It is now possible to print the handle without support material. The handle also consists of only 2 parts and is put together after printing. The main part of the handle has a height of 290mm together with the bottom part resulting in a total length of 310mm. I also embellished the original stand for the hammer I hope you like it. So that all print files are in one place, I uploaded the remaining files from the original designer.
You can find the Original Hammer here https://www.thingiverse.com/thing:1311108
I borrowed the rock structure for the stand here https://www.prusaprinters.org/de/prints/5970-h0-rock-mold
The author remixed this model.