About us

Repetier.com is a project of

Hot-World GmbH & Co. KG
Knickelsdorf 42
47877 Willich

Support: Customer support
Mail: repetierdev@gmail.com (Business contacts, no customer support)
Tel: +49 (0) 2154 – 60 65 18 (No customer support, only business contacts)
Fax: +49 (0) 2154 – 60 65 19

Director: Marcus Littwin
Commercial Register: Amtsgericht Krefeld HRA 5325
Tax no. 102/5730/1205
Sales tax identification number: DE213748632

Personally liable partner: Hot World Media GmbH in Willich
Commercial Register: Amtsgericht Krefeld HRB 10800

About Repetier

Since 2011 we are absolute 3D printing enthusiasts and develop several software solutions for 3D printers. Our first printer was a RepRap Mendel. At that time no useful software was available, so we started to program Repetier-Firmware and Repetier-Host to achieve the best possible printing results. Later Repetier-Server was added to optimize the possibilities and get more flexibility.

Repetier started as a hobby and quickly became a full-time job, but until now it’s still a hobby – just a full-time hobby. For this reason, we develop Repetier with passion and continue improving. From this inner drive our success results in the 3D printer community and we are proud to have contributed a piece to the 3D printer hype.

Marcus Littwin 

Marcus Littwin
CEO of Hot-World GmbH & Co. KG

After high school he studied Mathematics, Physics and Sport at Heinrich-Heine-University in Düsseldorf. During his studies he started 1998 with his own IT company with his brother Roland, which is successful to this day.

Roland Littwin 

Dipl.-Ing. Roland Littwin
Head of Software Development

He studied civil engineering with focus on computer science in Bochum. After graduating he taught at Ruhr-University Bochum (Institute for Statics and Dynamics) and RWTH Aachen (Institute of Structural Concrete) where he developed finite element method (FEM) software.

He programs since over 30 years starting with Sinclair ZX81, Commodore C64/C128, Atari ST1024, … He programmed i.a. in C, C ++, C #, Objective-C, Java, CSS, Less, Sass, JavaScript, TypeScript, HTML, SML, SQL, PHP, Ruby, Perl, Bash, … Since 1998 he develops software solutions for Hot-World.


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