diff --git a/CHANGELOG.md b/CHANGELOG.md
index 545e6a50..ba00b85b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -24,6 +24,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - Pads removed from *.Paste
   - Drawings removed from *.Adhes
   - Components crossed in *.Fab
+- STEP (3D) support for variants.
 
 ### Fixed
 - Virtual components are always excluded from position files.
diff --git a/README.md b/README.md
index 08deb827..7efee06a 100644
--- a/README.md
+++ b/README.md
@@ -849,7 +849,7 @@ Next time you need this list just use an alias, like this:
         - `output`: [string='%f-%i%v.%x'] output file name (%i='top_pos'|'bottom_pos'|'both_pos', %x='pos'|'csv'). Affected by global options.
         - `separate_files_for_front_and_back`: [boolean=true] generate two separated files, one for the top and another for the bottom.
         - `units`: [string='millimeters'] [millimeters,inches] units used for the positions.
-        - `variant`: [string=''] Board variant(s) to apply.
+        - `variant`: [string=''] Board variant to apply.
 
 * PS (Postscript)
   * Type: `ps`
@@ -916,6 +916,8 @@ Next time you need this list just use an alias, like this:
     - `name`: [string=''] Used to identify this particular output definition.
     - `options`: [dict] Options for the `step` output.
       * Valid keys:
+        - `dnf_filter`: [string|list(string)=''] Name of the filter to mark components as not fitted.
+                        A short-cut to use for simple cases where a variant is an overkill.
         - `metric_units`: [boolean=true] use metric units instead of inches.
         - `min_distance`: [number=-1] the minimum distance between points to treat them as separate ones (-1 is KiCad default: 0.01 mm).
         - `no_virtual`: [boolean=false] used to exclude 3D models for components with 'virtual' attribute.
@@ -923,6 +925,7 @@ Next time you need this list just use an alias, like this:
                     The drill option uses the auxiliar reference defined by the user.
                     You can define any other origin using the format 'X,Y', i.e. '3.2,-10'.
         - `output`: [string='%f-%i%v.%x'] name for the generated STEP file (%i='3D' %x='step'). Affected by global options.
+        - `variant`: [string=''] Board variant to apply.
 
 * SVG (Scalable Vector Graphics)
   * Type: `svg`
diff --git a/docs/samples/generic_plot.kibot.yaml b/docs/samples/generic_plot.kibot.yaml
index 74afaf3d..e6a8d6a8 100644
--- a/docs/samples/generic_plot.kibot.yaml
+++ b/docs/samples/generic_plot.kibot.yaml
@@ -667,7 +667,7 @@ outputs:
       separate_files_for_front_and_back: true
       # [string='millimeters'] [millimeters,inches] units used for the positions
       units: 'millimeters'
-      # [string=''] Board variant(s) to apply
+      # [string=''] Board variant to apply
       variant: ''
 
   # PS (Postscript):
@@ -743,6 +743,9 @@ outputs:
     type: 'step'
     dir: 'Example/step_dir'
     options:
+      # [string|list(string)=''] Name of the filter to mark components as not fitted.
+      # A short-cut to use for simple cases where a variant is an overkill
+      dnf_filter: ''
       # [boolean=true] use metric units instead of inches
       metric_units: true
       # [number=-1] the minimum distance between points to treat them as separate ones (-1 is KiCad default: 0.01 mm)
@@ -755,6 +758,8 @@ outputs:
       origin: 'grid'
       # [string='%f-%i%v.%x'] name for the generated STEP file (%i='3D' %x='step'). Affected by global options
       output: '%f-%i%v.%x'
+      # [string=''] Board variant to apply
+      variant: ''
 
