Gridfinity paper holder for all sizes

I made these modular corner and side pieces to store all kinds of paper in your gridfinity. The side modules are mostly if you want to hold your papers in the corner of your gridfinity (like in one of the pictures). But the normal A4 size papers could move quite a bit if you only use the corner modules, so these side modules come in handy for this too. I recommend that you print 4 corner modules and 4 side modules if you want to use these for the A4 size. So you will need to print this print file 4 times. You can also download the models on makerworld so you can chose how much corner and/or side modules you want to print. But this isn't just for paper sizes. As shown in the pictures, you can store many rectangular things with these. Because you only need the corners and/or the sides, these things don't need much filament. I didn't really change much settings apart from the infill, I set it to 10%. But if you find that they are sturdy enough for your needs, you could play ar