Update constants references

scripts/addons/cam/constants.py

@@ -42,3 +42,9 @@ if sys.version > "3":
     PY3 = True
 else:
     PY3 = False
+
+OCL_SCALE = 1000.0
+
+PYTHON_BIN = None
+
+_PREVIOUS_OCL_MESH = None

scripts/addons/cam/opencamlib/oclSample.py

@@ -20,13 +20,10 @@ except ImportError:
 
 import mathutils
 
+from ..constants import OCL_SCALE, _PREVIOUS_OCL_MESH
 from ..simple import activate
 from ..exception import CamException
-from ..async_op import progress_async
-
-OCL_SCALE = 1000.0
-
-_PREVIOUS_OCL_MESH = None
+from ..operators.async_op import progress_async
 
 
 def get_oclSTL(operation):

scripts/addons/cam/opencamlib/opencamlib.py

@@ -19,17 +19,13 @@ except ImportError:
 
 import bpy
 
-from ..constants import BULLET_SCALE
+from ..constants import BULLET_SCALE, OCL_SCALE, PYTHON_BIN
 from ..simple import activate
 from .. import utils
 from ..cam_chunk import CamPathChunk
-from ..async_op import progress_async
+from ..operators.async_op import progress_async
 from .oclSample import get_oclSTL, ocl_sample
 
-OCL_SCALE = 1000.0
-
-PYTHON_BIN = None
-
 
 def pointSamplesFromOCL(points, samples):
     """Update the z-coordinate of points based on corresponding sample values.

scripts/addons/cam/puzzle_joinery.py

@@ -20,7 +20,7 @@ from . import (
     utils,
 )
 
-from .constansts import DT
+from .constants import DT
 
 
 def finger(diameter, stem=2):