diff --git a/lib/Slic3r/GUI/Plater.pm b/lib/Slic3r/GUI/Plater.pm
index f9703b893..59ba13a2c 100644
--- a/lib/Slic3r/GUI/Plater.pm
+++ b/lib/Slic3r/GUI/Plater.pm
@@ -49,6 +49,7 @@ sub new {
         bed_size print_center complete_objects extruder_clearance_radius skirts skirt_distance
     ));
     $self->{model} = Slic3r::Model->new;
+    $self->{print} = Slic3r::Print->new;
     $self->{objects} = [];
     
     $self->{canvas} = Wx::Panel->new($self, -1, wxDefaultPosition, CANVAS_SIZE, wxTAB_TRAVERSAL);
@@ -408,6 +409,8 @@ sub load_model_object {
         $o->add_instance(offset => [0,0]);
     }
     
+    $self->{print}->add_model_object($o);
+    
     $self->object_loaded($#{ $self->{objects} }, no_arrange => !$need_arrange);
 }
 
@@ -474,6 +477,7 @@ sub increase {
         scaling_factor  => $last_instance->scaling_factor,
         rotation        => $last_instance->rotation,
     );
+    $self->{print}->objects->[$obj_idx]->copies;
     $self->{list}->SetItem($obj_idx, 1, $model_object->instances_count);
     $self->arrange;
 }
@@ -712,10 +716,9 @@ sub export_gcode2 {
         threads->exit();
     } if $Slic3r::have_threads;
     
-    my $print = Slic3r::Print->new(
-        config          => $config,
-        extra_variables => $extra_variables,
-    );
+    my $print = $self->{print};
+    $print->config->apply($config);
+    $print->extra_variables($extra_variables);
     
     eval {
         $print->config->validate;
diff --git a/lib/Slic3r/Print.pm b/lib/Slic3r/Print.pm
index bfb7eaf1a..acc4dcce0 100644
--- a/lib/Slic3r/Print.pm
+++ b/lib/Slic3r/Print.pm
@@ -139,6 +139,7 @@ sub add_model_object {
         print               => $self,
         meshes              => [ map $meshes{$_}, 0..$#{$self->regions} ],
         copies              => [ @copies ],
+        input_bounding_box  => $bb1,
         size                => $scaled_bb->size,  # transformed size
         input_file          => $object->input_file,
         config_overrides    => $object->config,
diff --git a/lib/Slic3r/Print/Object.pm b/lib/Slic3r/Print/Object.pm
index 0942e5bfc..159953c5d 100644
--- a/lib/Slic3r/Print/Object.pm
+++ b/lib/Slic3r/Print/Object.pm
@@ -12,6 +12,7 @@ has 'input_file'        => (is => 'rw', required => 0);
 has 'meshes'            => (is => 'rw', default => sub { [] });  # by region_id
 has 'size'              => (is => 'rw', required => 1); # XYZ in scaled coordinates
 has 'copies'            => (is => 'rw', trigger => 1);  # in scaled coordinates
+has 'copies_shift'      => (is => 'rw');  # scaled coordinates to add to copies (to compensate for the alignment operated when creating the object but still preserving a coherent API for external callers)
 has 'layers'            => (is => 'rw', default => sub { [] });
 has 'support_layers'    => (is => 'rw', default => sub { [] });
 has 'config_overrides'  => (is => 'rw', default => sub { Slic3r::Config->new });