New --start-gcode and --end-gcode options. #12

README.markdown

@@ -46,12 +46,12 @@ Slic3r current features are:
 * center print around bed center point;
 * multiple solid layers near horizontal external surfaces;
 * ability to scale, rotate and multiply input object;
+* customizable initial and final GCODE (using command line only);
 * use different speed for bottom layer and perimeters.
 
 Roadmap includes the following goals:
 
 * output some statistics;
-* allow the user to customize initial and final GCODE commands;
 * support material for internal perimeters;
 * cool;
 * other fill patterns.
@@ -83,10 +83,9 @@ The author is Alessandro Ranellucci (me).
         --save <file>       Save configuration to the specified file
         --load <file>       Load configuration from the specified file
         -o, --output        File to output gcode to (default: <inputfile>.gcode)
-
         
       Printer options:
-        --nozzle-diameter   Diameter of nozzle in mm (default: 0.55)
+        --nozzle-diameter   Diameter of nozzle in mm (default: 0.5)
         --print-center      Coordinates of the point to center the print around 
                             (default: 100,100)
         --use-relative-e-distances
@@ -98,7 +97,7 @@ The author is Alessandro Ranellucci (me).
         --filament-diameter Diameter of your raw filament (default: 3)
         --filament-packing-density
                             Ratio of the extruded volume over volume pushed 
-                            into the extruder (default: 0.85)
+                            into the extruder (default: 1)
         --temperature       Extrusion temperature (default: 200)
         
       Speed options:
@@ -112,6 +111,9 @@ The author is Alessandro Ranellucci (me).
         
       Accuracy options:
         --layer-height      Layer height in mm (default: 0.4)
+        --high-res-perimeters
+                            Print perimeters at half layer height to get surface accuracy
+                            (default: disabled)
       
       Print options:
         --perimeters        Number of perimeters/horizontal skins (range: 1+, 
@@ -120,6 +122,11 @@ The author is Alessandro Ranellucci (me).
                             (range: 1+, default: 3)
         --fill-density      Infill density (range: 0-1, default: 0.4)
         --fill-angle        Infill angle in degrees (range: 0-90, default: 0)
+        --start-gcode       Load initial gcode from the supplied file. This will overwrite 
+                            the default command (home all axes [G28]).
+        --end-gcode         Load final gcode from the supplied file. This will overwrite 
+                            the default commands (turn off temperature [M104 S0],
+                            home X axis [G28 X], disable motors [M84]).
       
       Retraction options:
         --retract-length    Length of retraction in mm when pausing extrusion 
@@ -129,7 +136,7 @@ The author is Alessandro Ranellucci (me).
                             Additional amount of filament in mm to push after
                             compensating retraction (default: 0)
         --retract-before-travel
-                            Only retract before travel moves of this length (default: 1)
+                            Only retract before travel moves of this length (default: 2)
        
        Skirt options:
         --skirts            Number of skirts to draw (default: 1)
@@ -143,3 +150,4 @@ The author is Alessandro Ranellucci (me).
         --multiply-y        Number of items along Y axis (1+, default: 1)
         --multiply-distance Distance in mm between copies (default: 6)
         
+

lib/Slic3r.pm

@@ -38,6 +38,7 @@ our $z_offset = 0;
 # filament options
 our $filament_diameter  = 3;    # mm
 our $filament_packing_density = 1;
+our $temperature        = 200;
 
 # speed options
 our $print_feed_rate            = 60;   # mm/sec
@@ -59,7 +60,12 @@ our $bridge_overlap     = 3;    # mm
 our $fill_type          = 'rectilinear';
 our $fill_density       = 0.4;  # 1 = 100%
 our $fill_angle         = 0;
-our $temperature        = 200;
+our $start_gcode = "G28 ; home all axes";
+our $end_gcode = <<"END";
+M104 S0 ; turn off temperature
+G28 X0  ; home X axis
+M84     ; disable motors
+END
 
