From: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Date: Fri, 24 Jan 2014 11:21:31 +0000 (+0100)
Subject: case.scad: mark the battery polarity
X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=commitdiff_plain;h=138fbcfab1abb032b8b532e845bfb92372a8d827;p=heater.git

case.scad: mark the battery polarity
---

diff --git a/case.scad b/case.scad
index c1df55c..f96549a 100644
--- a/case.scad
+++ b/case.scad
@@ -50,6 +50,8 @@ mountcone_h = mounthole_h + 2*wall;
 
 clip_pretension = 0.5;
 
+plus_width = 4.5; // width of the + sign
+
 module case_body() {
 	hull() {
 		translate([-batt_len/2-2*wall-cable_sep, -batt_diam/2-wall, 0])
@@ -205,6 +207,13 @@ module case() {
 		for(x=[-1,1]) scale([x, 1, 1])
 		translate([batt_len/2+cable_sep+wall+10, batt_diam/2-pcb_width/2, -batt_diam/2-2*pcb_comp_h-pcb_thick-wall-eps])
 			cylinder(r1 = 10, r2 = 10 - wall, h = wall + 2*eps);
+		// plus sign - vertical line
+		translate([batt_len/2 - 1.5*wall-plus_width/2, -plus_width/2, -batt_diam/2-wall])
+			cube([wall, plus_width, infty]);
+		// plus and minus signs - horizontal line
+		for(x=[-1,1]) scale([x, 1, 1])
+		translate([batt_len/2 - wall - plus_width, -wall/2, -batt_diam/2-wall])
+			cube([plus_width, wall, infty]);
 	};
 	// clip barrier
 	for (x = [-1, 1]) scale([x, 1, 1]) hull () {