diff --git a/scad/16mm_sprocketed_roller.scad b/scad/16mm_sprocketed_roller.scad
index 88b8b32..8db9376 100644
--- a/scad/16mm_sprocketed_roller.scad
+++ b/scad/16mm_sprocketed_roller.scad
@@ -1,5 +1,3 @@
-time = 0;
-
 SPROCKET_BASE_D = 19.05; //8 frames
 SPROCKET_BASE_H = 2.7;
 
diff --git a/scad/16mm_sprocketed_roller_var.scad b/scad/16mm_sprocketed_roller_var.scad
index befc8b3..babc1e9 100644
--- a/scad/16mm_sprocketed_roller_var.scad
+++ b/scad/16mm_sprocketed_roller_var.scad
@@ -1,5 +1,3 @@
-time = 0;
-
 $fn = 100;
 
 SPROCKET_BASE_D = 19.05; //8 frames
diff --git a/scad/contact_printer.scad b/scad/contact_printer.scad
index 32767bd..f291518 100644
--- a/scad/contact_printer.scad
+++ b/scad/contact_printer.scad
@@ -1,7 +1,7 @@
 include <16mm_sprocketed_roller_var.scad>
 include <./lamp.scad>;
 include <./box_laser.scad>
-include <./ready.scad>
+include <./common/common.scad>
 
 AT = 25.4 * 0.22;
 daylight_w = 92;
diff --git a/scad/contact_printer_dial.scad b/scad/contact_printer_dial.scad
index d8abd79..84c0d2c 100644
--- a/scad/contact_printer_dial.scad
+++ b/scad/contact_printer_dial.scad
@@ -1,4 +1,4 @@
-include <./ready.scad>
+include <./common/common.scad>
 
 in = 25.4;
 $fn = 100;
diff --git a/scad/lamp.scad b/scad/lamp.scad
index 8239a34..2d94335 100644
--- a/scad/lamp.scad
+++ b/scad/lamp.scad
@@ -1,6 +1,6 @@
 $fn = 80;
 
-include <./ready.scad>;
+include <./common/common.scad>;
 include <./16mm_sprocketed_roller_var.scad>;
 
