diff --git a/config.lua b/config.lua
index ebad9c3..e7d9000 100644
--- a/config.lua
+++ b/config.lua
@@ -3,9 +3,3 @@ Config = {
     gridOffset = 0,
     portWidth = 16
 }
-
-Color = {
-    input = { 0.8, 0.3, 0.3, 1 },
-    output = { 0.3, 0.3, 0.8, 1 },
-    mechanism = { 0.8, 0.8, 0.8, 1 }
-}
diff --git a/selector.lua b/selector.lua
index bc77724..e55713c 100644
--- a/selector.lua
+++ b/selector.lua
@@ -11,18 +11,7 @@ local mecha2 = Mechanism:new( GridPoint:new(10, 5), GridPoint:new(2, 2), { port1
 
 local mecha3 = Mechanism:new( GridPoint:new(13, 5), GridPoint:new(2, 1), { port1:clone(), port2:clone(), port5:clone() }, {1, 0.5, 0.5, 1} )
 
-local conveyorPortI1 = Port:new( GridPoint:new(-1, 0), PortRotation.left, Color.input )
-local conveyorPortI2 = Port:new( GridPoint:new(0, -1), PortRotation.up, Color.input )
-local conveyorPortI3 = Port:new( GridPoint:new(0, 1), PortRotation.down, Color.input )
-local conveyorPortO = Port:new( GridPoint:new(1, 0), PortRotation.right, Color.output )
-local conveyorMecha = Mechanism:new( GridPoint:new(0, 0), GridPoint:new(1, 1), {
-    conveyorPortI1:clone(),
-    conveyorPortI2:clone(),
-    conveyorPortI3:clone(),
-    conveyorPortO:clone()
-}, Color.mechanism )
-
-local mechs = { conveyorMecha, mecha2, mecha3 }
+local mechs = { mecha1, mecha2, mecha3 }
 local actions = { 'none', 'first', 'second', 'third' }
 
 local selected = 0
diff --git a/timer.lua b/timer.lua
deleted file mode 100644
index 7fa4f01..0000000
--- a/timer.lua
+++ /dev/null
@@ -1,78 +0,0 @@
-local function defaultTimeout() end
-
----@class Timer
----@field duration number
----@field time number
----@field oneShot boolean
----@field timeout function
----@field data table
----@field paused boolean
-Timer = {
-    duration = 1,
-    time = 1,
-    oneShot = false,
-    timeout = defaultTimeout,
-    data = {},
-    paused = true
-}
-
----@param duration number|nil
----@param oneShot boolean|nil
----@param timeout function|nil
----@param data table|nil
----@return Timer
-function Timer:new( duration, oneShot, timeout, data )
-    local timer = {
-        duration = duration or self.duration,
-        time = duration or self.duration,
-        oneShot = oneShot or self.oneShot,
-        timeout = timeout or self.timeout,
-        data = data or self.data,
-        paused = self.paused,
-    }
-    setmetatable( timer, { __index = self } )
-
-    return timer
-end
-
----@param dt number
-function Timer:tick( dt )
-    if self.paused then
-        return
-    end
-
-    self.time = self.time - dt
-
-    if self.time <= 0 then
-        self.timeout( self.data )
-
-        if self.oneShot then
-            self.paused = true
-            self.time = 0
-        else
-            self.time = self.duration + self.time
-        end
-    end
-end
-
----@param duration number|nil
-function Timer:start( duration )
-    self.paused = false
-    if duration ~= nil then
-        self.duration = duration
-    end
-    self.time = self.duration
-end
-
----@param emit boolean
-function Timer:stop( emit )
-    self.paused = true
-    self.time = 0
-    if emit then
-        self.timeout( self.data )
-    end
-end
-
-function Timer:elapsed()
-    return self.duration - self.time
-end