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Cargo box for bike rack, bungee mountable over bags
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updated December 8, 2025

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I was bruising my bananas when I put them in my saddle bags and decide to design a cargo box to go over the top.  I wanted to make sure it could be printed on a prusa MK4.
I Printed in Petg as I ride it along the ocean in the summer so PLA is not an option.

I did a filament swap pause for a translucent color front and back to make it look better to me.  Glued it with 3d gloop for petg and inserted 2x 5mm carbon fiber rods that I had laying around to strengthen it against the layer lines which I don't believe it needs, but I had them laying around and it was a design for strength practice project for me.

I did the object split in prusa slicer and with the dove tail joints locking the piece in one direction and tubes locking it in the other it seems stable without glue.

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