diff --git a/scad.sh b/scad.sh
index 6802ed1..448402c 100644
--- a/scad.sh
+++ b/scad.sh
@@ -6,17 +6,17 @@ NAME="${FILENAME%.*}"
 THEME=DeepOcean
 
 function generateStl () {
-	echo openscad -enable manifold -D VERBOSE=false -D PART=\"${2}\" --export-format=asciistl -o "stl/${NAME}_${2}.stl" "${1}"
+	openscad --enable manifold -D VERBOSE=false -D PART=\"${2}\" --export-format=asciistl -o "stl/${NAME}_${2}.stl" "${1}"
 }
 
 function sortStl () {
-	echo python3 scad/common/c14n_stl.py "stl/${NAME}_${1}.stl"
+	python3 scad/common/c14n_stl.py "stl/${NAME}_${1}.stl"
 }
 
 function generateJpeg () {
-	echo openscad --enable manifold --viewall --render --imgsize=512,512 --colorscheme=${THEME} -o "img/${NAME}_${2}.png" "${1}"
-	echo convert "img/${NAME}_${2}.png" -sampling-factor 4:2:0 -strip -quality 85 -interlace JPEG -colorspace RGB "img/${NAME}_${2}.jpg"
-	echo rm -f "img/${NAME}_${2}.png"
+	openscad --enable manifold --viewall --render --imgsize=512,512 --colorscheme=${THEME} -o "img/${NAME}_${2}.png" "${1}"
+	convert "img/${NAME}_${2}.png" -sampling-factor 4:2:0 -strip -quality 85 -interlace JPEG -colorspace RGB "img/${NAME}_${2}.jpg"
+	rm -f "img/${NAME}_${2}.png"
 }
 
 function generateScad () {
@@ -27,16 +27,19 @@ function generateScad () {
 
 function getParts () {
 	tmpFile=$(mktemp)
-	cat "${SRC}" | grep "PART ==" | awk -F'==' '{print $2}' | awk -F'"' '{print $2}' | awk -F'"' '{print $1}' | sort > models.txt
+	cat "${SRC}" | grep "PART ==" | awk -F'==' '{print $2}' | awk -F'"' '{print $2}' | awk -F'"' '{print $1}' | sort > "${tmpFile}"
 	echo "${tmpFile}"
 }
 
 if [[ -z "${2}" ]]; then
+	echo "Generate all parts in ${SRC}..."
 	partsList=$(getParts)
 	while read part; do
+		echo "Generating ${part}..."
 		generateScad "${part}"
 	done < "${partsList}"
 else
+	echo "Generating ${2} in ${SRC}..."
 	generateScad "${2}"
 fi