diff --git a/homeassistant/components/dremel_3d_printer/binary_sensor.py b/homeassistant/components/dremel_3d_printer/binary_sensor.py
index 22c2a1a9557..f1fc31eac60 100644
--- a/homeassistant/components/dremel_3d_printer/binary_sensor.py
+++ b/homeassistant/components/dremel_3d_printer/binary_sensor.py
@@ -19,20 +19,13 @@ from .const import DOMAIN
 from .entity import Dremel3DPrinterEntity
 
 
-@dataclass(frozen=True)
-class Dremel3DPrinterBinarySensorEntityMixin:
-    """Mixin for Dremel 3D Printer binary sensor."""
+@dataclass(frozen=True, kw_only=True)
+class Dremel3DPrinterBinarySensorEntityDescription(BinarySensorEntityDescription):
+    """Describes a Dremel 3D Printer binary sensor."""
 
     value_fn: Callable[[Dremel3DPrinter], bool]
 
 
-@dataclass(frozen=True)
-class Dremel3DPrinterBinarySensorEntityDescription(
-    BinarySensorEntityDescription, Dremel3DPrinterBinarySensorEntityMixin
-):
-    """Describes a Dremel 3D Printer binary sensor."""
-
-
 BINARY_SENSOR_TYPES: tuple[Dremel3DPrinterBinarySensorEntityDescription, ...] = (
     Dremel3DPrinterBinarySensorEntityDescription(
         key="door",
diff --git a/homeassistant/components/dremel_3d_printer/button.py b/homeassistant/components/dremel_3d_printer/button.py
index b2ea103f78b..0a312de1468 100644
--- a/homeassistant/components/dremel_3d_printer/button.py
+++ b/homeassistant/components/dremel_3d_printer/button.py
@@ -16,20 +16,13 @@ from .const import DOMAIN
 from .entity import Dremel3DPrinterEntity
 
 
-@dataclass(frozen=True)
-class Dremel3DPrinterButtonEntityMixin:
-    """Mixin for required keys."""
+@dataclass(frozen=True, kw_only=True)
+class Dremel3DPrinterButtonEntityDescription(ButtonEntityDescription):
+    """Describes a Dremel 3D Printer button entity."""
 
     press_fn: Callable[[Dremel3DPrinter], None]
 
 
-@dataclass(frozen=True)
-class Dremel3DPrinterButtonEntityDescription(
-    ButtonEntityDescription, Dremel3DPrinterButtonEntityMixin
-):
-    """Describes a Dremel 3D Printer button entity."""
-
-
 BUTTON_TYPES: tuple[Dremel3DPrinterButtonEntityDescription, ...] = (
     Dremel3DPrinterButtonEntityDescription(
         key="cancel_job",
diff --git a/homeassistant/components/dremel_3d_printer/sensor.py b/homeassistant/components/dremel_3d_printer/sensor.py
index 98e4cd0e85d..0bcdfa904e8 100644
--- a/homeassistant/components/dremel_3d_printer/sensor.py
+++ b/homeassistant/components/dremel_3d_printer/sensor.py
@@ -31,19 +31,11 @@ from .const import ATTR_EXTRUDER, ATTR_PLATFORM, DOMAIN
 from .entity import Dremel3DPrinterEntity
 
 
-@dataclass(frozen=True)
-class Dremel3DPrinterSensorEntityMixin:
-    """Mixin for Dremel 3D Printer sensor."""
-
-    value_fn: Callable[[Dremel3DPrinter, str], StateType | datetime]
-
-
-@dataclass(frozen=True)
-class Dremel3DPrinterSensorEntityDescription(
-    SensorEntityDescription, Dremel3DPrinterSensorEntityMixin
-):
+@dataclass(frozen=True, kw_only=True)
+class Dremel3DPrinterSensorEntityDescription(SensorEntityDescription):
     """Describes a Dremel 3D Printer sensor."""
 
+    value_fn: Callable[[Dremel3DPrinter, str], StateType | datetime]
     available_fn: Callable[[Dremel3DPrinter, str], bool] = lambda api, _: True