Ha ha , To saw wood is experience .I am an ex-student of npust department of wood industry and have been sawing wood for few years ,what you say to saw wood in a straight line for about 90 degree is a very difficult task , we human are not machine , but fortunately machine are created by us .So if you need any wood work for me to help I am there to help you 24 hrs service . But we should thank ph 84 which is a good place for us to keep our aquarium .