I have a 300mmx300mm print bed on an Artillery Sidewinder X1. Cura (v 5.1.0) currently limits this down to 276mmx276mm with the non-editable safe zone. May not sound like a lot but that's 15% of the total print volume!!
I've seen a little bit of information on this, but more specific on a "per-printer" basis and modifying the printer definitions in the program files. With the Sidewinder, it appears the overrides are inherited from other definitions and it seemed to become a wild goose chase to find truly editable values that would help expand the volume.
I understand the purposes behind the safe zone but my print head can travel the entire 300mm without hardware impedance and I don't use and bed clips due to the glass bed design - and by evidence of not having override values applied directly to my printer in the files, it would seem I should be able to change these on my own. I worked for 5 hours making a part that has a requirement of 286mm in length (printing vertically is not an option). With my build plate having 14mm to spare, I didn't think Cura would be such a pain to get past.
I paid for the whole printer, I'm going to use the whole printer, dang it! Please, can someone just tell me while file to alter, or where I can expand it just a little bit so I can fit this 286mm part. PLEASE, SOMEONE HELP JUST EXPAND THE SAFE ZONE 10MM