Pimp my mower PARKSIDE® Tondeuse robot City Smart PAMRC 250 A1 Upgrade 16cm to 20 cm

To optimize the mowing speed of my Parkside robot PAMRC 250 A1, I modified the cutting disc with a larger diameter.
16 cm is fine, but 20 cm is better!
Two cutting height settings: 35 and 45 mm
For assembly, I reused the original screws and blades, then added nuts in place of the original inserts.
Printed in PETG for greater durability.