diff --git a/maidroid_tool/core_writer.lua b/maidroid_tool/core_writer.lua
index 1edf151..404fc24 100644
--- a/maidroid_tool/core_writer.lua
+++ b/maidroid_tool/core_writer.lua
@@ -4,8 +4,42 @@
 ------------------------------------------------------------
 
 -- register a definition of a core writer.
-minetest.register_node("maidroid_tool:core_writer", {
-	drawtype        = "nodebox",
-	tiles           = {},
+(function()
+	local node_box = {
+		type = "fixed",
+		fixed = {
+			{-0.4375,   -0.25, -0.4375,  0.4375,  0.1875,  0.4375},
+			{ 0.1875,  0.3125,  0.0625,  0.4375,   0.375,   0.125},
+			{ -0.375,  0.1875,  -0.375,   0.375,    0.25,   0.375},
+			{-0.0625,    -0.5, -0.0625,  0.0625,   0.375,  0.0625},
+			{  0.375,  0.1875,  0.0625,  0.4375,   0.375,   0.125},
+			{ -0.375,    -0.5,  -0.375,   0.375,   -0.25,   0.375},
+		},
+	}
 
-})
+	local tiles = {
+		"maidroid_tool_core_writer_top.png",
+		"maidroid_tool_core_writer_bottom.png",
+		"maidroid_tool_core_writer_right.png",
+		"maidroid_tool_core_writer_right.png^[transformFX",
+		"maidroid_tool_core_writer_front.png^[transformFX",
+		"maidroid_tool_core_writer_front.png",
+	}
+
+	minetest.register_node("maidroid_tool:core_writer", {
+		description        = "maidroid tool : core writer",
+		drawtype           = "nodebox",
+		paramtype          = "light",
+		paramtype2         = "facedir",
+		groups             = {cracky = 2},
+		is_ground_content  = false,
+		sounds             = default.node_sound_stone_defaults(),
+		node_box           = node_box,
+		tiles              = tiles,
+	})
+end) ()
+
+-- register a definition of a core entity.
+(function()
+
+end) ()
diff --git a/maidroid_tool/depends.txt b/maidroid_tool/depends.txt
new file mode 100644
index 0000000..4ad96d5
--- /dev/null
+++ b/maidroid_tool/depends.txt
@@ -0,0 +1 @@
+default
diff --git a/maidroid_tool/init.lua b/maidroid_tool/init.lua
index d9fa7bf..a304258 100644
--- a/maidroid_tool/init.lua
+++ b/maidroid_tool/init.lua
@@ -7,3 +7,5 @@ maidroid_tool = {}
 
 maidroid_tool.modname = "maidroid_tool"
 maidroid_tool.modpath = minetest.get_modpath(maidroid_tool.modname)
+
+dofile(maidroid_tool.modpath .. "/core_writer.lua")
diff --git a/maidroid_tool/textures/maidroid_tool_core_writer_bottom.png b/maidroid_tool/textures/maidroid_tool_core_writer_bottom.png
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index 0000000..df552d6
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diff --git a/maidroid_tool/textures/maidroid_tool_core_writer_bottom.xcf b/maidroid_tool/textures/maidroid_tool_core_writer_bottom.xcf
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diff --git a/maidroid_tool/textures/maidroid_tool_core_writer_front.png b/maidroid_tool/textures/maidroid_tool_core_writer_front.png
new file mode 100644
index 0000000..dd843a1
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diff --git a/maidroid_tool/textures/maidroid_tool_core_writer_front.xcf b/maidroid_tool/textures/maidroid_tool_core_writer_front.xcf
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index 0000000..3d72e8d
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diff --git a/maidroid_tool/textures/maidroid_tool_core_writer_right.png b/maidroid_tool/textures/maidroid_tool_core_writer_right.png
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index 0000000..6629698
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diff --git a/maidroid_tool/textures/maidroid_tool_core_writer_right.xcf b/maidroid_tool/textures/maidroid_tool_core_writer_right.xcf
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index 0000000..d7306b7
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diff --git a/maidroid_tool/textures/maidroid_tool_core_writer_top.png b/maidroid_tool/textures/maidroid_tool_core_writer_top.png
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index 0000000..7f55240
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diff --git a/maidroid_tool/textures/maidroid_tool_core_writer_top.xcf b/maidroid_tool/textures/maidroid_tool_core_writer_top.xcf
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