Creality's IFA lineup includes a K3 printer claiming nozzle swaps in 4.8 seconds and an M1 Filament Maker that works with a shredder to reuse plastic and failed prints.
Those are manufacturer claims, not independently proven savings. The engineering questions are purging, material compatibility, filament diameter consistency and print strength.
Action: compare the K3's changeover mechanism with the H2D and bookmark the M1 for independent testing. The recycling idea is fascinating, but buying before quality data appears would be premature.
