When I first saw the SLS4All project, it was immediately clear to me: I wanted a printer like that! However, since the kit wasn’t available at the time, I decided to build the project completely myself – without a kit, using only my own initiative and know-how.
I manufactured all the parts, plates, and aluminum profiles myself – mostly using my own CNC machine, which I also built myself. The necessary 3D-printed parts for the assembly came from my Bambu Lab X1C and were made of ASA-CF, which proved to be an ideal choice in terms of heat resistance and stability.
The assembly instructions and electrical documentation provided by Tomas are excellent – very detailed and easy to understand. Despite the good instructions, this project is not for beginners: It requires high precision in mechanical manufacturing, careful assembly, and a certain degree of technical understanding.
What particularly impressed me was the printer’s mechanics: They are excellently thought out – compact, efficient, and extremely functional. Despite the complex technology, the entire device is surprisingly space-saving, without compromising on stability or accessibility.
Before this project, I had only had experience with FDM printers. Switching to SLS was a major challenge – especially the interplay of laser power, powder handling, temperature control, and software requires a lot of fine-tuning and understanding. But that’s exactly what makes the project so exciting: You learn an incredible amount – about material behavior, control technology, thermodynamics, and optical systems.
I would like to highlight Pavel’s software that controls the system. I’ve rarely seen such well-thought-out, intuitive, and powerful software in the DIY sector, even in commercial devices you rarely see something like this. The integration, stability, and range of functions are impressive.
The printer itself offers a variety of intelligent features that simplify operation and calibration. From sensor-based temperature control to automatic exposure correction and a clear web interface – the system appears well thought out and sophisticated.



