Cheese press designed for my 170×200mm mold. Non-printed parts are stainless steel.

Bill of Materials:

• 2× DIN 975 threaded rod M12×500mm
• 1× DIN 933 hex bolt M16×120mm (or longer)
• 2× DIN 315 wing nut M12
• 6× DIN 934 hex nut M12
• 1× DIN 934 hex nut M16
• 2× DIN 125 washer M12
• 2× DIN 440 washer M12
• 1× DIN 440 washer M16

Springs:

• 68×80mm, rate: 0.14N×mm⁻¹ (5.74kg | 7.17kg)
• 80×80mm, rate: 0.28N×mm⁻¹ (11.34kg | 14.17kg)
• 70×80mm, rate: 0.49N×mm⁻¹ (19.64kg | 24.55kg)

The plates are designed to fit all 3 springs. With the taller bottom plate, the spring is compressed by 40mm and the resulting force is equal to the first value in parentheses, with the lower one it's 50mm (second value).

EDIT: added SCAD files.