def write_block(self, block, data, skip_audit=False):
""" Writes a block.
block is an integer
data is a bytearray, filename, or FLP.Packets object
"""
if isinstance(data, FLP.Packets):
assert skip_audit == False
return self.write_block_flp(block, data)
if not isinstance(data, bytearray):
data = bytearray(open(data, "rb").read())
# Check to see that laser power is always acceptable,
# raising an exception if the power is too high
if self.AUDIT_LASER_POWER and not skip_audit:
flp = FLP.fromstring(data)
self.audit_laser_power_flp(flp)
header = bytearray(struct.pack("<III", block, len(data), self._fletcher32(data)))
self._command(Command.CMD_LOAD_PRINT_DATA_BLOCK, header + data, expect_success=True)
def read_block_flp(self, block):
return FLP.fromstring(self.read_block(block))
CMD_DELETE_FILE = 0x64
CMD_CREATE_DIRECTORY = 0x65
CMD_READ_DIRECTORY = 0x67
CMD_DELETE_DIRECTORY = 0x66
CMD_GET_FILE_INFORMATION = 0x68
STATUS_LAYER_DONE = 0x80
STATUS_LAYER_NON_FATAL_ERROR = 0x81
STATUS_BLOCK_DONE = 0x84
STATUS_PRINT_DONE = 0x82
DEBUG_STRING = 0x90
class State(Enum):
MACHINE_OFF = 0
MACHINE_POWERING_UP = 1
MACHINE_RAISING_PLATFORM = 2
MACHINE_READY_TO_PRINT = 3
MACHINE_PRINTING = 4
MACHINE_PRINTING_PAUSE_PENDING = 5
MACHINE_PRINTING_PAUSED = 6
MACHINE_STOPPING_PRINT = 7
MACHINE_SHUTTING_DOWN = 8
MACHINE_ERROR = 9
MACHINE_HARD_ERROR = 10
MACHINE_STATE_NONE = 11
if __name__ == '__main__':
FLP.print_not_a_script_message_and_exit()
if isinstance(layer[i], FLP.WaitForMovesToComplete):
insertBefore_i = 1 + i
break
assert insertBefore_i is not None
# Now we know where the motors are stopped and tilt is at its lowest.
pauseCycle = FLP.Packets()
zJog_usteps = int(zJog_mm * FLP.ZMove.usteps_up_per_mm)
zJog_mmps = 10.0
pauseCycle.append(FLP.ZCurrent(FLP.ZCurrent.moving_current))
pauseCycle.append(FLP.ZFeedRate(zJog_mmps * abs(FLP.ZMove.usteps_up_per_mm)))
pauseCycle.append(FLP.ZMove(zJog_usteps))
pauseCycle.append(FLP.WaitForMovesToComplete())
pauseCycle.append(FLP.WaitButtonPress(buttonPressMessage))
pauseCycle.append(FLP.ZMove(-zJog_usteps))
pauseCycle.append(FLP.WaitForMovesToComplete())
# Restore settings:
pauseCycle.append(FLP.ZCurrent(zCurrent))
if zSpeed_usteps_per_s is not None:
pauseCycle.append(FLP.ZFeedRate(zSpeed_usteps_per_s))
newLayer = layer[:insertBefore_i] + pauseCycle + layer[insertBefore_i:]
return newLayer
if __name__ == '__main__':
import sys
assert len(sys.argv) == 3, "Usage: insert_material_swaps.py input.flp output.flp."
layer = FLP.fromfile(sys.argv[1])
layer = insert_pause_before(layer)
layer.tofile(sys.argv[2])
def read_block_flp(self, block):
return FLP.fromstring(self.read_block_raw(block))
CMD_CREATE_DIRECTORY = 0x65
CMD_READ_DIRECTORY = 0x67
CMD_DELETE_DIRECTORY = 0x66
CMD_GET_FILE_INFORMATION = 0x68
STATUS_LAYER_DONE = 0x80
STATUS_LAYER_NON_FATAL_ERROR = 0x81
STATUS_BLOCK_DONE = 0x84
STATUS_PRINT_DONE = 0x82
DEBUG_STRING = 0x90
class State(Enum):
MACHINE_OFF = 0
MACHINE_POWERING_UP = 1
MACHINE_RAISING_PLATFORM = 2
MACHINE_READY_TO_PRINT = 3
MACHINE_PRINTING = 4
MACHINE_PRINTING_PAUSE_PENDING = 5
MACHINE_PRINTING_PAUSED = 6
MACHINE_STOPPING_PRINT = 7
MACHINE_SHUTTING_DOWN = 8
MACHINE_ERROR = 9
MACHINE_HARD_ERROR = 10
MACHINE_STATE_NONE = 11
if __name__ == '__main__':
FLP.print_not_a_script_message_and_exit()
Summary of changes:
1) First, it changes the Z feed rate in line 5
2) Next, it inserts a positive Z move of 2000 usteps (5mm)
3) Lastly, it changes the Z move in layer 9 to -1960 (-4.9mm)
Note that in this case, positive values move the build plate away from the vat, and negative values move the build plate closer to the vat.
loop continues until it gets to the last block on the printer and then it ends.
'''
print("starting loop")
while blockNum <= lastBlock:
layer = p.read_block_flp(blockNum)
layerStartTime = datetime.now()
if str(layer[5]) != '0x04 ZFeedRate ' + str(267):
try:
layer[5] = FLP.ZFeedRate(267)
except:
break
if str(layer[6]) != '0x03 ZMove ' + str(2000):
try:
layer.insert(6, FLP.ZMove(usteps=(2000)))
except:
break
if str(layer[9]) != '0x03 ZMove ' + str(-1980):
try:
layer[9] = FLP.ZMove(usteps=(-1980))
except:
break
writeLayer()
print("Layer " + str(blockNum) + " finished in " +
str(datetime.now() - layerStartTime))
