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-rw-r--r--chess/rook_alt.scad17
1 files changed, 11 insertions, 6 deletions
diff --git a/chess/rook_alt.scad b/chess/rook_alt.scad
index a1d2f2b..ecc0219 100644
--- a/chess/rook_alt.scad
+++ b/chess/rook_alt.scad
@@ -53,9 +53,15 @@ head_radius = 1;
head_height = 1;
stem_height = total_height - base_height - (head_height / 2);
+// Can set ridge_count to a coefficient or ratio of $fn or a static number
+ridge_count = $fn;
+ridge_angle_1 = 360 / ridge_count;
+ridge_angle_2 = (360 / ridge_count) / 2;
+ridge_width = (head_radius/ridge_count)*2;
+
// ridge_offset will set the ridges to go over the corners
ridge_offset_check = 1;
-ridge_offset = ridge_offset_check * ((360/$fn)/2);
+ridge_offset = ridge_offset_check * ridge_angle_2;
cylinder(base_height/2, r = base_radius);
translate([0, 0, base_height/2])
@@ -67,11 +73,10 @@ difference() {
cylinder(head_height, r = head_radius);
translate([0, 0, total_height - (head_height/4)]) {
cylinder(head_height, r = head_radius * 0.75);
- // this rotation will work for $fn = 8 or 6
- for (i = [0:$fn]) {
- rotate([0, 0, (i * (360/($fn))) - ridge_offset])
- rotate_extrude(angle = 360/$fn)
- square([head_radius, head_height]);
+ for (i = [1:ridge_count]) {
+ rotate([0, 0, (i * ridge_angle_1) - ridge_offset])
+ translate([0, -(ridge_width / 2), 0])
+ cube([head_radius, ridge_width, head_height], false);
}
}
}