From 17efb079d90f5bb8a8f9e5bd56c982cd5733e025 Mon Sep 17 00:00:00 2001
From: Garth Minette <gminette@gmail.com>
Date: Tue, 16 Mar 2021 14:46:11 -0700
Subject: [PATCH] Fixes for various example bugs.

---
 attachments.scad     | 4 ++--
 linear_bearings.scad | 2 +-
 masks.scad           | 2 +-
 partitions.scad      | 2 +-
 shapes2d.scad        | 1 +
 5 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/attachments.scad b/attachments.scad
index c962f05..04d8a17 100644
--- a/attachments.scad
+++ b/attachments.scad
@@ -1072,8 +1072,8 @@ module attach(from, to, overlap, norot=false)
 // Example:
 //   diff("mask")
 //   cube([50,60,70],center=true)
-//       face_profile(TOP,except=TOP+LEFT)
-//           mask2d_roundover(r=10, inset=2);
+//       face_profile(TOP,r=10)
+//           mask2d_roundover(r=10);
 module face_profile(faces=[], r, d, convexity=10) {
     faces = is_vector(faces)? [faces] : faces;
     assert(all([for (face=faces) is_vector(face) && sum([for (x=face) x!=0? 1 : 0])==1]), "Vector in faces doesn't point at a face.");
diff --git a/linear_bearings.scad b/linear_bearings.scad
index 1fc5047..cd7b7d2 100644
--- a/linear_bearings.scad
+++ b/linear_bearings.scad
@@ -112,7 +112,7 @@ module linear_bearing_housing(d=15, l=24, tab=7, gap=5, wall=3, tabwall=5, screw
 
             up(tabh) {
                 // Screwhole
-                fwd(ogap/2-2+0.01) screw(screwsize=screwsize*1.06, screwlen=ogap, headsize=screwsize*2, headlen=10, orient=FWD);
+                fwd(ogap/2-2+0.01) generic_screw(screwsize=screwsize*1.06, screwlen=ogap, headsize=screwsize*2, headlen=10, orient=FWD);
 
                 // Nut holder
                 back(ogap/2-2+0.01) metric_nut(size=screwsize, hole=false, anchor=BOTTOM, orient=BACK);
diff --git a/masks.scad b/masks.scad
index ba36ae7..406947d 100644
--- a/masks.scad
+++ b/masks.scad
@@ -841,7 +841,7 @@ module teardrop_corner_mask(r, angle, excess=0.1, d, anchor=CENTER, spin=0, orie
     r = get_radius(r=r, d=d, dflt=1);
     difference() {
         translate(-[1,1,1]*excess) cube(r+excess, center=false);
-        translate([1,1,1]*r) onion(r=r,maxang=angle,orient=DOWN);
+        translate([1,1,1]*r) onion(r=r, ang=angle, orient=DOWN);
     }
 }
 
diff --git a/partitions.scad b/partitions.scad
index 7ef55e7..2e516a0 100644
--- a/partitions.scad
+++ b/partitions.scad
@@ -128,7 +128,7 @@ module partition_cut_mask(l=100, h=100, cutsize=10, cutpath=undef, gap=0, spin=0
     rot(from=UP,to=orient) {
         rotate(spin) {
             linear_extrude(height=h, convexity=10) {
-                stroke(path, width=$slop*2);
+                stroke(path, width=max(0.1, $slop*2));
             }
         }
     }
diff --git a/shapes2d.scad b/shapes2d.scad
index a9b2d24..16cd306 100644
--- a/shapes2d.scad
+++ b/shapes2d.scad
@@ -168,6 +168,7 @@ module stroke(
 
     assert(is_num(width) || (is_vector(width) && len(width)==len(path)));
     width = is_num(width)? [for (x=path) width] : width;
+    assert(all([for (w=width) w>0]));
 
     endcap1 = first_defined([endcap1, endcaps, if(!closed) plots, "round"]);
     endcap2 = first_defined([endcap2, endcaps, plots, "round"]);