<p>The extruder is an MK8 derivative, <em>I think</em>.</p>

<p>After a <em>lot</em> of searching, the closest that I could find (with an assembly diagram) is this product which has more or less the same parts as yours (apart from the small black bolt and sleeve - used as the axis - which you don't have): <a href="https://rads.stackoverflow.com/amzn/click/com/B07BMLD646" rel="nofollow noreferrer" rel="nofollow noreferrer">[Improved Version] YOTINO Right Hand MK8 Remote Bowden Extruder Accessories 1.75mm/3mm Filament All Metal Remote Extruder Frame Block for Reprap 3D Printer Kossel Prusa</a>.</p>

<p>These are the parts:</p>

<blockquote>
  <p><a href="https://i.sstatic.net/5BTxF.jpg" rel="nofollow noreferrer" title="16 parts"><img src="https://i.sstatic.net/5BTxF.jpg" alt="16 parts" title="16 parts"></a></p>
</blockquote>

<p>This is the assembly process:</p>

<blockquote>
  <p><a href="https://i.sstatic.net/whaLA.jpg" rel="nofollow noreferrer" title="Assembly process"><img src="https://i.sstatic.net/whaLA.jpg" alt="Assembly process" title="Assembly process"></a></p>
</blockquote>

<p>This is the completed extruder:</p>

<blockquote>
  <p><a href="https://i.sstatic.net/YF1U6.jpg" rel="nofollow noreferrer" title="Completed extruder"><img src="https://i.sstatic.net/YF1U6.jpg" alt="Completed extruder" title="Completed extruder"></a></p>
</blockquote>

<hr>

<p>Also, whilst this is not the same beast, this link shows a detailed assembly which could prove useful as a cross reference: <a href="https://reprap.org/wiki/Extruder_assembly" rel="nofollow noreferrer">RepRapWiki - Extruder assembly</a></p>

<p>In addition, w.r.t the Blomker guide, there are a number of versions of the same guide that I've come across in the past:</p>

<ul>
<li><a href="http://www.robotdigg.com/upload/pdf/2a823cc8a8dcff9da99cce92710cc745.pdf" rel="nofollow noreferrer">Kossel Mini Build Guide by Blomker</a> - which has a very different extruder to the MK8</li>
<li><a href="https://gr33nonline.files.wordpress.com/2017/05/kossel-mini-instrution-by-sintron-technology_v2.pdf" rel="nofollow noreferrer">Kossel Mini Build Guide By Sintron</a> - which has a similar MK8 extruder but, rather unfortunately, no assembly details, only the finished article is shown, on page 58</li>
</ul>

CC BY-SA 4.0
2019-05-15T00:14:03.050Z
2019-05-15T08:01:49.350Z
2019-05-15T08:01:49.350Z
Greenonline
<p>Have a look at the image provided in this seller's part description. it probably says more than my words could (which would also only rely on images - your parts just looked like I saw them somewhere before). </p>

<p><a href="http://de.aliexpress.com/item/3D-printer-parts-right-hand-bowden-Extruder-kit-set-no-motor-compact-extruder-aluminum-alloy-for/32319995802.html" rel="nofollow noreferrer">3D printer parts right hand Bowden Extruder kit set no motor compact extruder aluminum alloy for</a></p>

<p><a href="https://i.sstatic.net/fsNaL.jpg" rel="nofollow noreferrer" title="Right hand Bowden Extruder kit"><img src="https://i.sstatic.net/fsNaL.jpg" alt="Right hand Bowden Extruder kit" title="Right hand Bowden Extruder kit"></a></p>

CC BY-SA 4.0
2018-08-13T15:32:16.950Z
Your link has died, unfortunately. If you provide the title (i.e. description) of the item as the link text, it would make it easier for products with dead links to be located afterwards... see my edit to illustrate what I mean.
Greenonline
CC BY-SA 3.0
2016-03-15T10:17:30.203Z
There are some more images from all sides when you scroll down the description
kamuro
CC BY-SA 4.0
2016-03-15T10:13:57.140Z
2018-08-13T15:33:24.753Z
2018-08-13T15:33:24.753Z
kamuro
<p>I'm building a Kossel Mini, and I'm stuck on the extruder motor holder.</p>

<p>My Kossel came without instructions, I was given a set of instructions by a friend (the "Kossel Build Guide" by Blomker industries). I also found some instructions on the net. However, my components are different from  those in the build guides.</p>

<p>The question is how these components fit together.  </p>

<p>I'm pretty certain the stepper motor should be connected to the big black components (labeled (1) and (4) in the picture). The 4 holes in these components correspond to openings in the stepper motor; and the stepper motors for the vertical carriages, were connected in a similar way to their respective holders.</p>

<p>The round thing, second from the left on the bottom, (labeled (2) in the picture) presumably goes on the axis of the stepper motor. Once again, a similar procedure was needed for the motors that will move the vertical carriages.</p>

<p>The screws on the right, labeled (3), are 1&nbsp;cm long and 3&nbsp;mm wide.</p>

<p>The other screws are 2&nbsp;cm long and 3&nbsp;mm wide.</p>

<p>The stepper motor is a Wantai Stepper Motor Model 42BYGHW811 .</p>

<p>I have e-mailed the company where I bought my kit and am awaiting their answer. Meanwhile I'm hoping to get some advice here.</p>

<p>Apparently the usual stepper motor for a Kossel Mini is Nema 17. Searching  on "42BYGHW811" I mostly find datasheets. Using "Nema 17 mount" or "Nema 17 mounting screws" as search terms, I find a lot of images with a component like (1). But nothing on how this and the other components should be put together for the motor holder for an extruder for the Kossel Mini.</p>

