This was one of the first large-scale projects I worked on when I started 3D modeling. There were some issues with the model, and I later lost the CAD files, so I couldn't fix them properly.

When printing, I recommend using the hammer and handle files, as they are complete parts

I've attached the complete 3MF file at the bottom of the document, as well as the 3MF file of the "Half-Life" and its components with explanations. It can be split for smaller printers, but I don't recommend doing this, as it will become messy during disassembly, things won't align properly, and for some reason, at least one part will be lost. If you want to play with this file and make it work, feel free to do so, but I apologize in advance - it's not very good.

As for the settings, I can only say to make the hammer head as light as possible

I'm sorry again for the ugliness of this model. If you're disgusted by it, I don't blame you. But I think, if you want to print it, why not at least release it so that others can give it a try?