# Description
This PR adds support for the new printer model **Cubicon xCeler-Plus**.
It includes:
- Machine configuration (JSON)
- Process profiles (Speed, Quality settings)
- Filament settings
- Bed texture and model resources
# Screenshots/Recordings/Graphs
# Tests
I have successfully tested the sliced G-code on the actual machine (Cubicon xCeler-Plus).
- [x] Slicing test passed
- [x] Printing test passed with Klipper firmware
* Change ironing angle setting to be an offset angle from the top surface angle rather offset from the layer 0 angle that changes on each layer.
* Change Ironing angle offset range from [-1,359] to [0,359].
-1 is redundant because it is the same behavior as 0 offset.
* Change ironing_angle new default value to 0.
* Update existing print profiles' hardcoded ironing_angles from -1 to 0 to reflect new default value.
* Add migration for old -1 ironing_angle settings. Remove logic for -1 ironing_angle.
* Add u8 prefix for degree symbol string
* Use solid_infill_direction instead of infill_direction for top surface infill direction. Use calculate_infill_rotation_angle to add offset to solid_infill_rotate_template if used.
* Update quality settings wiki for Ironing
* Set f->is_using_template_angle when making ironing filler objects
* Update quality_settings_ironing link from #angle to #angle-offset
---------
Co-authored-by: Noisyfox <timemanager.rick@gmail.com>
