diff --git a/resources/definitions/atom3.def.json b/resources/definitions/atom3.def.json
index 80b5a7c787..2fcd6ebf21 100644
--- a/resources/definitions/atom3.def.json
+++ b/resources/definitions/atom3.def.json
@@ -6,7 +6,7 @@
         "visible": true,
         "author": "Daniel Kurth",
         "manufacturer": "Layer One",
-        "platform_offset": [0, -40, 0],
+        "platform_offset": [0, 0, 0],
         "has_machine_quality": false,
         "has_materials": true,
         "preferred_material": "layer_one_dark_gray_pla",
@@ -14,7 +14,7 @@
         "preferred_variant_name": "PTFE hotend + 0.4mm brass nozzle",
         "preferred_quality_type": "normal",
         "variants_name": "Tool:",
-        "platform": "Atom 3 bed.stl",
+        "platform": "Atom 3 bed.3mf",
         "machine_extruder_trains":
         {
             "0": "atom3_extruder_0"
diff --git a/resources/definitions/atom3_lite.def.json b/resources/definitions/atom3_lite.def.json
index 5450284052..69808e7ad3 100644
--- a/resources/definitions/atom3_lite.def.json
+++ b/resources/definitions/atom3_lite.def.json
@@ -7,7 +7,7 @@
         "manufacturer": "Layer One",
         "platform_offset": [0, 0, 0],
         "preferred_variant_name": "PTFE hotend + 0.4mm brass nozzle",
-        "platform": "Atom 3 lite bed.stl"
+        "platform": "Atom 3 lite bed.3mf"
     },
 
 
diff --git a/resources/meshes/Atom 3 bed.3mf b/resources/meshes/Atom 3 bed.3mf
new file mode 100644
index 0000000000..0f9921e926
Binary files /dev/null and b/resources/meshes/Atom 3 bed.3mf differ
diff --git a/resources/meshes/Atom 3 bed.stl b/resources/meshes/Atom 3 bed.stl
deleted file mode 100644
index d51e58fb06..0000000000
Binary files a/resources/meshes/Atom 3 bed.stl and /dev/null differ
diff --git a/resources/meshes/Atom 3 lite bed.3mf b/resources/meshes/Atom 3 lite bed.3mf
new file mode 100644
index 0000000000..d7a3b69c3c
Binary files /dev/null and b/resources/meshes/Atom 3 lite bed.3mf differ
diff --git a/resources/meshes/Atom 3 lite bed.stl b/resources/meshes/Atom 3 lite bed.stl
deleted file mode 100644
index 428bbfd621..0000000000
Binary files a/resources/meshes/Atom 3 lite bed.stl and /dev/null differ