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        <title>Gen 7 heat bed connector melted?</title>
        <description> Hi, I have a 1.3.1 gen 7 board. The heatbed lost connection and there was a burning smell from the board. After closer inspection I found the white plug has melted through and the pin isn&#039;t making connection anymore.. Is this a known problem or is it the 34 degrees C ambient temperature I am printing in causing heat issues with the board?

Suggestions for larger plug or more heat resistant plug?</description>
        <link>https://reprap.org/forum/read.php?181,178842,178842#msg-178842</link>
        <lastBuildDate>Mon, 07 Sep 2026 05:40:45 -0400</lastBuildDate>
        <generator>Phorum 5.2.23</generator>
        <item>
            <guid>https://reprap.org/forum/read.php?181,178842,214347#msg-214347</guid>
            <title>Re: Gen 7 heat bed connector melted?</title>
            <link>https://reprap.org/forum/read.php?181,178842,214347#msg-214347</link>
            <description><![CDATA[ @Terramir: Cheers. I went with the 5.08mm as per your / Traumflug's suggestion and have a safer electrical setup with 17.5 A screw terminal headers as s result.<br />
<br />
@Traumflug: You're quite right: the holes are indeed there (I'm embarassed I missed them). The only catch is that I needed to widen the diameter of the holes to accept the through-hole leads of my new headers. That was no big deal though - a 1.2mm drill bit did the trick in my case. Good job and thanks for your help!]]></description>
            <dc:creator>dslc</dc:creator>
            <category>Next Wave Electronics Working Group</category>
            <pubDate>Sat, 01 Jun 2013 17:57:22 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?181,178842,213223#msg-213223</guid>
            <title>Re: Gen 7 heat bed connector melted?</title>
            <link>https://reprap.org/forum/read.php?181,178842,213223#msg-213223</link>
            <description><![CDATA[ While the difference between 4 mm and 3.96 mm is neglibile, there should also be holes 0.2" inches (5.0 or 5.08 mm) apart. Look from the bottom side, they're close enough to the 4 mm spaced ones to be covered by the header.]]></description>
            <dc:creator>Traumflug</dc:creator>
            <category>Next Wave Electronics Working Group</category>
            <pubDate>Wed, 29 May 2013 06:34:45 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?181,178842,213113#msg-213113</guid>
            <title>Re: Gen 7 heat bed connector melted?</title>
            <link>https://reprap.org/forum/read.php?181,178842,213113#msg-213113</link>
            <description><![CDATA[ I put screw terminal on the heatbed output, I also did the standby power mod for the thermistors. Not my only problem is I sometimes have a lose connection on the hotend. I've used chocolate block terminals to connect it, but even they are getting so hot it is melting a bit... Still, with this new lot of ABS I have I seem to be able to print it at 20degrees less, so not having as many problems with that.]]></description>
            <dc:creator>Phizinza</dc:creator>
            <category>Next Wave Electronics Working Group</category>
            <pubDate>Tue, 28 May 2013 21:49:58 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?181,178842,212897#msg-212897</guid>
            <title>Re: Gen 7 heat bed connector melted?</title>
            <link>https://reprap.org/forum/read.php?181,178842,212897#msg-212897</link>
            <description><![CDATA[ gen7 1.3.1 has enough pad width that you could drill holes are a 5mm distance in order to put a screw terminal and replace the header in question.<br />
Also look into upgrading ( cutting traces and adding wires in order to have the thermistors be powered my 5V vsb :p<br />
terramir]]></description>
            <dc:creator>terramir</dc:creator>
            <category>Next Wave Electronics Working Group</category>
            <pubDate>Tue, 28 May 2013 12:01:05 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?181,178842,212869#msg-212869</guid>
            <title>Re: Gen 7 heat bed connector melted?</title>
            <link>https://reprap.org/forum/read.php?181,178842,212869#msg-212869</link>
            <description><![CDATA[ I have had the same problem with my Gen7 board and heated bed connector. I would like to replace the present headers with screw terminals, but can't find any of the correct pitch (3.96 mm). I can find screw terminals with 3.81 mm or 4 mm pitch - but not 3.96 mm. Obviously using a 4 mm pitch header in this context wouldn't be any problem, but it seems slightly perverse (and might cause problems if there were a larger number of contacts).<br />
