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        <title>capacitive or inductive proximity</title>
        <description> halo.

I want to ask which is better capacitive or inductive proximity for use in the auto leveling bed?</description>
        <link>https://reprap.org/forum/read.php?1,530979,530979#msg-530979</link>
        <lastBuildDate>Mon, 07 Sep 2026 18:03:59 -0400</lastBuildDate>
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        <item>
            <guid>https://reprap.org/forum/read.php?1,530979,532292#msg-532292</guid>
            <title>Re: capacitive or inductive proximity</title>
            <link>https://reprap.org/forum/read.php?1,530979,532292#msg-532292</link>
            <description><![CDATA[ neither, i find using a dial indicator and manually leveling the bed just better.]]></description>
            <dc:creator>greggo</dc:creator>
            <category>General</category>
            <pubDate>Tue, 14 Jul 2015 02:34:50 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?1,530979,531882#msg-531882</guid>
            <title>Re: capacitive or inductive proximity</title>
            <link>https://reprap.org/forum/read.php?1,530979,531882#msg-531882</link>
            <description><![CDATA[ hi greggo.<br />
<br />
Which sensor is your favorite. capastive proximity, inductive or infrared?]]></description>
            <dc:creator>fikri</dc:creator>
            <category>General</category>
            <pubDate>Sun, 12 Jul 2015 22:49:46 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?1,530979,531869#msg-531869</guid>
            <title>Re: capacitive or inductive proximity</title>
            <link>https://reprap.org/forum/read.php?1,530979,531869#msg-531869</link>
            <description><![CDATA[ [<a href="http://www.amazon.com/LJ12A3-4-Z-Cylindrical-Inductive-Proximity-Detection/dp/B007Q811RU/ref=sr_1_1?ie=UTF8&amp;qid=1436751360&amp;sr=8-1&amp;keywords=npn+nc+proximity" target="_blank"  rel="nofollow">www.amazon.com</a>]<br />
<br />
i use this one, consistent with heat and moisture (live in FL) and it runs on 5v so no weird stepdown voltage divider sass]]></description>
            <dc:creator>greggo</dc:creator>
            <category>General</category>
            <pubDate>Sun, 12 Jul 2015 21:36:50 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?1,530979,531286#msg-531286</guid>
            <title>Re: capacitive or inductive proximity</title>
            <link>https://reprap.org/forum/read.php?1,530979,531286#msg-531286</link>
            <description><![CDATA[ may for the time being I would choose to use inductive proximity, because it is not affected by temperature and humidity conditions. it would be better to save costs in making my first 3D printer.<br />
<br />
I want to ask again. What if I use the bed only aluminum plate without giving heat-resistant masking tape. if it does nothing when printing?]]></description>
            <dc:creator>fikri</dc:creator>
            <category>General</category>
            <pubDate>Fri, 10 Jul 2015 18:58:15 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?1,530979,530991#msg-530991</guid>
            <title>Re: capacitive or inductive proximity</title>
            <link>https://reprap.org/forum/read.php?1,530979,530991#msg-530991</link>
            <description><![CDATA[ I went through them all: IR, modulated IR, ultrasonic, capacitive, inductive, and finally differential modulated IR. Capacitive and inductive can both be made to work quite well if you print on a metal bed, although capacitive tends to be sensitive to temperature and humidity. If you use a glass bed, then many inductive sensors won't work at all unless you have a steel plate under the glass. Capacitive sensors are still usable with a glass bed, subject to temperature and moisture sensitivity. Also if you use interchangeable glass beds as I do, they need to have exactly the same thickness and surface coating if any, otherwise the height will depend on which glass bed you use.<br />
<br />
Remember that the low cost proximity sensors you can buy are intended to detect if an object is there or not, not to provide a stable distance reference reprodicible to a few hundredths of a mm.<br />
<br />
I settled on differential modulated IR because it provides a height reference from the top surface of the glass and works with most print surfaces, with the caveat that when used with plain glass, it doesn't like a strongly reflecting surface under the glass. I am about to put these sensors into mass production. See [<a href="http://forums.reprap.org/read.php?94,519697" target="_blank"  rel="nofollow">forums.reprap.org</a>] for more.]]></description>
            <dc:creator>dc42</dc:creator>
            <category>General</category>
            <pubDate>Fri, 10 Jul 2015 04:34:59 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?1,530979,530979#msg-530979</guid>
            <title>capacitive or inductive proximity</title>
            <link>https://reprap.org/forum/read.php?1,530979,530979#msg-530979</link>
            <description><![CDATA[ halo.<br />
<br />
I want to ask which is better capacitive or inductive proximity for use in the auto leveling bed?]]></description>
            <dc:creator>fikri</dc:creator>
            <category>General</category>
            <pubDate>Fri, 10 Jul 2015 03:56:09 -0400</pubDate>
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