diff --git a/src/dev-utils/OrcaSlicer_profile_validator.cpp b/src/dev-utils/OrcaSlicer_profile_validator.cpp
index 67d0ba444d..56acbaa732 100644
--- a/src/dev-utils/OrcaSlicer_profile_validator.cpp
+++ b/src/dev-utils/OrcaSlicer_profile_validator.cpp
@@ -8,7 +8,11 @@
 #define NANOSVGRAST_IMPLEMENTATION
 #include "nanosvg/nanosvgrast.h"
 
+#include "libslic3r/BoundingBox.hpp"
 #include "libslic3r/GCode.hpp"
+#include "libslic3r/GCode/WipeTower.hpp"
+#include "libslic3r/GCode/WipeTowerEstimate.hpp"
+#include "libslic3r/Geometry.hpp"
 #include "libslic3r/Preset.hpp"
 #include "libslic3r/Config.hpp"
 #include "libslic3r/PresetBundle.hpp"
@@ -116,15 +120,45 @@ Vec2d printable_area_center(const DynamicPrintConfig &cfg)
     return 0.5 * (lo + hi);
 }
 
+// Put the prime tower where the GUI and CLI would before slicing. The config default (x 15, y 220)
+// lies off any bed shallower than the tower, and generation rejects an off-plate tower instead of
+// exporting it. Beside the centred cube, clear of the edge exclusion strips some beds carry, then
+// pulled inside the printable outline by the tower's own estimated footprint, with a few mm of
+// clearance so the conflict checker never sees the two touch.
+void place_wipe_tower(DynamicPrintConfig &cfg, const Vec2d &center)
+{
+    const auto *area = cfg.option<ConfigOptionPoints>("printable_area");
+    if (area == nullptr || area->values.size() < 3)
+        return;
+    const WipeTowerFootprint footprint = estimate_wipe_tower_footprint(cfg, resolve_wipe_tower_type(cfg), {0, 1}, cfg.opt_float("layer_height"), 10.);
+    if (footprint.depth < EPSILON)
+        return;
+    const double margin = WIPE_TOWER_MARGIN + footprint.brim_width;
+    // The position is the tower's own origin; a rotated tower extends from it in another
+    // direction, so place the rotated box's extents rather than the origin.
+    Slic3r::Polygon box({Point::new_scale(0., 0.), Point::new_scale(footprint.width, 0.), Point::new_scale(footprint.width, footprint.depth), Point::new_scale(0., footprint.depth)});
+    box.rotate(Geometry::deg2rad(cfg.opt_float("wipe_tower_rotation_angle")));
+    const BoundingBox local = get_extents(box);
+    const Vec2d       lo    = unscale(local.min);
+    const Vec2d       size  = unscale(local.max) - lo;
+    Vec2d             pos(center.x() + 5. + margin + 5. - lo.x(), center.y() - size.y() / 2. - lo.y());
+    box.translate(Point::new_scale(pos.x(), pos.y()));
+    const Vec2f move = WipeTower::move_box_inside_polygon(get_extents(box), Polygons{Polygon::new_scale(area->values)}, scaled<coord_t>(margin));
+    pos += move.cast<double>();
+    cfg.option<ConfigOptionFloats>("wipe_tower_x", true)->values = {pos.x()};
+    cfg.option<ConfigOptionFloats>("wipe_tower_y", true)->values = {pos.y()};
+}
+
 // Slice one centered cube that switches from filament 1 to filament 2 partway up, so exactly one
 // filament change fires, then export. The change drives the printer's own change_filament_gcode: on a
 // single-nozzle machine it rides the AMS prime tower (append_tcr), on a multi-nozzle machine it routes
 // through the nozzle swap (set_extruder / append_tcr2) - the engine picks the path from the printer's
 // topology, so one model covers both. An undefined placeholder in any shipped custom g-code throws
 // Slic3r::PlaceholderParserError from export.
-std::string slice_two_color_cube_and_export(const DynamicPrintConfig &cfg, bool is_bbl)
+std::string slice_two_color_cube_and_export(DynamicPrintConfig cfg, bool is_bbl)
 {
     const Vec2d center = printable_area_center(cfg);
+    place_wipe_tower(cfg, center);
     TriangleMesh m = make_cube(10, 10, 10);
     m.translate(float(center.x() - 5.), float(center.y() - 5.), 0.f);