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        <title>Printing With An LCD Controller (prusa i3)</title>
        <description> hey everyone i new to 3d printing and i just bought a prusa i3 here: [www.3dprintersonlinestore.com] 

i bought it with a 25$ LCD controller and sd card slot. When i got everything i immediately assembled it but nothing would turn on (except a little power source light) unless i plugged it into the computer and then i was able to control it with the LCD screen but as soon as i unplugged the computer everything shut off.

 I don&#039;t know if this is standard or maybe i did something incorrectly but is there a way to use it without a computer?
thanks!</description>
        <link>https://reprap.org/forum/read.php?262,398047,398047#msg-398047</link>
        <lastBuildDate>Tue, 08 Sep 2026 23:23:45 -0400</lastBuildDate>
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        <item>
            <guid>https://reprap.org/forum/read.php?262,398047,398209#msg-398209</guid>
            <title>Re: Printing With An LCD Controller (prusa i3)</title>
            <link>https://reprap.org/forum/read.php?262,398047,398209#msg-398209</link>
            <description><![CDATA[ The RAMPS is supposed to power the arduino through diode D2 if it is installed.  However, my first RAMPS had some kind of flaw where the power didn't get through.  I solved the problem by connecting a DC barrel connector with a short wire to the power supply wire where it plugged into the RAMPS.   Then I just plugged the barrel connector into the arduino.  I tapped into the 5 AMP rail, and I triple checked that I had the polarity correct.]]></description>
            <dc:creator>jbernardis</dc:creator>
            <category>Printing</category>
            <pubDate>Sat, 23 Aug 2014 11:30:36 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?262,398047,398100#msg-398100</guid>
            <title>Re: Printing With An LCD Controller (prusa i3)</title>
            <link>https://reprap.org/forum/read.php?262,398047,398100#msg-398100</link>
            <description><![CDATA[ Which most likely means you don't have a power supply connected to the RAMPS, or you made the wrong connections, or you forgot to plug in the AC cable. I think it would not even print anything.]]></description>
            <dc:creator>alvinhochun</dc:creator>
            <category>Printing</category>
            <pubDate>Sat, 23 Aug 2014 04:36:08 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?262,398047,398047#msg-398047</guid>
            <title>Printing With An LCD Controller (prusa i3)</title>
            <link>https://reprap.org/forum/read.php?262,398047,398047#msg-398047</link>
            <description><![CDATA[ hey everyone i new to 3d printing and i just bought a prusa i3 here: [<a href="http://www.3dprintersonlinestore.com/diy-kit/replikeo-prusa-i3-rework-kit" target="_blank"  rel="nofollow">www.3dprintersonlinestore.com</a>] <br />
<br />
i bought it with a 25$ LCD controller and sd card slot. When i got everything i immediately assembled it but nothing would turn on (except a little power source light) unless i plugged it into the computer and then i was able to control it with the LCD screen but as soon as i unplugged the computer everything shut off.<br />
<br />
 I don't know if this is standard or maybe i did something incorrectly but is there a way to use it without a computer?<br />
thanks!]]></description>
            <dc:creator>ekul3e3</dc:creator>
            <category>Printing</category>
            <pubDate>Sat, 23 Aug 2014 00:27:54 -0400</pubDate>
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