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Henry Snoek's Blog
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<article>
<h2><a href="https://www.henrysnoek.com/blog/2019/08/17/am8-aluminium-frame-build/">Anet A8 - AM8 Aluminium Frame Build</a></h2>
<time>Aug 17, 2019</time>
<div>
<p>The acrylic frame that came with my Anet A8 is not the most solid construction.
Adding a <a href="/blog/2018/05/06/a-year-with-the-anet-a8-3d-printer/">spool holder on top</a> of it doesn't make things better.</p>
<p>One of the bigger upgrades I could do is the AM8 metal frame build.
This upgrade will make a sturdy frame while re-using as many components as possible.
<!-- more --></p>
<h3 id="parts-needed">Parts needed</h3>
<ul>
<li><a href="https://www.thingiverse.com/thing:2657605">Reinforced AM8 frame parts</a></li>
<li><a href="https://www.thingiverse.com/thing:2263216">Other AM8 frame parts</a></li>
<li><a href="https://www.dold-mechatronik.de/AM8-Aluprofile-und-12-Winkel-20x20">Aluminium 20x20 profile and corners set</a></li>
</ul>
<p>Check the <a href="https://cdn.thingiverse.com/assets/a3/bd/fb/22/18/BOM.pdf">BOM</a> for screws, nuts and other materials you might need.</p>
<p>For connecting bolts to the extrusion I used M5 T nuts.</p>
<h3 id="missing-z-axis-corner-bracket">Missing Z-axis corner bracket</h3>
<p>The 2020 aluprofile set from dold-mechatronik is convenient though be aware the the corner brackets won't fit on the Z-axis connection.
For this I printed a few <a href="https://www.thingiverse.com/thing:3140856">Z corner brackets</a>.</p>
<h3 id="bowden-extruder-parts">Bowden extruder parts</h3>
<p>A while ago I have changed the standard extruder with a bowden extruder. I find it a lot easier to change the filament this way.
Luckily there's also a <a href="https://www.thingiverse.com/thing:2383009">bowden extruder mount for the AM8</a>. It re-uses most parts of the original extruder.
Only the <a href="https://www.thingiverse.com/thing:2501601">extruder button</a> is 3D printed.</p>
<h3 id="optional-parts">Optional parts</h3>
<p>I didn't print the case for the LCD as I don't need it; I'm using a Raspberry Pi with <a href="https://octoprint.org/">OctoPrint</a> and <a href="https://printoid.net/">Printoid</a>.
This way I can control and monitor prints from my smartphone. I can even watch the print in progress as the Pi Zero has a camera attached to it.</p>
<p><strong>Update:</strong> it's not recommended to use a Raspberry Pi Zero W with OctoPrint. Severe performance issues were observed, caused by the WiFi interface when bandwidth is utilized (e.g. the webcam is streamed), negatively impacting printing quality. More info in <a href="https://github.com/guysoft/OctoPi/issues/318#issuecomment-284762963">this github issue</a>.</p>
<p>Some other parts that have been upgraded/added during this build;</p>
<ul>
<li>Z-axis couplers; plum shaft</li>
<li>mainboard: Anet A8 board version 1.7; added fuse and 24 volt support</li>
<li>12v to 5v step down converter; power Pi Zero from power supply</li>
<li>8mm braided cable sleeve</li>
</ul>
<p>All 3d printed parts are listed in a <a href="https://www.thingiverse.com/snoek09/collections/am8">AM8 Thingiverse collection</a>.</p>
<p><img src="/images/am8-build/am8-build.jpg" alt="Anet A8 - AM8 build" title="" class="img-fluid" /></p>
</div>
</article>
<article>
<h2><a href="https://www.henrysnoek.com/blog/2018/08/11/anet-a8-firmware-upgrade/">Upgrading the Anet A8 firmware to Marlin 1.1.9</a></h2>
<time>Aug 11, 2018</time>
<div>
<p>The firmware of the Anet A8 3D printer is based on Marlin. This is an outdated version though.
One of the most important features it's missing, is a security check on the heating elements.
In my post about <a href="/blog/2018/05/06/a-year-with-the-anet-a8-3d-printer/">Anet A8 upgrades</a> you can
read what can happen to the heat bed connector.</p>
<p>
</div>
</article>
<article>
<h2><a href="https://www.henrysnoek.com/blog/2018/05/06/a-year-with-the-anet-a8-3d-printer/">A Year with the Anet A8 3D Printer</a></h2>
<time>May 6, 2018</time>
<div>
<p>Last year, after using 3D Hubs several times, I decided to take the jump; getting myself a 3D printer.
I decided to buy an Anet A8 for 2 reasons:</p>
<ul>
<li>it's cheap</li>
<li>lots of upgrades available</li>
</ul>
<p>
</div>
</article>
<article>
<h2><a href="https://www.henrysnoek.com/blog/2017/03/05/convert-to-kotlin/">Setting up Kotlin in Android Studio</a></h2>
<time>Mar 5, 2017</time>
<div>
<p><a href="/blog/2017/02/22/revisiting-android-development/">Last time</a> I made a simple
<a href="https://github.com/snoek09/SpotifyAndroidSdkExample">Android app using the Spotify SDK</a>.
Now, it's time to convert this to <a href="http://kotlinlang.org">Kotlin</a> code.
Kotlin is a statically-typed programming language that runs on the Java Virtual Machine.</p>
</div>
</article>
<article>
<h2><a href="https://www.henrysnoek.com/blog/2017/02/22/revisiting-android-development/">Revisiting Android Development</a></h2>
<time>Feb 22, 2017</time>
<div>
<p>In the summer of 2012 I worked on the Ziggo TV Android app. That's almost 5 years ago.
Recently I've taken some first steps to get back into developing a new Android app.
I'm glad to see some nice changes in Android development:</p>
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