   # SVG (Scalable Vector Graphics):
   # Unlike bitmaps SVG drawings can be scaled without losing resolution.
diff --git a/kibot/out_position.py b/kibot/out_position.py
index b2b4e069..e6b033b8 100644
--- a/kibot/out_position.py
+++ b/kibot/out_position.py
@@ -34,7 +34,7 @@ class PositionOptions(BaseOptions):
             self.units = 'millimeters'
             """ [millimeters,inches] units used for the positions """
             self.variant = ''
-            """ Board variant(s) to apply """
+            """ Board variant to apply """
             self.dnf_filter = Optionable
             """ [string|list(string)=''] Name of the filter to mark components as not fitted.
                 A short-cut to use for simple cases where a variant is an overkill """
diff --git a/kibot/out_step.py b/kibot/out_step.py
index 7ede8753..208c6038 100644
--- a/kibot/out_step.py
+++ b/kibot/out_step.py
@@ -4,11 +4,16 @@
 # License: GPL-3.0
 # Project: KiBot (formerly KiPlot)
 import re
+import os
 from subprocess import (check_output, STDOUT, CalledProcessError)
+from tempfile import NamedTemporaryFile
 from .error import KiPlotConfigurationError
 from .misc import (KICAD2STEP, KICAD2STEP_ERR)
 from .gs import (GS)
-from .optionable import BaseOptions
+from .optionable import BaseOptions, Optionable
+from .registrable import RegOutput
+from .kiplot import load_sch
+from .fil_base import BaseFilter, apply_fitted_filter
 from .macros import macros, document, output_class  # noqa: F401
 from . import log
 
@@ -30,8 +35,18 @@ class STEPOptions(BaseOptions):
             """ the minimum distance between points to treat them as separate ones (-1 is KiCad default: 0.01 mm) """
             self.output = GS.def_global_output
             """ name for the generated STEP file (%i='3D' %x='step') """
+            self.variant = ''
+            """ Board variant to apply """
+            self.dnf_filter = Optionable
+            """ [string|list(string)=''] Name of the filter to mark components as not fitted.
+                A short-cut to use for simple cases where a variant is an overkill """
         super().__init__()
 
+    def config(self):
+        super().config()
+        self.variant = RegOutput.check_variant(self.variant)
+        self.dnf_filter = BaseFilter.solve_filter(self.dnf_filter, 'dnf_filter')
+
     @property
     def origin(self):
         return self._origin
@@ -42,6 +57,46 @@ class STEPOptions(BaseOptions):
             raise KiPlotConfigurationError('Origin must be `grid` or `drill` or `X,Y`')
         self._origin = val
 
+    def filter_components(self):
+        if not self.dnf_filter and not self.variant:
+            return GS.pcb_file
+        load_sch()
+        # Get the components list from the schematic
+        comps = GS.sch.get_components()
+        # Apply the filter
+        apply_fitted_filter(comps, self.dnf_filter)
+        # Apply the variant
+        if self.variant:
+            # Apply the variant
+            self.variant.filter(comps)
+        comps_hash = {c.ref: c for c in comps}
+        # Remove the 3D models for not fitted components
+        rem_models = []
+        for m in GS.board.GetModules():
+            ref = m.GetReference()
+            c = comps_hash.get(ref, None)
+            if c and not c.fitted:
+                models = m.Models()
+                rem_m_models = []
+                while not models.empty():
+                    rem_m_models.append(models.pop())
+                rem_models.append(rem_m_models)
+        # Save the PCB to a temporal file
+        with NamedTemporaryFile(mode='w', suffix='.kicad_pcb', delete=False) as f:
+            fname = f.name
+        logger.debug('Storing filtered PCB to `{}`'.format(fname))
+        GS.board.Save(fname)
+        # Undo the removing
+        for m in GS.board.GetModules():
+            ref = m.GetReference()
+            c = comps_hash.get(ref, None)
+            if c and not c.fitted:
+                models = m.Models()
+                restore = rem_models.pop(0)
+                for model in restore:
+                    models.push_front(model)
+        return fname
+
     def run(self, output_dir, board):
         # Output file name
         output = self.expand_filename(output_dir, self.output, '3D', 'step')
@@ -64,7 +119,8 @@ class STEPOptions(BaseOptions):
         else:
             cmd.extend(['--user-origin', "{}{}".format(self.origin.replace(',', 'x'), units)])
         # The board
-        cmd.append(GS.pcb_file)
+        board_name = self.filter_components()
+        cmd.append(board_name)
         # Execute and inform is successful
         logger.debug('Executing: '+str(cmd))
         try:
@@ -76,6 +132,10 @@ class STEPOptions(BaseOptions):
             if e.output:
                 logger.debug('Output from command: '+e.output.decode())
             exit(KICAD2STEP_ERR)
+        finally:
+            # Remove the temporal PCB
+            if board_name != GS.pcb_file:
+                os.remove(board_name)
         logger.debug('Output from command:\n'+cmd_output.decode())
 
