From 8e365bfdf1632dfa9ff7b7f1ecf2b310019fa47c Mon Sep 17 00:00:00 2001
From: ewin <git@ewin.moe>
Date: Sat, 18 Oct 2025 15:50:39 -0400
Subject: [PATCH] clearance tweaks

---
 case/48ish_case.scad | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/case/48ish_case.scad b/case/48ish_case.scad
index ef649c5..48723b7 100644
--- a/case/48ish_case.scad
+++ b/case/48ish_case.scad
@@ -1,8 +1,8 @@
 $fn = 20;
 
 baseplate_thickness = 2;
-inner_clearance = 7.5;
-pcb_thickness = 1.6;
+inner_clearance = 7.5; // space inside the case for the battery/mcu to occupy
+pcb_thickness = 1.6; // thickness of the pcb
 
 module roundsquare (size, r) {
 	translate([r, r]) minkowski() {
@@ -13,12 +13,15 @@ module roundsquare (size, r) {
 
 module shell () {
 	difference() {
+		// block
 		linear_extrude(baseplate_thickness + inner_clearance + pcb_thickness) {
 			translate([-1, -1]) roundsquare([214+1*2, 67+1*2], r=2+1);
 		}
+		// cut for shelf
 		translate([0, 0, baseplate_thickness + inner_clearance]) linear_extrude(pcb_thickness + 2) {
-			roundsquare([214, 67], r=2);
+			roundsquare([214, 67], r=2-0.25); // pcb r=2 but it's not exact
 		}
+		// cut for inner clearance
 		translate([0, 0, baseplate_thickness]) linear_extrude(inner_clearance + 10) {
 			translate([1, 1]) roundsquare([214 - 1 * 2, 67 - 1 * 2], r=1);
 		}
@@ -44,20 +47,22 @@ module standoffs () {
 
 difference() {
 	shell();
-	translate([4.5, 65-.01, baseplate_thickness + inner_clearance - 7.5])
+	translate([2, 65-.01, baseplate_thickness + inner_clearance - 7.5])
 //		cube([34, 2, 30]);
 //		cube([34, 5, 6]);
-		cube([18+17-4.5, 2, 30]);
+		cube([18+17-2, 2, 30]);
+	// usb-c cutout
 	translate([17 + 18/2 - 9/2, 71, baseplate_thickness + inner_clearance - 6.75]) {
 		rotate([90, 0, 0]) linear_extrude(8) {
-			roundsquare([9, 3.5], r = 1.5);
+			roundsquare([9, 4], r = 1.5);
 		}
 	}
-	translate([4.5, 71, baseplate_thickness + inner_clearance - 3]) {
+	// power switch cutout
+	translate([4, 71, baseplate_thickness + inner_clearance - 2]) {
 		rotate([90, 0, 0]) linear_extrude(8) {
-			roundsquare([9, 3], r = 0.5);
+			roundsquare([6.5, 2], r = 0.5);
 		}
 	}
 }
 
-standoffs();
\ No newline at end of file
+standoffs();