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New extrusion math

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This commit is contained in:
Alessandro Ranellucci
2011-10-01 18:10:33 +02:00
parent ea88cad8e3
commit 55f2247cd9
4 changed files with 13 additions and 10 deletions
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7
lib/Slic3r/Extruder.pm
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@@ -87,10 +87,9 @@ sub extrude {
# calculate how much filament to drive into the extruder
# to get the desired amount of extruded plastic
my $e = $line->a->distance_to($line->b) * $Slic3r::resolution
* $Slic3r::flow_width
* $Slic3r::layer_height
/ (($Slic3r::filament_diameter ** 2) * PI)
/ $Slic3r::filament_packing_density;
* (($Slic3r::nozzle_diameter**2) / ($Slic3r::filament_diameter ** 2))
* $Slic3r::thickness_ratio
* $Slic3r::filament_packing_density;
$gcode .= $self->G1($line->b, undef, $e, $description);
}

2
lib/Slic3r/Print.pm
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@@ -165,7 +165,7 @@ sub export_gcode {
# write start commands to file
# TODO: this must be customizable by user
print $fh "G28 ; home all axes\n";
printf $fh "M109 S%d ; wait for temperature to be reached\n", $Slic3r::temperature;
printf $fh "M104 S%d ; wait for temperature to be reached\n", $Slic3r::temperature;
print $fh "G90 ; use absolute coordinates\n";
print $fh "G21 ; set units to millimeters\n";
if ($Slic3r::use_relative_e_distances) {