<p><a href="https://i.sstatic.net/l98L8.jpg" rel="nofollow noreferrer" title="Parts of the extruder"><img src="https://i.sstatic.net/l98L8.jpg" alt="Parts of the extruder" title="Parts of the extruder"></a></p>

CC BY-SA 3.0
2016-03-13T19:06:29.547Z
Searching further, it looks like part of this is for the extruder head: something like [this image](http://www.robotdigg.com/upload/201506/607/ed5b97a44d13a9399a61433d3d837745.gif).
S.L. Barth is on codidact.com
CC BY-SA 4.0
2019-05-15T07:52:12.803Z
Did you ever get a reply from the vendor? Also, a link to the product page would be very useful.
Greenonline
<extruder><motor><kossel>
How to build the extruder motor holder for the Kossel Mini
S.L. Barth is on codidact.com
# How to build the extruder motor holder for the Kossel Mini

(Asked by: username_0 on 2016-03-13)

I'm building a Kossel Mini, and I'm stuck on the extruder motor holder.

My Kossel came without instructions, I was given a set of instructions by a friend (the "Kossel Build Guide" by Blomker industries). I also found some instructions on the net. However, my components are different from those in the build guides.

The question is how these components fit together.

I'm pretty certain the stepper motor should be connected to the big black components (labeled (1) and (4) in the picture). The 4 holes in these components correspond to openings in the stepper motor; and the stepper motors for the vertical carriages, were connected in a similar way to their respective holders.

The round thing, second from the left on the bottom, (labeled (2) in the picture) presumably goes on the axis of the stepper motor. Once again, a similar procedure was needed for the motors that will move the vertical carriages.

The screws on the right, labeled (3), are 1 cm long and 3 mm wide.

The other screws are 2 cm long and 3 mm wide.

The stepper motor is a Wantai Stepper Motor Model 42BYGHW811 .

I have e-mailed the company where I bought my kit and am awaiting their answer. Meanwhile I'm hoping to get some advice here.

Apparently the usual stepper motor for a Kossel Mini is Nema 17. Searching on "42BYGHW811" I mostly find datasheets. Using "Nema 17 mount" or "Nema 17 mounting screws" as search terms, I find a lot of images with a component like (1). But nothing on how this and the other components should be put together for the motor holder for an extruder for the Kossel Mini.

[![Parts of the extruder](https://i.sstatic.net/l98L8.jpg "Parts of the extruder")](https://i.sstatic.net/l98L8.jpg "Parts of the extruder")

**Tags:** extruder, motor, kossel

> **Comments:**
> **username_0**: Searching further, it looks like part of this is for the extruder head: something like [this image](http://www.robotdigg.com/upload/201506/607/ed5b97a44d13a9399a61433d3d837745.gif).  
> **username_1**: Did you ever get a reply from the vendor? Also, a link to the product page would be very useful.  

---

## 2 answers

### Answer by username_2 on 2016-03-15. Score: 6 | Accepted answer

Have a look at the image provided in this seller's part description. it probably says more than my words could (which would also only rely on images - your parts just looked like I saw them somewhere before).

[3D printer parts right hand Bowden Extruder kit set no motor compact extruder aluminum alloy for](http://de.aliexpress.com/item/3D-printer-parts-right-hand-bowden-Extruder-kit-set-no-motor-compact-extruder-aluminum-alloy-for/32319995802.html)

[![Right hand Bowden Extruder kit](https://i.sstatic.net/fsNaL.jpg "Right hand Bowden Extruder kit")](https://i.sstatic.net/fsNaL.jpg "Right hand Bowden Extruder kit")

> **Comments:**
> **username_2**: There are some more images from all sides when you scroll down the description  
> **username_1**: Your link has died, unfortunately. If you provide the title (i.e. description) of the item as the link text, it would make it easier for products with dead links to be located afterwards... see my edit to illustrate what I mean.  

---

### Answer by username_1 on 2019-05-15. Score: 2

The extruder is an MK8 derivative, *I think*.

After a *lot* of searching, the closest that I could find (with an assembly diagram) is this product which has more or less the same parts as yours (apart from the small black bolt and sleeve - used as the axis - which you don't have): [[Improved Version] YOTINO Right Hand MK8 Remote Bowden Extruder Accessories 1.75mm/3mm Filament All Metal Remote Extruder Frame Block for Reprap 3D Printer Kossel Prusa](https://rads.stackoverflow.com/amzn/click/com/B07BMLD646).

These are the parts:

> [![16 parts](https://i.sstatic.net/5BTxF.jpg "16 parts")](https://i.sstatic.net/5BTxF.jpg "16 parts")

This is the assembly process:

> [![Assembly process](https://i.sstatic.net/whaLA.jpg "Assembly process")](https://i.sstatic.net/whaLA.jpg "Assembly process")

This is the completed extruder:

> [![Completed extruder](https://i.sstatic.net/YF1U6.jpg "Completed extruder")](https://i.sstatic.net/YF1U6.jpg "Completed extruder")

---

Also, whilst this is not the same beast, this link shows a detailed assembly which could prove useful as a cross reference: [RepRapWiki - Extruder assembly](https://reprap.org/wiki/Extruder_assembly)

In addition, w.r.t the Blomker guide, there are a number of versions of the same guide that I've come across in the past:

* [Kossel Mini Build Guide by Blomker](http://www.robotdigg.com/upload/pdf/2a823cc8a8dcff9da99cce92710cc745.pdf) - which has a very different extruder to the MK8
* [Kossel Mini Build Guide By Sintron](https://gr33nonline.files.wordpress.com/2017/05/kossel-mini-instrution-by-sintron-technology_v2.pdf) - which has a similar MK8 extruder but, rather unfortunately, no assembly details, only the finished article is shown, on page 58


---

