that's the s.l.a. printer uses a laser in a liquid plastic which reacts to u.v. light. down here we've got the laser which is directed upwards through this tank. belief that the synthetic resin then hardens. up here is the bill plated which the resin will then stick to. close the lid and off you go. you can download 3 d. printing blueprints or devise your own using special software the more elaborate the southland possibilities after the step of the body print is translated into machine code. machine slice a software code can then be transmitted to the printer using a regulator in the flash drive or. the pros of f.d.m. methods are that printing materials and maintenance are cheap. but cons are that surface textures can be rougher. and what you print won't be as sturdy and so not as durable as items made with s.l.a. . are the type. of the advantages of s.l.a. printing are smoother surfaces and sturdy builds one of the disadvantage is that this technology is quite expensive in terms of materials and maintenance so while 3 d. printing may look simple it does require a fan