The 3D printer on the international space station made the first 3D- NASA says printed objects in space this week. The machine prints a replacement part for itself, a \"history\" step that can change the way the exploration task receives the required hardware. \"This is actually a historic moment,\" NikiWerkheiser, project manager for the3d3d printer, said in a NASA YouTube video. \"Since the beginning of the human space program, we have been completely dependent on everything we need to launch from Earth to space. . . I think we are making history, and this is the first time ever that we can create what we need in space. \"How does 3D printing work? Photo gallery: according to NASA\'s website, 3D printing objects show where to find cool things for 3D printing. The ISS 3D printer creates a template for its first printing work. Werkheiser said the team chose this section for the first print because if the astronaut would rely on it to \"make spare parts and replace parts for critical parts\" the machine would need to be able to print the items in spare parts space on its own \"If the printer is critical to the Explorer, it must be able to copy its own parts so that it can continue to work on long trips to places like Mars or asteroids. Eventually, one printer can even print another one day. Weightlessness may affect 3d. Last week, NASA astronaut Barry Wilmore, commander of the International Space Station, installed the printer. The printer heats the plastic filaments and makes objects layer by layer at a time. Wilmore conducted two calibration test prints between November. 17 and 20 to make sure the printer is ready to print the first part. The ground controller sent an order to the printer on November to process spare parts. 24. The next day, wilmore removed the panel from the printer tray for inspection. When Wilmore removed the object from the printer tray, the adhesion was stronger than the astronaut expected. According to these findings, when astronauts print more objects, they will examine whether the binding is different under weightlessness conditions. \"When we print more parts, we will be able to understand whether some of the effects we see are caused by weightlessness or are only part of the normal fine -- \"The tuning process of printing,\" Wilmoretold NASA. The team is now conducting another calibration test because the printer needs to align exactly for each copy of the print. After the third calibration test, the team will be able to try printing another spare part in 3D. 3D prints will arrive on Earth in 2015, where scientists will compare them with the same ground-controlled samples. \"When we put the parts back on Earth, we will be able to do a more detailed analysis to find out how they compare to the parts printed on Earth,\" Wilmore said . \". Using a 3D printer on the ISS \"is a transformative moment in space development,\" said Space Manufacturing CEO Aaron Kemmer, who worked with NASA to create a 3D printer in use. \"This could change the way we provide replacement tools and parts to space station staff, enabling them to reduce their reliance on supply missions from Earth. \"On mobile?