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        <title>Where do gCode settings come from?</title>
        <description> Here is a snip of my gcode ; generated by Slic3r 1.0.0RC2 on 2015-02-01 at 18:45:23
; layer_height = 0.4
; perimeters = 3
; top_solid_layers = 3
; bottom_solid_layers = 3
; fill_density = 0.4
; perimeter_speed = 30
; infill_speed = 60
; travel_speed = 130
; nozzle_diameter = 0.5
; filament_diameter = 3
; extrusion_multiplier = 1
; perimeters extrusion width = 0.50mm
; infill extrusion width = 0.53mm
; solid infill extrusion width = 0.53mm
; top infill extrusion width = 0.53mm
; first layer extrusion width = 0.70mm
G21 ; set units to millimeters
M107
M104 S200 ; set temperature
G28 ; home all axes
G1 Z5 F5000 ; lift nozzle
M109 S200 ; wait for temperature to be reached
G90 ; use absolute coordinates
G92 E0....................................................
..................................................................

Of course there is a lot more in the code but my question lies in the snippet above......

Where do the above settings come from?  Take  M104 S200 and M109 S200

I understand that these set the temp but where do these settings come from?  I&#039;ve checked everywhere in Pronterface and in Slic3r and changed those settings but everytime I slice it and generate gcode they default to S200.  I&#039;ve also checked the firmware.

Any ideas?

Also, where are the other settings coming from?  Are they mathematical calculations based on some settings in PF or slic3r?

fletch367</description>
        <link>https://reprap.org/forum/read.php?4,464220,464220#msg-464220</link>
        <lastBuildDate>Sat, 11 Apr 2026 08:31:17 -0400</lastBuildDate>
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        <item>
            <guid>https://reprap.org/forum/read.php?4,464220,464229#msg-464229</guid>
            <title>Re: Where do gCode settings come from?</title>
            <link>https://reprap.org/forum/read.php?4,464220,464229#msg-464229</link>
            <description><![CDATA[ That did it.  When I downloaded the file from gitHub there wasn't an setup.exe or install file so I just made a shortcut from the existing location to the desktop.  Since that wasn't working I deleted that shortcut.  Moved the entire dowload file to C:\Program Files\ and made another shortcut to that location.  Now the settings from slic3r are working.  I set it to 230 and the gCode comes up M104 S230.<br />
<br />
Thanks for the tip!!!!<br />
<br />
fletch367]]></description>
            <dc:creator>fletch367</dc:creator>
            <category>Reprappers</category>
            <pubDate>Sun, 01 Feb 2015 21:12:17 -0500</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?4,464220,464227#msg-464227</guid>
            <title>Re: Where do gCode settings come from?</title>
            <link>https://reprap.org/forum/read.php?4,464220,464227#msg-464227</link>
            <description><![CDATA[ They come from within the slicer.   If you are making the changes in the slicer but they don't show up in your g code then you are doing something wrong.   Most likely you are not saving the settings,  or are saving them in a location where they are not expected to be.]]></description>
            <dc:creator>jbernardis</dc:creator>
            <category>Reprappers</category>
            <pubDate>Sun, 01 Feb 2015 20:38:50 -0500</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?4,464220,464220#msg-464220</guid>
            <title>Where do gCode settings come from?</title>
            <link>https://reprap.org/forum/read.php?4,464220,464220#msg-464220</link>
            <description><![CDATA[ Here is a snip of my gcode <pre class="bbcode">; generated by Slic3r 1.0.0RC2 on 2015-02-01 at 18:45:23
; layer_height = 0.4
; perimeters = 3
; top_solid_layers = 3
; bottom_solid_layers = 3
; fill_density = 0.4
; perimeter_speed = 30
; infill_speed = 60
; travel_speed = 130
; nozzle_diameter = 0.5
; filament_diameter = 3
; extrusion_multiplier = 1
; perimeters extrusion width = 0.50mm
; infill extrusion width = 0.53mm
; solid infill extrusion width = 0.53mm
; top infill extrusion width = 0.53mm
; first layer extrusion width = 0.70mm
G21 ; set units to millimeters
M107
M104 S200 ; set temperature
G28 ; home all axes
G1 Z5 F5000 ; lift nozzle
M109 S200 ; wait for temperature to be reached
G90 ; use absolute coordinates
G92 E0....................................................
..................................................................</pre>
<br />
Of course there is a lot more in the code but my question lies in the snippet above......<br />
<br />
Where do the above settings come from?  Take <pre class="bbcode"> M104 S200</pre> and <pre class="bbcode">M109 S200</pre>
<br />
I understand that these set the temp but where do these settings come from?  I've checked everywhere in Pronterface and in Slic3r and changed those settings but everytime I slice it and generate gcode they default to S200.  I've also checked the firmware.<br />
<br />
Any ideas?<br />
<br />
Also, where are the other settings coming from?  Are they mathematical calculations based on some settings in PF or slic3r?<br />
<br />
fletch367]]></description>
            <dc:creator>fletch367</dc:creator>
            <category>Reprappers</category>
            <pubDate>Sun, 01 Feb 2015 20:02:04 -0500</pubDate>
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