In this video I unbox and review the Anycubic Kobra S1, Anycubic’s first CoreXY machine, and I go through the full setup from transport screws (don’t skip those) to calibration, auto bed levelling and resonance testing. I also show the Ace Pro multi-colour unit, how it connects up, and why the built-in dryer is a genuinely big plus compared to a lot of other multi-colour CoreXY options. The whole build and initial setup was honestly pretty seamless, and the interface guides you step-by-step. Where things got spicy was multi-colour reliability. I managed great looking prints, but I also hit repeated retraction abnormal errors (code 11512), filament getting stuck, and failures that meant a “22 hour” multi-colour job turned into nearly 30 hours with multiple restarts. Single-colour long prints were solid, and bed levelling on my unit was spot on, but for a printer sold on multi-colour CoreXY, I don’t think I should need community mods just to get consistent colour changes. My takeaway: great value, great features (especially the dryer), but it needs fine-tuning around the Ace Pro filament path/retraction to be truly plug-and-play.