burner-
commented
3 years ago Someone suggest "airplane travel" as better name for this :D
Open burner- opened 5 years ago
burner-
commented
3 years ago Someone suggest "airplane travel" as better name for this :D
Currently z axis of travel are linear or you can add z lift to travel. Also z lift with wipe is possible. With travel at plane without zlift with high speed can cause damage for printer, head or print when it hits to blobs. With large prints & nozzles it is some times quite rough ride when extruder travel long distances without z lift. Z lift helps for that but it slow down prints and with large nozzles it cause even more blobs and random failures to prints because when you hit 200-300mm/s to blob with 1.2mm nozzle it is quite hard collision. So solution for that would be make dynamic parabolic shape z lift. It can work by calculating time for xy acceleration from print speed to max travel speed and calculating z acceleration so that lift will take same time than zy acceleration but it is made simultaneously with xy travel. Because x&y need time to accelerate it will give soft lift ramp at same time. When x/y speed is increased to dangerously high also z is already lifted to safe distance. When travel start slow down also z will start come back to print plane. That way z lift wont make blobs and it will not slow down print at all and it will reduce failure possibility with high travel speeds.