Frame rack corner

This frame rack corner can be used to connect the upright and square column with each other to build a frame rack. I used it to build a cubic frame rack as an insert for a storage box to put a plastic bag in and use it as a trash bin for wasted filament (such as purge, support structures or failed prints). You can easily customize the model for your individual purpose. you just need to print the following:8 corners 4 upright and square columns for each dimension (a,b and c)* (= 12 in total)You c