Jens Schaller is a software developer, User Experience Specialist and content creator behind the channel "Der Druckt Schon Wieder". With more than 25 years of professional experience — from an apprenticeship in electrical engineering through software development to UX conception and project leadership — he today works as a User Experience Specialist at Qvest Digital AG in Bonn. His daily work: designing, testing and iteratively improving digital products from first concept to validated release. Alongside his day job, Jens runs the creator business "Der Druckt Schon Wieder" on YouTube, Instagram and TikTok. His approach is consistent: maker projects deserve the same structured thinking as professional products — and conversely, product development benefits when you think like a maker. Direct, honest, no buzzword bingo. Known in the 3D printing community for his unvarnished tutorials, filament tests and a relaxed but precise way of making complex topics explainable. Currently in development: his own app for print-cost calculation on UV printers, and his own shop at thismustbetheshop.com.