Fix various typos

3d_triangle.scad

@@ -18,9 +18,9 @@
 // ================================================================
 //
 //	File providing functions and modules to draw 3D - triangles 
-//	created in the X-Y plane with hight h, using various triangle 
+//	created in the X-Y plane with height h, using various triangle 
 //	specification methods. 
-//	Standard traingle geometrical definition  is used. Vertices are named A,B,C, 
+//	Standard triangle geometrical definition  is used. Vertices are named A,B,C, 
 //	side a is opposite vertex A a.s.o. the angle at vertex A is named alpha, 
 //	B(beta), C(gamma).
 //
@@ -41,7 +41,7 @@
 //		Enter triangle sides a,b,c and to get the A,B,C - corner
 // 		co-ordinates. The trinagle's c-side lies on the x-axis
 // 		and A-corner in the co-ordinates center [0,0,0]. Geometry rules
-//		required that a + b is greater then c.  The traingle's vertices are
+//		required that a + b is greater then c.  The triangle's vertices are
 //		computed such that it is located in the X-Y plane,  side c is on the 
 //		positive x-axis. 
 //	PARAMETER:
@@ -53,7 +53,7 @@
 //
 //	COMMENT:
 //		vertices = 3dtri_sides2coord (3,4,5);
-//		vertices[0] : Acord	vertex A cordinates the like [x,y,z] 
+//		vertices[0] : Acord	vertex A coordinates the like [x,y,z] 
 // -------------------------------------------------------------------------------------	
 //
 function 3dtri_sides2coord (a,b,c) = [
@@ -231,7 +231,7 @@ polyhedron (points=[Acord,Bcord,Ccord,
 //		Draw a round corner triangle with A,B,C - vertices specified by its 
 // 		co-ordinates, height h and round vertices having radius "r".
 //		As specified by the input parameters.
-//		Please note, the tringles side lenght gets extended by "2 * r",
+//		Please note, the tringles side length gets extended by "2 * r",
 //		and the vertices coordinates define the centers of the 
 //		circles with radius "r". 
 //	PARAMETER:

README.markdown

@@ -63,7 +63,7 @@ Very generally useful functions and constants:
 * constants.scad: mathematical constants
 * curves.scad: mathematical functions defining curves
 * units.scad: easy metric units
-* utilities.scad: geometric funtions and misc. useful stuff
+* utilities.scad: geometric functions and misc. useful stuff
 * teardrop.scad (http://www.thingiverse.com/thing:3457): parametric teardrop module
 * shapes.scad: DEPRECATED simple shapes by Catarina Mota
 * polyholes.scad: holes that should come out well when printed
@@ -96,7 +96,7 @@ External utils that generate and process openscad code:
 ## Development ##
 
 You are welcome to fork this project in github and request pulls. I will try to
-accomodate the community as much as possible in this. If for some reason you
+accommodate the community as much as possible in this. If for some reason you
 want collaborator access, just ask.
 
 Github is fun (and easy), but I can include code submissions and other

array.scad

@@ -38,41 +38,41 @@ module Cubic_and_Radial_Array_Test()
 			cylinder(h=10,r=.5,center=true);
 		}
 
-//a linear array allong x can be derived from the cubic array simply 
+//a linear array along x can be derived from the cubic array simply
 	translate([60,0,0])
    Cubic_Array(10,0,0,5,1,1,center=false)
 		{
 		cube([5,5,5],center=true);
-		} 
-//a linear array allong y can be derived from the cubic array simply 
+		}
+//a linear array along y can be derived from the cubic array simply
 	translate([0,60,0])
    Cubic_Array(0,10,0,1,5,1,center=false)
 		{
 		cube([5,5,5],center=true);
-		} 
+		}
 
-//a linear array allong z can be derived from the cubic array simply 
+//a linear array along z can be derived from the cubic array simply
 	translate([0,0,60])
    Cubic_Array(0,0,10,1,1,5,center=false)
 		{
 		cube([5,5,5],center=true);
-		} 
+		}
 
-//a grid  array allong x,y can be derived from the cubic array simply 
+//a grid array along x,y can be derived from the cubic array simply
 	translate([0,0,-60])
    Cubic_Array(10,10,0,5,5,1,center=true)
 		{
 		cube([5,5,5],center=true);
-		} 
+		}
 
-//radial array of 32 objects rotated though 10 degrees 
+//radial array of 32 objects rotated though 10 degrees
  	translate([0,0,0])
  	Radial_Array(10,32,40)
 		{
 		cube([2,4,6],center=true);
 		}
 
-// a radial array of linear arrays 
+// a radial array of linear arrays
 
  	rotate([45,45,45])
   	Radial_Array(10,36,40)

libtriangles.scad

@@ -1,6 +1,9 @@
 //Copyright (C) 2013 Alex Davies
 //License: LGPL 2.1 or later
-//todo, make library work with negative lengths by adding triangles to the inside of every surface. basicaly copy and paste the current triangles set and reverse the first and last digit of every triangle. In 4 character traingles switcht the middle ones around as well. Not sure if that' actually useful though.
+//todo, make library work with negative lengths by adding triangles to the inside of every surface.
+//      basically copy and paste the current triangles set and reverse the first and last digit of
+//      every triangle. In 4 character triangles switch the middle ones around as well.
+//      Not sure if that's actually useful though.
 
 module rightpyramid(rightpyramidx, rightpyramidy, rightpyramidz) {
 	polyhedron ( points = [[0,0,0], 

motors.scad

@@ -51,7 +51,7 @@ module _stepper_motor_mount(
 	bolt_hole_size,
 	bolt_hole_distance,
 	slide_distance = 0,
-	motor_length = 40, //arbitray - not standardized
+	motor_length = 40, //arbitrary - not standardized
 	mochup,
 	tolerance = 0
 )

servos.scad

@@ -59,7 +59,7 @@ module towerprosg90(position=undef, rotation=undef, screws = 0, axle_length = 0,
  * @param vector position The position vector
  * @param vector rotation The rotation vector
  * @param boolean screws If defined then "screws" will be added and when the module is differenced() from something if will have holes for the screws
- * @param number axle_lenght If defined this will draw "backgound" indicator for the main axle
+ * @param number axle_lenght If defined this will draw "background" indicator for the main axle
  */
 module alignds420(position, rotation, screws = 0, axle_lenght = 0)
 {