<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/">
    <channel>
        <title>Hot End Direct Feed Extruder Drive</title>
        <description> After switching to the E3D V6 hotend, I fitted a Bowden connection to the standard Ormerod extruder drive.  This started proving unreliable, so I searched for a direct way of mounting the extruder over the hot end.  I opted for the Zesty Nimble, purely because of the weight issue which is advertised as 37grams.  Although I originally thought it was a bit pricey (+£15 postage from Australia) especially if it didn&#039;t work out !  It has proved an excellent investment.  The support from Lykle at Zesty Technologies has been amazing in designing the adapter (FOC) [www.thingiverse.com]
 As for reliability...only time will tell but I really recommend this as an alternative to the Bowden extruder drive.
[attachment 97563 ZestyNimbleonOrmerod2.jpg]</description>
        <link>https://reprap.org/forum/read.php?340,785357,785357#msg-785357</link>
        <lastBuildDate>Sun, 06 Sep 2026 08:28:22 -0400</lastBuildDate>
        <generator>Phorum 5.2.23</generator>
        <item>
            <guid>https://reprap.org/forum/read.php?340,785357,785489#msg-785489</guid>
            <title>Re: Hot End Direct Feed Extruder Drive</title>
            <link>https://reprap.org/forum/read.php?340,785357,785489#msg-785489</link>
            <description><![CDATA[ We just uploaded a short video of a Nimble printing with X60.<br />
<br />
X60 is one of the most flexible filaments available and the Nimble prints it fine. <br />
This is the first print I tried with X60, so no tuning or optimising is done just yet. Only had a small sample so next it to buy a spool and start tweaking.<br />
<br />
[<a href="https://youtu.be/S2Cf3KeKp88" target="_blank"  rel="nofollow">youtu.be</a>]<br />
<br />
Also, here is a photo of two blocks I printed. The left one is Carbonfil, one of the hardest filaments to print. The right one is the X60 filament. All printed with the same printer, just changed the temp and speed settings. Goes to show that the Nimble is a very flexible extruder (pun intended).<br />
[attachment 97581 twofilaments.png]]]></description>
            <dc:creator>Lykle</dc:creator>
            <category>Ormerod</category>
            <pubDate>Tue, 29 Aug 2017 05:45:14 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?340,785357,785472#msg-785472</guid>
            <title>Re: Hot End Direct Feed Extruder Drive</title>
            <link>https://reprap.org/forum/read.php?340,785357,785472#msg-785472</link>
            <description><![CDATA[ ...ditto to all above...thanks guys.  As you say Erik, my main concern was the rotational force outwards on the hot end from the natural spring of the drive cable.  So I settled on mounting the stepper (temporarily) high so to induce a small positive force as the height of the print increases to keep the nozzle at 90ᵒ to the bed.  This works well and I'll print out a mounting bracket for the motor to finish the mod.  I can now start printing flexible filaments which was always pain trying to push it down a PTFE tube.]]></description>
            <dc:creator>PlasticPogle</dc:creator>
            <category>Ormerod</category>
            <pubDate>Tue, 29 Aug 2017 03:30:29 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?340,785357,785455#msg-785455</guid>
            <title>Re: Hot End Direct Feed Extruder Drive</title>
            <link>https://reprap.org/forum/read.php?340,785357,785455#msg-785455</link>
            <description><![CDATA[ @omerod168<br />
<br />
Both Lykle and myself that developed the Nimble use the Duet board, no issues at all, just need to make sure you have settings set correctly which we have well documented, we also hapily help people that get stuck with the docs.<br />
<br />
[<a href="http://zestytechnology.readthedocs.io/en/latest/" target="_blank"  rel="nofollow">zestytechnology.readthedocs.io</a>]]]></description>
            <dc:creator>briangilbert</dc:creator>
            <category>Ormerod</category>
            <pubDate>Mon, 28 Aug 2017 19:44:11 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?340,785357,785431#msg-785431</guid>
            <title>Re: Hot End Direct Feed Extruder Drive</title>
            <link>https://reprap.org/forum/read.php?340,785357,785431#msg-785431</link>
            <description><![CDATA[ You will have to use lower E acceleration when using a large gear ratio. However, the main reason for using a large E acceleration is to get high retraction speeds; but as you need very little retraction when using a remote direct drive extruder, that shouldn't matter.]]></description>
            <dc:creator>dc42</dc:creator>
            <category>Ormerod</category>
            <pubDate>Mon, 28 Aug 2017 15:14:48 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?340,785357,785408#msg-785408</guid>
            <title>Re: Hot End Direct Feed Extruder Drive</title>
            <link>https://reprap.org/forum/read.php?340,785357,785408#msg-785408</link>
            <description><![CDATA[ How stiff is the cable compared to the  PTFE tube?, the variation in down pressure on the Ormerod's hinged hotend is know to give the illusion of a bulged glass plate <br />
<br />
And also the gear ratio of 30:1, do you find this to be a problem?, I seem to remember dc42 noting something about 10:1 would be max for the Duet (mass to higher speed, jerk speed, acceleration)    <br />
<br />
Erik]]></description>
            <dc:creator>ormerod168</dc:creator>
            <category>Ormerod</category>
            <pubDate>Mon, 28 Aug 2017 11:01:48 -0400</pubDate>
        </item>
        <item>
            <guid>https://reprap.org/forum/read.php?340,785357,785357#msg-785357</guid>
            <title>Hot End Direct Feed Extruder Drive</title>
            <link>https://reprap.org/forum/read.php?340,785357,785357#msg-785357</link>
            <description><![CDATA[ After switching to the E3D V6 hotend, I fitted a Bowden connection to the standard Ormerod extruder drive.  This started proving unreliable, so I searched for a direct way of mounting the extruder over the hot end.  I opted for the Zesty Nimble, purely because of the weight issue which is advertised as 37grams.  Although I originally thought it was a bit pricey (+£15 postage from Australia) especially if it didn't work out !  It has proved an excellent investment.  The support from Lykle at Zesty Technologies has been amazing in designing the adapter (FOC) [<a href="https://www.thingiverse.com/thing:2473520" target="_blank"  rel="nofollow">www.thingiverse.com</a>]<br />
 As for reliability...only time will tell but I really recommend this as an alternative to the Bowden extruder drive.<br />
[attachment 97563 ZestyNimbleonOrmerod2.jpg]]]></description>
            <dc:creator>PlasticPogle</dc:creator>
            <category>Ormerod</category>
            <pubDate>Mon, 28 Aug 2017 03:12:17 -0400</pubDate>
        </item>
    </channel>
</rss>
