L Bracket for Corner Shelves

This is an L shaped mounted bracket that my spouse needed to make her shelves and added some modifications to make it stronger. PETG is recommended for this print. So far it has withstood at least 20lbs of weight from the assembly we did. I'm not planning to push it further as what we are doing is not heavy and for decoration. You can see the measurements of this piece (it's in millimeters)