diff --git a/src/conf_defaults.lua b/src/conf_defaults.lua
index ecea2f0..9e3ee04 100644
--- a/src/conf_defaults.lua
+++ b/src/conf_defaults.lua
@@ -126,8 +126,6 @@ M.printer_dimensions_y = {
 M.printer_dimensions_z = {
 	default = 200,
 	default_minifactory = 155,
-	default_builder3d = 400,
-	default_bigbuilder3d = 900,
 	subSection = 'printer_type',
 	type = 'int',
 	description = '',