +408,7 @@ module RailMountTest(){ ////toplevel
     linextr_y_xz(0, 30)
       rectfromto([-15, -below_plane_z ],
 		 [+15,  0             ]);
+    RailSpaceNegative(30);
     RailMountNegative(30);
   }
   RailMountPositive();