diff --git a/.gitignore b/.gitignore
index 5eba201..49ef617 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 *.png
 *.scad
 *.blend1
+*.stl
 # Created by https://www.gitignore.io/api/lua,git
 # Edit at https://www.gitignore.io/?templates=lua,git