For a solid hobby 4-axis machine, plan roughly Eu 150–350 depending on how much you already own and how much you scavenge. Rough breakdown: four NEMA-17 steppers and drivers (€40–70), an ESP32/FluidNC-capable board (€10–25), 2020 extrusion and brackets (€40–90), GT2 belts/pulleys/idlers and V-wheels or bearings (€30–60), two power supplies (€25–50), wire, springs, wiring and fasteners (€20–40).
You can go cheaper with plywood and salvaged parts, or much higher with linear rails and ball screws you do not need. The expensive mistakes are usually buying too big and over-specifying motion hardware — a foam cutter barely loads its motors, so spend on squareness, not horsepower.
for a 5th axis add about Eu 150-300 ( stepper motor, 5-axis control board , extra hardware )
You can go cheaper with plywood and salvaged parts, or much higher with linear rails and ball screws you do not need. The expensive mistakes are usually buying too big and over-specifying motion hardware — a foam cutter barely loads its motors, so spend on squareness, not horsepower.
for a 5th axis add about Eu 150-300 ( stepper motor, 5-axis control board , extra hardware )