diff --git a/quarry.lua b/quarry.lua
index 5257622..37f6bad 100644
--- a/quarry.lua
+++ b/quarry.lua
@@ -105,7 +105,8 @@ local function dig(checkRefuel)
 end
 
 local function line(length, turn, checkRefuel)
-  for i=1,length do
+  turtle.digDown()
+  for i=2,length do
     dig(checkRefuel)
   end
   turn()
@@ -114,13 +115,15 @@ end
 local function panel(width, length, leftFirst, checkRefuel, checkFullInv)
   Logger:trace("Panel:", width, length)
   local turn, otherTurn = leftFirst and turtle.turnLeft or turtle.turnRight, leftFirst and turtle.turnRight or turtle.turnLeft
-  for i=1,width do
+  for i=2,width do
     checkFullInv()
     line(length, turn, checkRefuel)
     dig(checkRefuel)
     turn()
     turn, otherTurn = otherTurn, turn
   end
+  line(length, turn, checkRefuel)
+  turn()
 end
 
 local function rectPrism(depth, width, length, leftFirst)