 BRACE_L = 24;
diff --git a/scad/ready.scad b/scad/ready.scad
deleted file mode 100644
index fae48d2..0000000
--- a/scad/ready.scad
+++ /dev/null
@@ -1,226 +0,0 @@
-//!OpenSCAD
-/* preprocessor */
-
-module tube(o = 1, i = 0, h = 1, center = false, $fn = 12) {
-	$fn = $fn;
-	union () {
-		difference () {
-			cylinder(r = o, h = h, center = center);
-			cylinder(r = i,  h = h, center = center);
-		}
-	}
-}
-
-module rounded_cube (cube_arr = [1, 1, 1], d = 0, center = false) {
-	off_x = 0;
-	off_y = 0;
-	r = d/2;
-	union () {
-		cube([cube_arr[0] - d, cube_arr[1], cube_arr[2]], center = center);
-		cube([cube_arr[0], cube_arr[1] - d, cube_arr[2]], center = center);
-		translate ([1 * (cube_arr[0] / 2) - r , 1 * (cube_arr[1] / 2)- r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
-		translate ([-1 * (cube_arr[0] / 2) + r, -1 * (cube_arr[1] / 2) + r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
-		translate ([1 * (cube_arr[0] / 2) - r, -1 * (cube_arr[1] / 2) + r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
-		translate ([-1 * (cube_arr[0] / 2) + r, 1 * (cube_arr[1] / 2)- r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
-	}
-}
-
-/*rounded_cube mikowski - avoid on web for triangulation errors\
-NOT READY FOR PRIMETIME
-module round_cube_minkowski (c = [1, 1, 1], diameter = 1) {
-	minkowski() {
-		cube([c[0] - diameter, c[1] - diameter, diameter(c[2])], center = true);
-		cylinder(r = diameter(diameter), h = c[2] / 2, center = true);
-	}
-}
-*/
-
-module c_battery () {
-	/* C Cell battery, 26.1 × 50 */
-	x = 26.1;
-	x_fuzz = .3;
-	y = 50;
-	y_fuzz = 2;
-	cylinder(r = (x + x_fuzz) / 2, h = y + y_fuzz, center = true);
-}
-
-module sub_c_battery () {
-	/* Sub C Cell battery, 22.2 × 42.9 */
-	x = 22.2;
-	x_fuzz = .3;
-	y = 42.9;
-	y_fuzz = 2;
-	cylinder(r = (x + x_fuzz) / 2, h = y + y_fuzz, center = true);
-}
-
-module hex (r = 1, h = 1, center = false) {
-	cylinder(r = r, h = h, center = center, $fn = 6);
-}
-
-module triangle (a = 1, b = 1, c = 1, h = 1, center = false) {
-	
-}
-
-module cone_45 (d = 1, center = false) {
-	cylinder(r1 = d/2, r2 = 0, h = d, center = center);
-}
-
-module decoys (d = 10, z = 0, number = 4, cube_size = 4, debug = false) {
-        for (i = [0: number]) {
-            rotate([0, 0, (360/number) * i]) translate([d, 0, z]) cube([cube_size, cube_size, cube_size], center = true);
-            if (debug && i == 0) {
-                rotate([0, 0, (360/number) * i]) translate([d, 0, z]) cube([cube_size * 5, cube_size* 5, cube_size], center = true);
-            }
-        }
-}
-
-//////////////////////////////////////////////////////////////////////////////////////////////
-// Paraboloid module for OpenScad
-//
-// Copyright (C) 2013  Lochner, Juergen
-// http://www.thingiverse.com/Ablapo/designs
-//
-// This program is free software. It is 
-// licensed under the Attribution - Creative Commons license.
-// http://creativecommons.org/licenses/by/3.0/
-//////////////////////////////////////////////////////////////////////////////////////////////
-
-module paraboloid (y=10, f=5, rfa=0, fc=1, detail=44){
-	// y = height of paraboloid
-	// f = focus distance 
-	// fc : 1 = center paraboloid in focus point(x=0, y=f); 0 = center paraboloid on top (x=0, y=0)
-	// rfa = radius of the focus area : 0 = point focus
-	// detail = $fn of cone
-
-	hi = (y+2*f)/sqrt(2); // height and radius of the cone -> alpha = 45° -> sin(45°)=1/sqrt(2)
-	x =2*f*sqrt(y/f); // x  = half size of parabola
-	
-   translate([0,0,-f*fc]) // center on focus 
-	rotate_extrude(convexity = 10,$fn=detail ) // extrude paraboild
-	translate([rfa,0,0]) // translate for fokus area	 
-	difference(){
-		union(){ // adding square for focal area
-			projection(cut = true) // reduce from 3D cone to 2D parabola
-				translate([0,0,f*2]) rotate([45,0,0]) // rotate cone 45° and translate for cutting
-				translate([0,0,-hi/2])cylinder(h= hi, r1=hi, r2=0, center=true, $fn=detail); // center cone on tip
-			translate([-(rfa+x ),0]) square ([rfa+x , y ]); // focal area square
-		}
-		translate([-(2*rfa+x ), -1/2]) square ([rfa+x ,y +1] ); 					// cut of half at rotation center 
-	}
-}
-
-//Spiral Notes
-//-------------------------------------------------------------------
-//Height = center to center height of the end spheres which form the spirals.  Ends will need to be flattened by the user as desired.  Actual height of the rendering is Height+2*baseRadius
-//Radius = the maximum distance from the axis of the spiral (the z axis) to the center of the sphere(s) forming the spiral
-//baseRadius = cross sectional radius of the spiral
-//frequency = the number of complete revolutions about the axis made by the spiral, whole numbers will result in spirals whose tops end directly above their bases
