From 1092211601c817bed81766ef3246bf52755f6331 Mon Sep 17 00:00:00 2001
From: Jonas Gunz <himself@jonasgunz.de>
Date: Fri, 1 Nov 2024 17:02:58 +0100
Subject: add dip storage bin

---
 Makefile | 11 +++++++++++
 dip.scad | 30 ++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+)
 create mode 100644 dip.scad

diff --git a/Makefile b/Makefile
index 874a9b8..72b28a9 100644
--- a/Makefile
+++ b/Makefile
@@ -30,6 +30,8 @@ CASE_BASE_SIZES = $(STLDIR)/case_base_2x1.stl $(STLDIR)/case_base_2x2.stl $(STLD
 		  $(STLDIR)/case_base_4x4.stl $(STLDIR)/case_base_4x5.stl $(STLDIR)/case_base_4x6.stl \
 		  $(STLDIR)/case_base_5x5.stl
 
+DIP_SIZES =	  $(STLDIR)/dip_1x1.stl $(STLDIR)/dip_2x1.stl $(STLDIR)/dip_2x2.stl $(STLDIR)/dip_2x3.stl $(STLDIR)/dip_3x3.stl
+
 .PHONY: _default
 _default: stl
 
@@ -90,6 +92,15 @@ $(STLDIR)/case_base_%.stl: case_base.scad
 $(STLDIR)/case_base.stl: $(CASE_BASE_SIZES)
 	@echo
 
+$(STLDIR)/dip_%.stl: dip.scad
+	@echo [ STL ] $< $*
+	@$(SCAD) $(STLOPTS) \
+		-D ux=$(firstword $(subst x, ,$*)) -D uy=$(word 2,$(subst x, ,$*)) \
+		-o $@ $<
+
+$(STLDIR)/dip.stl: $(DIP_SIZES)
+	@echo
+
 # Generic Builds
 
 $(STLDIR)/%.stl: %.scad
diff --git a/dip.scad b/dip.scad
new file mode 100644
index 0000000..4cd7206
--- /dev/null
+++ b/dip.scad
@@ -0,0 +1,30 @@
+use <gridfinity.scad>
+
+magnets = false;
+
+ux = 2;
+uy = 1;
+uz = 2;
+
+pin_length = 3;
+pin_spacing = 2.54;
+
+pin_hole_percent = 0.8;
+
+function hc_max(m) = floor( m / pin_spacing );
+
+module pins_negative(cnt_x, cnt_y) {
+	for (ix = [0:cnt_x]) {
+		for (iy = [0 : cnt_y]) {
+			translate([ pin_spacing*ix + pin_spacing*(1-pin_hole_percent)*0.5,
+				    pin_spacing*iy + pin_spacing*(1-pin_hole_percent)*0.5 ])
+				cube([pin_spacing*pin_hole_percent, pin_spacing*pin_hole_percent, pin_length]);
+		}
+	}
+}
+
+difference() {
+	gridfinity(ux, uy, uz, lip=true, magnets=magnets, fill=false, bottom_height=pin_length);
+	translate(gf_inner_origin()) translate(gf_top_vec(0))
+		pins_negative(hc_max(gf_inner(ux)),hc_max(gf_inner(uy)));
+}
-- 
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