Jelwek is a Poland-based 3D printer company. According to 3Dprint.com, Jelwek is "based around making 3D printers for independent and creative makers and designers so that they could not only be inspired and come forth with a variety of concepts, but also bring them to fruition with quality and affordability". In April 2015, the company announced that they would be making "significant changes" to their Prusa i3 and i3 Prusa Jelwek XL printers.
- Poland’s Jelwek Makes Changes to Prusa i3 & i3 Prusa Jelwek XL, Unveils MARK 23 3D Printer by Bridget Butler Millsaps (April 6, 2015), 3Dprint.com. Retrieved April 9, 2015.