diff --git a/src/conf_defaults.lua b/src/conf_defaults.lua
index 9e3ee04..ecea2f0 100644
--- a/src/conf_defaults.lua
+++ b/src/conf_defaults.lua
@@ -126,6 +126,8 @@ 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 = '',
diff --git a/src/util/printer.lua b/src/util/printer.lua
index 7b3469f..a0787e1 100644
--- a/src/util/printer.lua
+++ b/src/util/printer.lua
@@ -45,6 +45,8 @@ local SUPPORTED_PRINTERS = {
 	tantillus = "Tantillus",
 	vision_3d_printer = "Vision 3D Printer",
 	minifactory = "miniFactory",
+	builder3d = "Builder 3D",
+	bigbuilder3d = "Big Builder 3D",
 	marlin_generic = "Generic Marlin Printer",
     makerbot_generic = "Generic Makerbot Printer"
 }