User's Manual Part 2

CHAPTER 8. OPERATIONAL TIPS 207
2. Pri nt multiple small objects at once;thiscanactuallyim-
prove the quality of objects (as well as production speed).
3. Avoid straight-line extru si o n runs through the center of the
build plate.
8.1.1 Position objects towa rds the edge of the build
plate
In consequ ence of the Polar3D printer’s underlying polar coor-
dinates architecture, note that objects may print faster if you
position them towards the edge of the build plate, rather than
at the center. Positioning an object towards the edge of the
build plate won’t e↵ect the speed of extrusion; but when the
printer needs to spin the build plate t o achieve a non-extrusion
move, the same angular spin results in a longer arc length (faster
movement) towards the edge of the build plate.
8.1.2 Print multiple smal l objects at once
When printing a small object, especially a small and tall object,
the printer may pri nt so quick l y that successive layers are de-
posited while lower layers are s ti l l hot and malleable, resulting
in a “smo oshed” or “melted” e↵ect on the print: a less than
optimal print outcome.
One approach is to slow down the print, for instance by in-
serting Gcode for a delay after each layer. Anoth er approach is
to point a small fan at the build plate, to speed up the cooling
process, so that even small, quickly-printed layers get cool be-
fore t he printer gets to the next layer. A third approach i s to