The organizer allows for variable size of the compartment according to your needs. The minimum distance between the partitions is 20 mm. The holder with magnets has a protrusion that fits into the printer frame and prevents the organizer from slipping out of the printer. Block 2 (ToolboxPC1_Blok2_custom) can be adjusted in the slicer for custom magnets (for sufficient strength, I chose magnets 19 x 9 x 4.5 mm - ToolboxPC1_Blok2_19x9x4.5)

Filament PETG, PLA, layer height 0.25 mm is suitable for printing.