@Shai_Schechter No. The nozzles are not intended to be removed from the cores, and have the nozzle size printed on them (I believe they only have .4mm for now, but plan to release other sizes of print cores).
@Whosa_whatsis So basically you’re forced to buy a full new core for a different nozzle size? Sounds expensive.
Right now this is the case indeed. I think it’s one of the main points of criticism from the last round of beta testing on the hardware side. I think the cores are going to cost around $100. (but don’t quote me on this one, I could be wrong)
On one hand, it’s a lot quicker to change a printcore then a nozzle. But it is also more expensive in the initial buy. I’ve heard some hallway talk about maybe making a core with screw-able nozzles like in the UM2+. But those are just random ideas, nothing has been decided on that area yet.
The nozzles are part of the heater block, which you can unscrew with the proper instructions. However, if you do it improper you will damage or break part of the hotend. So that’s not useful if you want to swap often. Note that the UM2 (not the UM2+) has the same issue.