improved rotor for NEMA17 peristaltic pump

improved rotor parts for NEMA17-improved peristaltic pump.
My stepper motor has a shorter axis as the proposed one and thus used to break the provided rotor plates.
This design has a wider guide for the axis to prevent slipping.
No additional parts are required.
I printed it in PETG but also ABS and PLA can be used (not tested).
Made using Autodesk Inventor 2021.