<br />
I've tried Farnell and Radionics - digikey / mouser have too high postage costs / minimum orders.<br />
<br />
P.S. The alternative heated bed connectors suggested on the Wiki ( [<a href="http://reprap.org/wiki/Gen7_Board_1.4.1#Connectors" target="_blank"  rel="nofollow">reprap.org</a>] ) have the incorrect pitch. (I'll try to fix if I have time.)]]></description>
            <dc:creator>dslc</dc:creator>
            <category>Next Wave Electronics Working Group</category>
            <pubDate>Tue, 28 May 2013 10:29:31 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?181,178842,179605#msg-179605</guid>
            <title>Re: Gen 7 heat bed connector melted?</title>
            <link>https://reprap.org/forum/read.php?181,178842,179605#msg-179605</link>
            <description><![CDATA[ I used wires and a 12A spec two contact connector from radio shack, thinking about using screw terminals for the next board myself<br />
terramir]]></description>
            <dc:creator>terramir</dc:creator>
            <category>Next Wave Electronics Working Group</category>
            <pubDate>Sun, 27 Jan 2013 00:41:33 -0500</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?181,178842,179048#msg-179048</guid>
            <title>Re: Gen 7 heat bed connector melted?</title>
            <link>https://reprap.org/forum/read.php?181,178842,179048#msg-179048</link>
            <description><![CDATA[ Output from the board to the heat bed has melted. <br />
<br />
I'll have to get a screw terminal as I soldered it and it is clean. <br />
<br />
Thanks.]]></description>
            <dc:creator>Phizinza</dc:creator>
            <category>Next Wave Electronics Working Group</category>
            <pubDate>Thu, 24 Jan 2013 17:26:03 -0500</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?181,178842,178898#msg-178898</guid>
            <title>Re: Gen 7 heat bed connector melted?</title>
            <link>https://reprap.org/forum/read.php?181,178842,178898#msg-178898</link>
            <description><![CDATA[ Phizinza Wrote:<br />
-------------------------------------------------------<br />
&gt; After closer inspection I found the white<br />
&gt; plug has melted through<br />
<br />
Do you mean the connector for the power source or the output connector?<br />
In my case i use screw terminals. They should work up to 10A.]]></description>
            <dc:creator>Rodscher</dc:creator>
            <category>Next Wave Electronics Working Group</category>
            <pubDate>Thu, 24 Jan 2013 07:28:03 -0500</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?181,178842,178897#msg-178897</guid>
            <title>Re: Gen 7 heat bed connector melted?</title>
            <link>https://reprap.org/forum/read.php?181,178842,178897#msg-178897</link>
            <description><![CDATA[ This connector is very close to it's capabilities, so a bit dirt can make the connection poor enough to make it overheat.<br />
<br />
- Make sure the crimp connectors are clean and soldered to minimize electrical resistance.<br />
<br />
- If this still doesn't work, consider a screw terminal. The holes in the PCB are already there.]]></description>
            <dc:creator>Traumflug</dc:creator>
            <category>Next Wave Electronics Working Group</category>
            <pubDate>Thu, 24 Jan 2013 07:27:54 -0500</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?181,178842,178842#msg-178842</guid>
            <title>Gen 7 heat bed connector melted?</title>
            <link>https://reprap.org/forum/read.php?181,178842,178842#msg-178842</link>
            <description><![CDATA[ Hi, I have a 1.3.1 gen 7 board. The heatbed lost connection and there was a burning smell from the board. After closer inspection I found the white plug has melted through and the pin isn't making connection anymore.. Is this a known problem or is it the 34 degrees C ambient temperature I am printing in causing heat issues with the board?<br />
<br />
Suggestions for larger plug or more heat resistant plug?]]></description>
            <dc:creator>Phizinza</dc:creator>
            <category>Next Wave Electronics Working Group</category>
            <pubDate>Thu, 24 Jan 2013 01:31:17 -0500</pubDate>
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