-//resolution = integer number of spheres, not to be confused with $fn.  The greater the number of spheres, the smoother the spiral will be (also longer render times!).  Recommended that this number be 8*frequency or greater.
-//numSpirals = integer number of spirals used in the spiralMulti modules spaced evenly around the axis (3 spirals are spaced 120 degrees apart, 4 spirals: 90 degrees apart, etc.) 
-
-//Instructions
-//------------------------------------------------------------------
-//1. Place spiral.scad in the "libraries" folder of your openscad installation.  Find the libraries folder by File -> Show Library Folder...
-//2. Then create a new or open one of your existing scad files and include spiral.scad with the following code:  
-//use<spiral.scad>;
-//3. Then call the modules in your files with code similar to the following:
-//spiral(20,20,3,1,25);
-//spiralCone(20,20,3,1,25);
-//spiralEllipse(20,20,3,1,25);
-//spiralMulti(20,20,3,1,25,3);
-//spiralMultiCone(20,20,3,1,25,3);
-//spiralMultiEllipse(40,60,3,1,32,3);
-
-//-------------------------------------------------------------
-//simple spiral
-module spiral (height = 20, Radius = 20, baseRadius = 3, frequency = 1, resolution = 25, $fn=50) {
-	union(){
-		translate ([0,0,-(height/2)]) {
-				for(i=[0:resolution-2]){
-					hull(){
-						rotate ([0,0,frequency*360/(resolution-1)*i]) translate ([Radius,0,i*height/(resolution-1)]) sphere(r=baseRadius, center=true);
-						rotate ([0,0,frequency*360/(resolution-1)*(i+1)]) translate ([Radius,0,(i+1)*height/(resolution-1)]) sphere(r=baseRadius,center=true);
-					}
-				}
-		}
-	}
-}
-
-//cone spiral
-module spiralCone(height=20,Radius=20,baseRadius=3,frequency=1,resolution=25, $fn=50) {
-	union(){
-		translate ([0,0,-(height/2)]) {
-				for(i=[0:resolution-2]){
-					hull(){
-						rotate ([0,0,frequency*360/(resolution-1)*i]) translate ([Radius-(i-1)*Radius/resolution,0,i*height/(resolution-1)]) sphere(r=baseRadius, center=true);
-						rotate ([0,0,frequency*360/(resolution-1)*(i+1)]) translate ([Radius-i*Radius/resolution,0,(i+1)*height/(resolution-1)]) sphere(r=baseRadius,center=true);
-					}
-				}
-		}
-	}
-}
-
-//ellipse spiral
-module spiralEllipse(height=20,Radius=20,baseRadius=3,frequency=1,resolution=25, $fn=50) {
-	union(){
-		translate ([0,0,-(height/2)]) {
-				for(i=[0:resolution-2]){
-					hull(){
-						rotate ([0,0,frequency*360/(resolution-1)*i]) translate ([Radius*sqrt(1-(i/(resolution-1)*(i/(resolution-1)))),0,i*height/(resolution-1)]) sphere(r=baseRadius, center=true);
-						rotate ([0,0,frequency*360/(resolution-1)*(i+1)]) translate ([Radius*sqrt(1-((i+1)/(resolution-1)*((i+1)/(resolution-1)))),0,(i+1)*height/(resolution-1)]) sphere(r=baseRadius,center=true);
-					}
-				}
-		}
-	}
-}
-
-// Multiple spirals arranged radially around the axis
-module spiralMulti(height=20,Radius=20,baseRadius=3,frequency=1,resolution=25,numSpirals=3,$fn=50) {
-	shiftAngle=360/numSpirals;
-	for(total=[0:numSpirals-1]) {
-		union(){
-		translate ([0,0,-(height/2)]) {
-					for(i=[0:resolution-2]){
-						hull(){
-							rotate ([0,0,frequency*360/(resolution-1)*i+shiftAngle*total]) translate ([Radius,0,i*height/(resolution-1)]) sphere(r=baseRadius, center=true);
-							rotate ([0,0,frequency*360/(resolution-1)*(i+1)+shiftAngle*total]) translate ([Radius,0,(i+1)*height/(resolution-1)]) sphere(r=baseRadius,center=true);
-						}
-					}
-			}
-		}
-	}
-}
-
-// Multiple spirals arranged radially around the axis tapering in towards the axis
-module spiralMultiCone(height=20,Radius=20,baseRadius=3,frequency=1,resolution=25,numSpirals=3,$fn=50) {
-	shiftAngle=360/numSpirals;
-	for(total=[0:numSpirals-1]) {
-		union(){
-			translate ([0,0,-(height/2)]) {
-					for(i=[0:resolution-2]){
-						hull(){
-							rotate ([0,0,frequency*360/(resolution-1)*i+shiftAngle*total]) translate ([Radius-(i-1)*Radius/resolution,0,i*height/(resolution-1)]) sphere(r=baseRadius, center=true);
-							rotate ([0,0,frequency*360/(resolution-1)*(i+1)+shiftAngle*total]) translate ([Radius-i*Radius/resolution,0,(i+1)*height/(resolution-1)]) sphere(r=baseRadius,center=true);
-						}
-					}
-			}
-		}
-	}
-}
-
-//multiple ellipse spiral
-module spiralMultiEllipse(height=20,Radius=20,baseRadius=3,frequency=1,resolution=25,numSpirals=3,$fn=50) {
-	shiftAngle=360/numSpirals;
-	for(total=[0:numSpirals-1]) {
-		union(){
-			translate ([0,0,-(height/2)]) {
-					for(i=[0:resolution-2]){
-						hull(){
-							rotate ([0,0,frequency*360/(resolution-1)*i+shiftAngle*total]) translate ([Radius*sqrt(1-(i/(resolution-1)*(i/(resolution-1)))),0,i*height/(resolution-1)]) sphere(r=baseRadius, center=true);
-							rotate ([0,0,frequency*360/(resolution-1)*(i+1)+shiftAngle*total]) translate ([Radius*sqrt(1-((i+1)/(resolution-1)*((i+1)/(resolution-1)))),0,(i+1)*height/(resolution-1)]) sphere(r=baseRadius,center=true);
-						}
-					}
-			}
-		}
-	}
-}
\ No newline at end of file