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

[{'answer_id': 758, 'author': 'kamuro', 'author_id': 168, 'author_profile': 'https://3dprinting.stackexchange.com/users/168', 'pm_score': 4, 'selected': True, 'text': '<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>\n\n<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>\n\n<p><a href="https://i.stack.imgur.com/fsNaL.jpg" rel="nofollow noreferrer" title="Right hand Bowden Extruder kit"><img src="https://i.stack.imgur.com/fsNaL.jpg" alt="Right hand Bowden Extruder kit" title="Right hand Bowden Extruder kit"></a></p>\n'}, {'answer_id': 9943, 'author': 'Greenonline', 'author_id': 4762, 'author_profile': 'https://3dprinting.stackexchange.com/users/4762', 'pm_score': 1, 'selected': False, 'text': '<p>The extruder is an MK8 derivative, <em>I think</em>.</p>\n\n<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>\n\n<p>These are the parts:</p>\n\n<blockquote>\n  <p><a href="https://i.stack.imgur.com/5BTxF.jpg" rel="nofollow noreferrer" title="16 parts"><img src="https://i.stack.imgur.com/5BTxF.jpg" alt="16 parts" title="16 parts"></a></p>\n</blockquote>\n\n<p>This is the assembly process:</p>\n\n<blockquote>\n  <p><a href="https://i.stack.imgur.com/whaLA.jpg" rel="nofollow noreferrer" title="Assembly process"><img src="https://i.stack.imgur.com/whaLA.jpg" alt="Assembly process" title="Assembly process"></a></p>\n</blockquote>\n\n<p>This is the completed extruder:</p>\n\n<blockquote>\n  <p><a href="https://i.stack.imgur.com/YF1U6.jpg" rel="nofollow noreferrer" title="Completed extruder"><img src="https://i.stack.imgur.com/YF1U6.jpg" alt="Completed extruder" title="Completed extruder"></a></p>\n</blockquote>\n\n<hr>\n\n<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>\n\n<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>\n\n<ul>\n<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>\n<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>\n</ul>\n'}]
['https://3dprinting.stackexchange.com/questions/743', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/65/']