The odd commands that lowered the speed override values for PVA, FLEX etc. were removed
Now the wipe tower backups user speed override, sets it to 100%, does what is needed
and restores the old value when finished. There are no special cases - lowering
the speed for certain materials can be achieved by lowering the volumetric flow.
at the firmware. The M220 B / M220 R are only applied for MM prints
without any flex or soluble (PVA, BVOH) material, as for these materials
the MMU slows down the print using the M220 code.
fixes "LCD Speed Modifier Lost on Tool Change #421"
Changes in SupportMaterial.cpp, TriangleMesh.cpp and 01_trianglemesh.t
are yet to be merged.
WIP: Refactoring of layer height editing.
Removed layer_height_ranges from PrintObject, as the Print/PrintObject
now hold their copies of Model/ModelObject.
