diff --git a/readme.md b/readme.md
index f03534b..befb759 100644
--- a/readme.md
+++ b/readme.md
@@ -903,7 +903,7 @@ Parametric green terminal blocks
 | ```gt_top(type)``` | Depth at the top |
 | ```gt_tube_h(type)``` | Height of optional tubes around the screws |
 | ```gt_y_offset(type)``` | Offset of the pins from centre of the depth |
-| ```gt_y_offset2(type)``` | Offset of the pins screws from the screws |
+| ```gt_y_offset2(type)``` | Offset of the pins from the screws |
 
 ### Modules
 | Module | Description |
@@ -2029,7 +2029,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 | ```d_plug(DCONN15, pcb = true)``` |  D-type 15 way PCB mount plug |
 |   1 | ```pcb(DuetE)``` |  Duet 2 Ethernet electronics |
 |   1 | ```pcb(Duex2)``` |  Duex2 expansion board |
-|   1 | ```pcb(Duex5)``` |  Duex5 expasnion board |
+|   1 | ```pcb(Duex5)``` |  Duex5 expansion board |
 |   1 | ```pcb(EnviroPlus)``` |  Enviro+ |
 |   1 | ```pcb(ExtruderPCB)``` |  Extruder connection PCB |
 |   1 | ```pcb(Keyes5p1)``` |  Keyes5.1 Arduino Uno expansion board |
diff --git a/vitamins/green_terminal.scad b/vitamins/green_terminal.scad
index f82615f..c4d3131 100644
--- a/vitamins/green_terminal.scad
+++ b/vitamins/green_terminal.scad
@@ -36,7 +36,7 @@ function gt_front_t(type)      = type[10];  //! Thickness of frame around the fr
 function gt_box_w(type)        = type[11];  //! Width inside the cable entry box
 function gt_box_h(type)        = type[12];  //! Height of the cable entry box
 function gt_y_offset(type)     = type[13];  //! Offset of the pins from centre of the depth
-function gt_y_offset2(type)    = type[14];  //! Offset of the pins screws from the screws
+function gt_y_offset2(type)    = type[14];  //! Offset of the pins from the screws
 function gt_tube_h(type)       = type[15];  //! Height of optional tubes around the screws
 
 module green_terminal(type, ways, skip = [], colour = "lime") { //! Draw green terminal blocks, skip can be used to remove pins.
diff --git a/vitamins/pcbs.scad b/vitamins/pcbs.scad
index 4af9b2a..6d39d3d 100644
--- a/vitamins/pcbs.scad
+++ b/vitamins/pcbs.scad
@@ -177,7 +177,7 @@ Duex2 = ["Duex2", "Duex2 expansion board",
                                                                     ],
                                                                     []];
 
-Duex5 = ["Duex5", "Duex5 expasnion board",
+Duex5 = ["Duex5", "Duex5 expansion board",
                                      123,   100,   1.6, 0,    4.2,  0, "#2140BE",  false, [[-4, 4], [-4, -4], [4, -4],[4, 4]],
                                                                    concat(Duex2[11], [
                                                                      [ 61.5, -81.2,   0, "chip", 10, 10, 2],