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        <title>12v or a little more ? - Help</title>
        <description> Hi,
I bought this hardware ( [www.aliexpress.com] )
And i have a problem, my heatbed don&#039;t arrive at 110 degree.
When i put 14,5v in the hardware the heatbed arrive in 110.
My question is, the hardware will burn with 14,5v ?
What is the max voltage can i feed this hardware (ramps 1.4) ?
Tks</description>
        <link>https://reprap.org/forum/read.php?219,252564,252564#msg-252564</link>
        <lastBuildDate>Tue, 08 Sep 2026 21:01:31 -0400</lastBuildDate>
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            <guid>https://reprap.org/forum/read.php?219,252564,253682#msg-253682</guid>
            <title>Re: 12v or a little more ? - Help</title>
            <link>https://reprap.org/forum/read.php?219,252564,253682#msg-253682</link>
            <description><![CDATA[ Also, the regulator isn't well cooled on Arduino, and the RAMPS prevents air movement around it, so I wouldn't go anywhere near its rating. The regulator on the official Mega 2560 should be able to handle 14.5V though.]]></description>
            <dc:creator>Andrew Smith</dc:creator>
            <category>RAMPS Electronics</category>
            <pubDate>Thu, 10 Oct 2013 16:53:11 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?219,252564,253630#msg-253630</guid>
            <title>Re: 12v or a little more ? - Help</title>
            <link>https://reprap.org/forum/read.php?219,252564,253630#msg-253630</link>
            <description><![CDATA[ The official Arduino Mega 2560 R3 uses a NCP1117ST50T3G voltage regulator specified to handle 6-20V but if you got your Arduino from a Chinese factory then definitely look up the datasheet on the specific voltage regulator. My knockoff R3 can only handle 16V maximum!<br />
<br />
The voltage regulator is circled in the pic attached.<br />
<a href="https://farm4.staticflickr.com/3718/10192083015_e44fea4280.jpg" target="_blank"  rel="nofollow">Voltage Regulator</a>]]></description>
            <dc:creator>uMinded</dc:creator>
            <category>RAMPS Electronics</category>
            <pubDate>Thu, 10 Oct 2013 13:19:57 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?219,252564,252672#msg-252672</guid>
            <title>Re: 12v or a little more ? - Help</title>
            <link>https://reprap.org/forum/read.php?219,252564,252672#msg-252672</link>
            <description><![CDATA[ the biggest limit is the arduino, and if i remember right its close to 18v. at 14 i would say you are fine.]]></description>
            <dc:creator>dissidence</dc:creator>
            <category>RAMPS Electronics</category>
            <pubDate>Mon, 07 Oct 2013 20:07:33 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?219,252564,252564#msg-252564</guid>
            <title>12v or a little more ? - Help</title>
            <link>https://reprap.org/forum/read.php?219,252564,252564#msg-252564</link>
            <description><![CDATA[ Hi,<br />
I bought this hardware ( [<a href="http://www.aliexpress.com/item/1pcs-Mega-2560-R3-1pcs-RAMPS-1-4-Controller-5pcs-A4988-Stepper-Driver-Module-for-3D/1056502479.html" target="_blank"  rel="nofollow">www.aliexpress.com</a>] )<br />
And i have a problem, my heatbed don't arrive at 110 degree.<br />
When i put 14,5v in the hardware the heatbed arrive in 110.<br />
My question is, the hardware will burn with 14,5v ?<br />
What is the max voltage can i feed this hardware (ramps 1.4) ?<br />
Tks]]></description>
            <dc:creator>Rjmp</dc:creator>
            <category>RAMPS Electronics</category>
            <pubDate>Mon, 07 Oct 2013 14:46:28 -0400</pubDate>
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