filament_max_volumetric may be 0 which cause zero
flushing speed. Add protection for this issue.
Signed-off-by: salt.wei <salt.wei@bambulab.com>
Change-Id: I866b9d97c9c6d97122a4a2beaf508ce9c72ee3b2
Add M400 to avoid temperature switched before flush end.
Signed-off-by: salt.wei <salt.wei@bambulab.com>
Change-Id: I118bb240357e5c820c15e46ae34efa62248fdacc