RepRapPro is dedicated to open-source 3D printing, and all our products are – and always will be – open-source. We specialise in self-replicating RepRap 3D printers with many advanced features that are low cost. RepRap is an open-source self-copying 3D printer. You plug it into your computer and it will print plastic parts using your own designs or using designs you have downloaded from the web. It will also print all the plastic parts for another copy of itself for you.