text: A movie enthusiast has built his very own Iron Man suit for a heroic price of just £55. Chinese engineering graduate Cheng Chen, 27, was inspired to make the iconic body armour after watching the  hit film with his younger brother. He spent six months painstakingly researching and building the replica to the movie's exact measurements, it was reported by People's Daily Online. The finished product is two metres high, weighs just 4kg and comes complete with helmet, laser gloves and a power backpack. But Cheng said he was was too  'chubby' to fit into it and had to ask his nephew to model it for him. Heroic effort: Cheng Chen poses with the Iron Man suit he built after six months of painstaking research. It is being modelled here by his nephew because he found he was 'too chubby' to fit into it himself . The finished product is two metres high, weighs just 4kg and comes with helmet, gloves and backpack . Cheng, from Jiangsu Province in eastern China, said: 'I studied electronic engineering at university. 'Because I have always been single, I have a lot of time in my hands. The idea of constructing an Iron Man armour then came to mind. 'I love the movie. Even my brother, now in Year 6, loves it. My initial idea was to make one for my little brother.' He was driven to start his research when his younger brother begged him to build one after they watched the latest installment of the series in the cinema last year. Construction was harder than Cheng expected. He started looking for a blueprint for the armour  last autumn. Cheng spent six months painstakingly researching and building the replica to the move's measurements . To cut the cost, Cheng used plastic instead of metal which he bought for just 5 Yuan (60p) per square metre . He said: 'I got all my information from the internet. I started from scratch. I go online for any questions. If I can't find the answer, I post my question on online forums. 'Through searching online for information, I am able to learn and exchange experiences with other Iron Man fans. It is a little by little process.' To cut the cost, Cheng used plastic instead of metal which he bought for just 5 Yuan (60p) per square metre. He bought 20 square metres in total and cut them into 13 parts, including the helmet, mask, chest and limb protectors. Cheng bought 20 square metres of plastic in total which he cut them into 13 parts, including the helmet, mask, chest and limb protectors . Oversight: Even his nephew can only sit down when wearing it because his legs are too short for the suit . He then stuck them together and coated them with metallic red and gold paint. He even installed LED lights in the eyes and hands to give a truly authentic feel. But he says the electromagnet in Iron Man's chest is still a work in progress. Frustratingly, Cheng says he can't fit into it himself because he is 'too chubby' so he asked his nephew to act as his model. But even his nephew can only sit down when wearing it because his legs are not long enough for the suit. His younger brother also couldn't wait to try on the helmet and showed it off to his friends, saying: 'This is so cool!'. The real thing: Iron Man, played by Robert Downey Junior, shows off his Mark III armour in the 2008 film .
target: Cheng Chen inspired to make suit after watching film with younger brother .
  To cut cost, he used plastic instead of metal at a price of just 60p per sqm .
  Weighs just 4kg and comes with helmet, laser gloves and power backpack .