Modular document tube - infinitely extensible

Do they still sell it?No stationery shop had a tube for storing unfolded paper documents, so I had to design one.I mean, I'm lazy and I didn't want to search around the city too much… However, this tube is modular and can accommodate any sheet size: by adding more [extender + tube], you can potentially handle even huge A0 sheets. The minimum unit, consisting of a single tube section and two caps, can hold up to an A5 sheet.----------------------------------------------------------------------Print profile overviewThe print profile is set to accommodate an A3 size, the most common step up from A4; there will be two tube sections, two caps, and an extender.For those who want to use the Bambu Handy shortcuts (e.g. copies per plate), each part will also have its own plate. 1) 2 x tube;2) 2 x cap + extender; 3) tube;4) cap;5) extender. No AMS is needed. All plates are suitable for A1 minis. ----------------------------------------------------------------------AssemblyScrew the parts