 
diff --git a/tests/board_samples/kibom-variant_3.kicad_pcb b/tests/board_samples/kibom-variant_3.kicad_pcb
index f626dd3f..9244da56 100644
--- a/tests/board_samples/kibom-variant_3.kicad_pcb
+++ b/tests/board_samples/kibom-variant_3.kicad_pcb
@@ -128,17 +128,17 @@
     (fp_text value 1k (at 0 1.65) (layer F.Fab)
       (effects (font (size 1 1) (thickness 0.15)))
     )
-    (fp_line (start -1 0.6) (end -1 -0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start -1 -0.6) (end 1 -0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start 1 -0.6) (end 1 0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start 1 0.6) (end -1 0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start -0.258578 -0.71) (end 0.258578 -0.71) (layer F.SilkS) (width 0.12))
-    (fp_line (start -0.258578 0.71) (end 0.258578 0.71) (layer F.SilkS) (width 0.12))
-    (fp_line (start -1.68 0.95) (end -1.68 -0.95) (layer F.CrtYd) (width 0.05))
-    (fp_line (start -1.68 -0.95) (end 1.68 -0.95) (layer F.CrtYd) (width 0.05))
-    (fp_line (start 1.68 -0.95) (end 1.68 0.95) (layer F.CrtYd) (width 0.05))
-    (fp_line (start 1.68 0.95) (end -1.68 0.95) (layer F.CrtYd) (width 0.05))
     (fp_circle (center 0 0) (end 0.4 0) (layer F.Adhes) (width 0.1))
+    (fp_line (start 1.68 0.95) (end -1.68 0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start 1.68 -0.95) (end 1.68 0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start -1.68 -0.95) (end 1.68 -0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start -1.68 0.95) (end -1.68 -0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start -0.258578 0.71) (end 0.258578 0.71) (layer F.SilkS) (width 0.12))
+    (fp_line (start -0.258578 -0.71) (end 0.258578 -0.71) (layer F.SilkS) (width 0.12))
+    (fp_line (start 1 0.6) (end -1 0.6) (layer F.Fab) (width 0.1))
+    (fp_line (start 1 -0.6) (end 1 0.6) (layer F.Fab) (width 0.1))
+    (fp_line (start -1 -0.6) (end 1 -0.6) (layer F.Fab) (width 0.1))
+    (fp_line (start -1 0.6) (end -1 -0.6) (layer F.Fab) (width 0.1))
     (fp_text user %R (at 0 0) (layer F.Fab)
       (effects (font (size 0.5 0.5) (thickness 0.08)))
     )
@@ -162,17 +162,17 @@
     (fp_text value 1000 (at 0 1.65) (layer F.Fab)
       (effects (font (size 1 1) (thickness 0.15)))
     )
-    (fp_line (start -1 0.6) (end -1 -0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start -1 -0.6) (end 1 -0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start 1 -0.6) (end 1 0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start 1 0.6) (end -1 0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start -0.258578 -0.71) (end 0.258578 -0.71) (layer F.SilkS) (width 0.12))
-    (fp_line (start -0.258578 0.71) (end 0.258578 0.71) (layer F.SilkS) (width 0.12))
-    (fp_line (start -1.68 0.95) (end -1.68 -0.95) (layer F.CrtYd) (width 0.05))
-    (fp_line (start -1.68 -0.95) (end 1.68 -0.95) (layer F.CrtYd) (width 0.05))
-    (fp_line (start 1.68 -0.95) (end 1.68 0.95) (layer F.CrtYd) (width 0.05))
-    (fp_line (start 1.68 0.95) (end -1.68 0.95) (layer F.CrtYd) (width 0.05))
     (fp_circle (center 0 0) (end 0.4 0) (layer F.Adhes) (width 0.1))
+    (fp_line (start 1.68 0.95) (end -1.68 0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start 1.68 -0.95) (end 1.68 0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start -1.68 -0.95) (end 1.68 -0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start -1.68 0.95) (end -1.68 -0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start -0.258578 0.71) (end 0.258578 0.71) (layer F.SilkS) (width 0.12))
+    (fp_line (start -0.258578 -0.71) (end 0.258578 -0.71) (layer F.SilkS) (width 0.12))
+    (fp_line (start 1 0.6) (end -1 0.6) (layer F.Fab) (width 0.1))
+    (fp_line (start 1 -0.6) (end 1 0.6) (layer F.Fab) (width 0.1))
+    (fp_line (start -1 -0.6) (end 1 -0.6) (layer F.Fab) (width 0.1))
+    (fp_line (start -1 0.6) (end -1 -0.6) (layer F.Fab) (width 0.1))
     (fp_text user %R (at 0 0) (layer F.Fab)
       (effects (font (size 0.5 0.5) (thickness 0.08)))
     )
@@ -199,17 +199,17 @@
     (fp_text value 1k (at 0 1.65) (layer F.Fab)
       (effects (font (size 1 1) (thickness 0.15)))
     )
-    (fp_line (start -1 0.6) (end -1 -0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start -1 -0.6) (end 1 -0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start 1 -0.6) (end 1 0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start 1 0.6) (end -1 0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start -0.258578 -0.71) (end 0.258578 -0.71) (layer F.SilkS) (width 0.12))
-    (fp_line (start -0.258578 0.71) (end 0.258578 0.71) (layer F.SilkS) (width 0.12))
-    (fp_line (start -1.68 0.95) (end -1.68 -0.95) (layer F.CrtYd) (width 0.05))
-    (fp_line (start -1.68 -0.95) (end 1.68 -0.95) (layer F.CrtYd) (width 0.05))
-    (fp_line (start 1.68 -0.95) (end 1.68 0.95) (layer F.CrtYd) (width 0.05))
-    (fp_line (start 1.68 0.95) (end -1.68 0.95) (layer F.CrtYd) (width 0.05))
