PCB Etcher

function getPcbFromChest()
   turtle.select(1)
   if turtle.suck() then
      turtle.transferTo(2,1)
   end
end


function newPcb( )
   if turtle.getItemCount(2) > 0 then
      turtle.select(2)
      turtle.dropDown(1)
      turtle.select(1)
   end
end

while true do
   turtle.select(1)
   if turtle.getItemCount(2) == 0 then
      getPcbFromChest()
   end
   if turtle.suckDown() then
      if turtle.compareTo(16) then
         turtle.dropUp(1)
         newPcb()
      else
         turtle.dropDown(1)
      end
   else
      newPcb()
   end
   sleep(60)
end