diff --git a/scad/vitamins/stepper-motors.scad b/scad/vitamins/stepper-motors.scad
index 7257e61..060d61a 100644
--- a/scad/vitamins/stepper-motors.scad
+++ b/scad/vitamins/stepper-motors.scad
@@ -13,6 +13,7 @@
 NEMA17  = [42.3, 47,     53.6/2, 25,     11,     2,     5,     24,     31 ];
 NEMA17S = [42.3, 34,     53.6/2, 25,     11,     2,     5,     24,     31 ];
 NEMA14  = [35.2, 36,     46.4/2, 21,     11,     2,     5,     21,     26 ];
+NEMA23  = [56.4, 51.2,   75.7/2, 28.2,   38.1/2, 1.6,   6.35,  24,     47.1 ];
 
 function NEMA_width(motor)    =    motor[0];
 function NEMA_length(motor)      = motor[1];