     (fp_circle (center 0 0) (end 0.4 0) (layer F.Adhes) (width 0.1))
+    (fp_line (start 1.68 0.95) (end -1.68 0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start 1.68 -0.95) (end 1.68 0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start -1.68 -0.95) (end 1.68 -0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start -1.68 0.95) (end -1.68 -0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start -0.258578 0.71) (end 0.258578 0.71) (layer F.SilkS) (width 0.12))
+    (fp_line (start -0.258578 -0.71) (end 0.258578 -0.71) (layer F.SilkS) (width 0.12))
+    (fp_line (start 1 0.6) (end -1 0.6) (layer F.Fab) (width 0.1))
+    (fp_line (start 1 -0.6) (end 1 0.6) (layer F.Fab) (width 0.1))
+    (fp_line (start -1 -0.6) (end 1 -0.6) (layer F.Fab) (width 0.1))
+    (fp_line (start -1 0.6) (end -1 -0.6) (layer F.Fab) (width 0.1))
     (fp_text user %R (at 0 0) (layer F.Fab)
       (effects (font (size 0.5 0.5) (thickness 0.08)))
     )
@@ -235,17 +235,17 @@
     (fp_text value "1000 pF" (at 0 1.65) (layer F.Fab)
       (effects (font (size 1 1) (thickness 0.15)))
     )
-    (fp_line (start -1 0.6) (end -1 -0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start -1 -0.6) (end 1 -0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start 1 -0.6) (end 1 0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start 1 0.6) (end -1 0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start -0.258578 -0.71) (end 0.258578 -0.71) (layer F.SilkS) (width 0.12))
-    (fp_line (start -0.258578 0.71) (end 0.258578 0.71) (layer F.SilkS) (width 0.12))
-    (fp_line (start -1.68 0.95) (end -1.68 -0.95) (layer F.CrtYd) (width 0.05))
-    (fp_line (start -1.68 -0.95) (end 1.68 -0.95) (layer F.CrtYd) (width 0.05))
-    (fp_line (start 1.68 -0.95) (end 1.68 0.95) (layer F.CrtYd) (width 0.05))
-    (fp_line (start 1.68 0.95) (end -1.68 0.95) (layer F.CrtYd) (width 0.05))
     (fp_circle (center 0 0) (end 0.4 0) (layer F.Adhes) (width 0.1))
+    (fp_line (start 1.68 0.95) (end -1.68 0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start 1.68 -0.95) (end 1.68 0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start -1.68 -0.95) (end 1.68 -0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start -1.68 0.95) (end -1.68 -0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start -0.258578 0.71) (end 0.258578 0.71) (layer F.SilkS) (width 0.12))
+    (fp_line (start -0.258578 -0.71) (end 0.258578 -0.71) (layer F.SilkS) (width 0.12))
+    (fp_line (start 1 0.6) (end -1 0.6) (layer F.Fab) (width 0.1))
+    (fp_line (start 1 -0.6) (end 1 0.6) (layer F.Fab) (width 0.1))
+    (fp_line (start -1 -0.6) (end 1 -0.6) (layer F.Fab) (width 0.1))
+    (fp_line (start -1 0.6) (end -1 -0.6) (layer F.Fab) (width 0.1))
     (fp_text user %R (at 0 0) (layer F.Fab)
       (effects (font (size 0.5 0.5) (thickness 0.08)))
     )
@@ -272,17 +272,17 @@
     (fp_text value 1nF (at 0 1.65) (layer F.Fab)
       (effects (font (size 1 1) (thickness 0.15)))
     )
-    (fp_line (start -1 0.6) (end -1 -0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start -1 -0.6) (end 1 -0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start 1 -0.6) (end 1 0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start 1 0.6) (end -1 0.6) (layer F.Fab) (width 0.1))
-    (fp_line (start -0.258578 -0.71) (end 0.258578 -0.71) (layer F.SilkS) (width 0.12))
-    (fp_line (start -0.258578 0.71) (end 0.258578 0.71) (layer F.SilkS) (width 0.12))
-    (fp_line (start -1.68 0.95) (end -1.68 -0.95) (layer F.CrtYd) (width 0.05))
-    (fp_line (start -1.68 -0.95) (end 1.68 -0.95) (layer F.CrtYd) (width 0.05))
-    (fp_line (start 1.68 -0.95) (end 1.68 0.95) (layer F.CrtYd) (width 0.05))
-    (fp_line (start 1.68 0.95) (end -1.68 0.95) (layer F.CrtYd) (width 0.05))
     (fp_circle (center 0 0) (end 0.4 0) (layer F.Adhes) (width 0.1))
+    (fp_line (start 1.68 0.95) (end -1.68 0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start 1.68 -0.95) (end 1.68 0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start -1.68 -0.95) (end 1.68 -0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start -1.68 0.95) (end -1.68 -0.95) (layer F.CrtYd) (width 0.05))
+    (fp_line (start -0.258578 0.71) (end 0.258578 0.71) (layer F.SilkS) (width 0.12))
+    (fp_line (start -0.258578 -0.71) (end 0.258578 -0.71) (layer F.SilkS) (width 0.12))
+    (fp_line (start 1 0.6) (end -1 0.6) (layer F.Fab) (width 0.1))
+    (fp_line (start 1 -0.6) (end 1 0.6) (layer F.Fab) (width 0.1))
+    (fp_line (start -1 -0.6) (end 1 -0.6) (layer F.Fab) (width 0.1))
+    (fp_line (start -1 0.6) (end -1 -0.6) (layer F.Fab) (width 0.1))
     (fp_text user %R (at 0 0) (layer F.Fab)
       (effects (font (size 0.5 0.5) (thickness 0.08)))
     )
@@ -295,6 +295,11 @@
       (scale (xyz 1 1 1))
       (rotate (xyz 0 0 0))
     )
+    (model ${KISYS3DMOD}/Resistor_SMD.3dshapes/R_0805_2012Metric.wrl
+      (at (xyz 0 0 0))
+      (scale (xyz 1 1 1))
+      (rotate (xyz 0 0 0))
+    )
   )
 
