fixed import errors for blender 4.2. but may cause problems. still all work on blender 4.1.1

scripts/addons/cam/__init__.py

@@ -72,7 +72,7 @@ from .curvecamtools import (
     CamObjectSilhouete,
 )
 from .engine import (
-    BLENDERCAM_ENGINE,
+    CNCCAM_ENGINE,
     get_panels,
 )
 from .machine_settings import machineSettings
@@ -234,7 +234,7 @@ classes = [
     CamObjectSilhouete,
 
     # .engine
-    BLENDERCAM_ENGINE,
+    CNCCAM_ENGINE,
 
     # .machine_settings
     machineSettings,
@@ -382,7 +382,7 @@ def register() -> None:
     )
 
     for panel in get_panels():
-        panel.COMPAT_ENGINES.add("BLENDERCAM_RENDER")
+        panel.COMPAT_ENGINES.add("CNCCAM_RENDER")
 
     wm = bpy.context.window_manager
     addon_kc = wm.keyconfigs.addon
@@ -418,12 +418,12 @@ def unregister() -> None:
     del scene.cam_slice
 
     for panel in get_panels():
-        if 'BLENDERCAM_RENDER' in panel.COMPAT_ENGINES:
-            panel.COMPAT_ENGINES.remove('BLENDERCAM_RENDER')
+        if 'CNCCAM_RENDER' in panel.COMPAT_ENGINES:
+            panel.COMPAT_ENGINES.remove('CNCCAM_RENDER')
 
     wm = bpy.context.window_manager
     active_kc = wm.keyconfigs.active
 
     for key in active_kc.keymaps['Object Mode'].keymap_items:
         if (key.idname == 'wm.call_menu' and key.properties.name == 'VIEW3D_MT_PIE_CAM'):
-            active_kc.keymaps['Object Mode'].keymap_items.remove(key)
+            active_kc.keymaps['Object Mode'].keymap_items.remove(key)

scripts/addons/cam/engine.py

@@ -1,4 +1,4 @@
-"""BlenderCAM 'engine.py'
+"""CNCCAM 'engine.py'
 
 Engine definition, options and panels.
 """
@@ -28,9 +28,9 @@ from .ui_panels.pack import CAM_PACK_Panel
 from .ui_panels.slice import CAM_SLICE_Panel
 
 
-class BLENDERCAM_ENGINE(RenderEngine):
-    bl_idname = "BLENDERCAM_RENDER"
-    bl_label = "BlenderCAM"
+class CNCCAM_ENGINE(RenderEngine):
+    bl_idname = "CNCCAM_RENDER"
+    bl_label = "CNC CAM"
     bl_use_eevee_viewport = True
 
 

scripts/addons/cam/utils.py

@@ -1849,8 +1849,9 @@ def updateOperation(self, context):
 def isValid(o, context):
     valid = True
     if o.geometry_source == 'OBJECT':
-        if o.object_name not in bpy.data.objects:
-            valid = False
+        if not o.object_name.endswith('_cut_bridges'):  #  let empty bridge cut be valid
+            if o.object_name not in bpy.data.objects:
+                valid = False
     if o.geometry_source == 'COLLECTION':
         if o.collection_name not in bpy.data.collections:
             valid = False