Bambu has not released spare harden steel standard hot ends for the vortex system yet. People keep saying you can print 7 colours but that’s not true yet. The H2C comes with 7 hot ends but 2 of them cannot be used in conjunction with the other 5, 0.4 nozzles due to them being different sizes (0.2 & 0.6). They do have high flow nozzles for sale but then I’d have to buy the full set (7) of High flow nozzles which are $111.00 au each.
They are releasing sets soon but they are a combination of different sizes in the set. I only want some 0.4 standard nozzles. I also watched a video about maintenance on these hot ends, replacing the rubber sock on the end of the hot end and the thermal rap around the shaft of the hot end but they do not sell them. I damaged the rap when I used a pair of pointy nose plyers to pick it up after it fell off and my wife tour of the sock when she tried to clear a clog from the hot end.