Machine Master is a Manga/Manhwa/Manhua in english language, Manhua series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

During the tribulation, a supreme ruler is accidentally reincarnated. In the backyard herb garden of his family, he found the remains of modern civilization, missiles, mechs, and airships that appeared in the Xuanhuan continent. In this life, he intends to use the means of technological civilization to break the cycle of reincarnation.