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        <title>Stepper Motor Adjustment</title>
        <description> In research of the RepRap Mendel, I found the resolution of this printer to be 100 microns. How many cycles of the stepper motor are required to reach this resolution, and can this be reduced through the software to improve the resolution of the device?</description>
        <link>https://reprap.org/forum/read.php?160,838872,838872#msg-838872</link>
        <lastBuildDate>Sat, 16 May 2026 14:00:04 -0400</lastBuildDate>
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            <guid>https://reprap.org/forum/read.php?160,838872,839592#msg-839592</guid>
            <title>Re: Stepper Motor Adjustment</title>
            <link>https://reprap.org/forum/read.php?160,838872,839592#msg-839592</link>
            <description><![CDATA[ @LVerh <br />
<br />
X or Y steps/mm = {motor steps per rev * driver microstep} / {belt pitch * pulley number of teeth)<br />
<br />
Most reprap steppers are 200 steps/revolution (1.8 degree)<br />
Most use 16 microstep<br />
belt pitch is 2mm<br />
pully with 20 teeth<br />
<br />
(200 * 16) / (2 * 20) = 80.0 steps/mm<br />
<br />
so theoretical resolution of 1/80mm     ie 0.0125 per step. But you can't get accurate positioning with microstepping. Use a max of 1/4 micro stepping for accurate positioning.   <br />
<br />
no this cannot be improved with software, you need to change the hardware<br />
<br />
use 0.9 degree steppers, or geared steppers<br />
use pulleys with less teeth eg 16]]></description>
            <dc:creator>Dust</dc:creator>
            <category>Stepper Motors, Servo Motors, DC Motors</category>
            <pubDate>Sun, 25 Nov 2018 05:08:56 -0500</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?160,838872,839586#msg-839586</guid>
            <title>Re: Stepper Motor Adjustment</title>
            <link>https://reprap.org/forum/read.php?160,838872,839586#msg-839586</link>
            <description><![CDATA[ Replacing the steppers with 0.9° versions would double up the resolution.<br />
Using smaller GT2-pulleys where possible would help, too ( 16 tooth vs 20 tooth )<br />
Or leadscrews with finer pitch.<br />
Then there are stepper drivers with upto 128 microstepping vs 16 microsteps, but that's no reliable improvement.<br />
You have to make sure, your mechanics run without play, backlash or binding to help steppers to really reach ( and hold ) these fine microsteps.]]></description>
            <dc:creator>o_lampe</dc:creator>
            <category>Stepper Motors, Servo Motors, DC Motors</category>
            <pubDate>Sun, 25 Nov 2018 03:14:24 -0500</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?160,838872,838872#msg-838872</guid>
            <title>Stepper Motor Adjustment</title>
            <link>https://reprap.org/forum/read.php?160,838872,838872#msg-838872</link>
            <description><![CDATA[ In research of the RepRap Mendel, I found the resolution of this printer to be 100 microns. How many cycles of the stepper motor are required to reach this resolution, and can this be reduced through the software to improve the resolution of the device?]]></description>
            <dc:creator>LVerh</dc:creator>
            <category>Stepper Motors, Servo Motors, DC Motors</category>
            <pubDate>Sun, 18 Nov 2018 11:50:22 -0500</pubDate>
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