Filament holder (3kg) quickly made using the Joker system

The Joker system is a modular furniture system used to create versatile and flexible storage solutions. It consists of metal tubes, connectors, and shelves that allow for easy combination of elements and adaptation of the structure to various needs. Due to the simplicity of assembly and the strength of the materials, the Joker system is often used in stores, offices, workshops, and residential spaces. You may have seen large joker constructions, for example in second-hand shops. I used this system for a quick setup of additional storage space. So I have some fittings and tubes left. On the Bambu Lab P1S, there is a small filament holder. But it is too small for a 3kg spool.Of course, there are many cool models of holders (spool holder) available online. They can be printed, and you can add +1 printed useful thing. But how to print them if there is nothing to hold the filament? ^_^ So here is a simple quickly assembled holder. Not everyone has the option to screw into a table or wall, but it might inspire something more interesting:

And I press with a flange (I keep a small hex key nearby to remove and fix the flange)