"Hey, hi 
No, I haven’t returned my K1 Max. It is a great printer, except my sample of K1 Max… it’s not suitable for printing cylinders. It has a closed chamber and a 300x300mm build size, which are hard to find in other affordable options.
However, because I needed to print many small cylinder objects, I had to purchase several Bambu Lab printers. It’s important to note that Bambu Lab printers have a 0.2mm nozzle size, while the K1 Max has a 0.4mm nozzle size. This difference was a game changer for me.
Just like you need small, medium, and large screwdrivers for serious work, I’ve found that each printer has its unique use. The K1 Max is like a large screwdriver, while the A1 and A1 Mini are like mid and small screwdrivers. I’m eagerly looking forward to buying the K2 Pro. After dealing with the K1 Max for almost 3 months, I feel prepared for anything.
Bambu Lab is great and works right out of the box, but there’s not much to learn. On the other hand, with Creality printers like the K1 Max, you soon become skilled in printer maintenance! :)"