From 8a7656266fb788a13fd3c8ce6a397413ec0fee72 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Thu, 14 Jul 2022 20:40:14 +0100
Subject: [PATCH] powerbank-bike-clamp: Round inner corners

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 powerbank-bike-clamp.scad | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/powerbank-bike-clamp.scad b/powerbank-bike-clamp.scad
index 1fd2507..bedb11b 100644
--- a/powerbank-bike-clamp.scad
+++ b/powerbank-bike-clamp.scad
@@ -27,6 +27,8 @@ clamp_min_width = 20;
 
 clamp_gap = 2;
 
+corner_rounding_r = 4;
+
 lower_th = 1;
 
 overlap_l = 0.1;
@@ -149,6 +151,9 @@ module TubeClampLeft() { ////toplevel
 
 module TubeClampRightPlan(){ ////toplevel
   difference(){
+    // It broke at the inside corner, round these a bit
+    offset(r=-corner_rounding_r)
+    offset(r=+corner_rounding_r)
     difference(){
       union(){
 	rectfromto([ clamp_gap/2,                   bot_y ],
-- 
2.30.2