Do not use acetone on powder-coated sheets! (10:16 is just for the smooth PEI sheet)
A new video guide for our printer Prusa i3 MK3 on our YouTube channel! Are you struggling with filament insertion? How should the first layer calibration look? This video will help you set your printer up.
Handbook, Drivers and FW: https://www.prusa3d.com/drivers/