diff --git a/gallery/ArduinoThermostat.png b/gallery/ArduinoThermostat.png
index aabd9e5..67578ad 100644
Binary files a/gallery/ArduinoThermostat.png and b/gallery/ArduinoThermostat.png differ
diff --git a/gallery/Laser_load.png b/gallery/Laser_load.png
index ad6f0a7..1278f15 100644
Binary files a/gallery/Laser_load.png and b/gallery/Laser_load.png differ
diff --git a/gallery/Mains_Box.png b/gallery/Mains_Box.png
index d6d9300..b35686b 100644
Binary files a/gallery/Mains_Box.png and b/gallery/Mains_Box.png differ
diff --git a/gallery/Variac.png b/gallery/Variac.png
index dd073a9..473ad29 100644
Binary files a/gallery/Variac.png and b/gallery/Variac.png differ
diff --git a/scripts/gallery.py b/scripts/gallery.py
index 96faadb..b3b1cec 100644
--- a/scripts/gallery.py
+++ b/scripts/gallery.py
@@ -29,12 +29,13 @@ from tests import do_cmd
 import re
 from shutil import copyfile
 from tests import update_image
+import sys
 
 project_dir = '../..'
 target_dir = 'gallery'
 output_name = target_dir + '/readme.md'
 
-def gallery():
+def gallery(force):
     if not os.path.isdir(target_dir):
         os.makedirs(target_dir)
 
@@ -45,6 +46,8 @@ def gallery():
             path = project_dir + '/' + project
             print(project)
             document = path + '/readme.md'
+            if force:
+                os.system('cd %s && make_all' % path)
             if os.path.isfile(document):
                 with open(document, 'rt') as readme:
                     for line in readme.readlines():
@@ -74,4 +77,4 @@ def gallery():
 
 if __name__ == '__main__':
     init()
-    gallery()
+    gallery(force = len(sys.argv) > 1 and sys.argv[1] == '-f')
diff --git a/scripts/render.py b/scripts/render.py
index 6b065d1..236957f 100644
--- a/scripts/render.py
+++ b/scripts/render.py
@@ -24,7 +24,7 @@ from set_config import *
 from exports import bom_to_parts
 import os
 import openscad
-from tests import do_cmd
+from tests import do_cmd, update_image
 from deps import mtime
 
 def render(target, type):
@@ -59,8 +59,10 @@ def render(target, type):
                 f.write('color("lime") import("%s");\n' % part_file)
             cam = "--camera=0,0,0,70,0,315,500" if type == 'stl' else "--camera=0,0,0,0,0,0,500"
             render = "--preview" if type == 'stl' else "--render"
-            openscad.run("--projection=p", "--imgsize=4096,4096", cam, render, "--autocenter", "--viewall", "-o", png_name, png_maker_name);
-            do_cmd(("magick "+ png_name + " -trim -resize 280x280 -background #ffffe5 -gravity Center -extent 280x280 -bordercolor #ffffe5 -border 10 " + png_name).split())
+            tmp_name = 'tmp.png'
+            openscad.run("--projection=p", "--imgsize=4096,4096", cam, render, "--autocenter", "--viewall", "-o", tmp_name, png_maker_name);
+            do_cmd(("magick "+ tmp_name + " -trim -resize 280x280 -background #ffffe5 -gravity Center -extent 280x280 -bordercolor #ffffe5 -border 10 " + tmp_name).split())
+            update_image(tmp_name, png_name)
             os.remove(png_maker_name)
 
 if __name__ == '__main__':