diff --git a/3d-printing/files/info.md b/3d-printing/files/info.md
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+++ b/3d-printing/files/info.md
@@ -0,0 +1,2 @@
+# files are written in open scad 
+therfore here exist source and builded stl files here.
\ No newline at end of file
diff --git a/3d-printing/files/stl/lampe_down_block.stl b/3d-printing/files/stl/lampe_down_block.stl
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index 0000000..41586ab
Binary files /dev/null and b/3d-printing/files/stl/lampe_down_block.stl differ