   (gr_text "Bogus component.\nNot in schematic." (at 161.163 89.281) (layer Cmts.User)
diff --git a/tests/test_plot/test_step.py b/tests/test_plot/test_step.py
index 9c192a36..4f62ee1e 100644
--- a/tests/test_plot/test_step.py
+++ b/tests/test_plot/test_step.py
@@ -47,3 +47,12 @@ def test_step_3():
     # Check all outputs are there
     ctx.expect_out_file(os.path.join(STEP_DIR, prj+'.step'))
     ctx.clean_up()
+
+
+def test_step_variant_1():
+    prj = 'kibom-variant_3'
+    ctx = context.TestContext('test_step_variant_1', prj, 'step_variant_1', '')
+    ctx.run()
+    # Check all outputs are there
+    ctx.expect_out_file(prj+'-3D.step')
+    ctx.clean_up()
diff --git a/tests/yaml_samples/step_variant_1.kibot.yaml b/tests/yaml_samples/step_variant_1.kibot.yaml
new file mode 100644
index 00000000..9c9a0da4
--- /dev/null
+++ b/tests/yaml_samples/step_variant_1.kibot.yaml
@@ -0,0 +1,17 @@
+# Example KiBot config file
+kibot:
+  version: 1
+
+variants:
+  - name: 'default'
+    comment: 'Default variant'
+    type: ibom
+    variants_blacklist: T2,T3
+
+outputs:
+  - name: 'step_default'
+    comment: "STEP w/variant"
+    type: step
+    options:
+      variant: default
+