 # retraction options
 our $retract_length         = 1;    # mm

lib/Slic3r/Config.pm

@@ -86,6 +86,18 @@ our $Options = {
         label   => 'Fill angle (°)',
         type    => 'i',
     },
+    'start_gcode' => {
+        label   => 'Start GCODE',
+        type    => 's',
+        serialize   => sub { join '\n', split /\R+/, $_[0] },
+        deserialize => sub { join "\n", split /\\n/, $_[0] },
+    },
+    'end_gcode' => {
+        label   => 'End GCODE',
+        type    => 's',
+        serialize   => sub { join '\n', split /\R+/, $_[0] },
+        deserialize => sub { join "\n", split /\\n/, $_[0] },
+    },
     
     # retraction options
     'retract_length' => {
@@ -179,6 +191,25 @@ sub load {
     close $fh;
 }
 
+sub validate_cli {
+    my $class = shift;
+    my ($opt) = @_;
+    
+    for (qw(start end)) {
+        if (defined $opt->{$_."_gcode"}) {
+            if ($opt->{$_."_gcode"} eq "") {
+                set($_."_gcode", "");
+            } else {
+                die "Invalid value for --${_}-gcode: file does not exist"
+                    if !-e $opt->{$_."_gcode"};
+                open my $fh, "<", $opt->{$_."_gcode"};
+                set($_."_gcode", do { local $/; <$fh> });
+                close $fh;
+            }
+        }
+    }
+}
+
 sub validate {
     my $class = shift;
 

lib/Slic3r/Print.pm

@@ -325,9 +325,8 @@ sub export_gcode {
         or die "Failed to open $file for writing\n";
     
     # write start commands to file
-    # TODO: this must be customizable by user
-    print  $fh "G28 ; home all axes\n";
     printf $fh "M104 S%d ; wait for temperature to be reached\n", $Slic3r::temperature;
+    print  $fh "$Slic3r::start_gcode\n";
     print  $fh "G90 ; use absolute coordinates\n";
     print  $fh "G21 ; set units to millimeters\n";
     if ($Slic3r::use_relative_e_distances) {
@@ -375,10 +374,7 @@ sub export_gcode {
     }
     
     # write end commands to file
-    # TODO: this must be customizable by user
-    print $fh "M104 S0 ; turn off temperature\n";
-    print $fh "G28 X0 ; home X axis\n";
-    print $fh "M84 ; disable motors\n";
+    print $fh "$Slic3r::end_gcode\n";
     
     # close our gcode file
     close $fh;

slic3r.pl

@@ -49,6 +49,8 @@ GetOptions(
     'fill-type=s'           => \$Slic3r::fill_type,
     'fill-density=f'        => \$Slic3r::fill_density,
     'fill-angle=i'          => \$Slic3r::fill_angle,
+    'start-gcode=s'         => \$opt{start_gcode},
+    'end-gcode=s'           => \$opt{end_gcode},
     
     # retraction options
     'retract-length=f'          => \$Slic3r::retract_length,
@@ -74,6 +76,9 @@ if ($opt{load}) {
     Slic3r::Config->load($opt{load});
 }
 
+# validate command line options
+Slic3r::Config->validate_cli(\%opt);
+
 # validate configuration
 Slic3r::Config->validate;
 
@@ -153,6 +158,11 @@ Usage: slic3r.pl [ OPTIONS ] file.stl
                         (range: 1+, default: $Slic3r::solid_layers)
     --fill-density      Infill density (range: 0-1, default: $Slic3r::fill_density)
     --fill-angle        Infill angle in degrees (range: 0-90, default: $Slic3r::fill_angle)
+    --start-gcode       Load initial gcode from the supplied file. This will overwrite
+                        the default command (home all axes [G28]).
+    --end-gcode         Load final gcode from the supplied file. This will overwrite 
+                        the default commands (turn off temperature [M104 S0],
+                        home X axis [G28 X], disable motors [M84]).
   
   Retraction options:
     --retract-length    Length of retraction in mm when pausing extrusion