def get_feed_rate(self, layer_height, multiplier=None):
"""
Return extruder feed rate
:param layer_height: layer height
:param multiplier: optional multiplier
:return: feed rate
"""
rate = utils.extrusion_feed_rate(self.nozzle, layer_height,
self.filament_d)
if not multiplier:
return rate * self.feed_rate_multiplier
return rate * self.feed_rate_multiplier * multiplier
def get_feed_length(self, move_length, layer_height, feed_multi=1.0):
"""
Returns the lenght of filament to extrude for given move.
Values in mm.
:param move_length: x/y movement length
:param layer_height: layer height
:param feed_multi: optional feed rate multiplier
:return: extrusion feed length
"""
rate = utils.extrusion_feed_rate(self.extrusion_width, layer_height,
self.filament_d)
rate *= self.feed_rate_multiplier * feed_multi
if rate > self.feed_rate_max:
raise ValueError(
"Feed rate too high ({}, layer h {})! Aborting.".format(
rate, layer_height))
return move_length * rate
