Update craftCrystal.lua

craftCrystal.lua

@@ -2,11 +2,18 @@ local robot = require("robot")
 local component = require("component")
 local sides = require("sides")
 local rs = component.redstone
+local flag = true;
 while true do
   if rs.getInput(sides.top) > 0 then
+    flag = true
     robot.suck()
     robot.dropDown()
   else
+    if flag then
+      os.sleep(5)
+    else
+      flag = false
+    end
     robot.suckDown()
     robot.drop()
   end