<p>We currently have quite a few tags about filament:</p>

<ul>
<li><a href="https://3dprinting.stackexchange.com/questions/tagged/filament" class="post-tag" title="show questions tagged &#39;filament&#39;" rel="tag">filament</a></li>
<li><a href="https://3dprinting.stackexchange.com/questions/tagged/plastic-filament" class="post-tag" title="show questions tagged &#39;plastic-filament&#39;" rel="tag">plastic-filament</a></li>
<li><a href="https://3dprinting.stackexchange.com/questions/tagged/thermoplastic-filament" class="post-tag" title="show questions tagged &#39;thermoplastic-filament&#39;" rel="tag">thermoplastic-filament</a></li>
<li>etc.</li>
</ul>

<p>I feel like we need to clean these up and make clear what we'll use each tag for.</p>

<p>Thoughts?</p>

[{'answer_id': 61, 'author': 'Eric Johnson', 'author_id': 43, 'author_profile': 'https://3dprinting.meta.stackexchange.com/users/43', 'pm_score': 2, 'selected': False, 'text': '<p>I see a form of hierarchy that could be used.</p>\n\n<p>Depending on the question a higher level tag could be used or a more specific one for specific problems (or both tags even).</p>\n\n<ul>\n<li>Filament\n\n<ul>\n<li>Plastic Filament\n\n<ul>\n<li>ABS</li>\n<li>PLA</li>\n</ul></li>\n<li>Water Soluble\n\n<ul>\n<li>PVA</li>\n</ul></li>\n<li>Flexible\n\n<ul>\n<li>NinjaFlex and similar</li>\n<li>TPU</li>\n</ul></li>\n<li>Conductive</li>\n<li>Metalic</li>\n</ul></li>\n<li>Resin</li>\n<li>Powder</li>\n<li>Full Color</li>\n</ul>\n\n<p>Feel free to edit to add more types</p>\n'}, {'answer_id': 62, 'author': 'Tom van der Zanden', 'author_id': 26, 'author_profile': 'https://3dprinting.meta.stackexchange.com/users/26', 'pm_score': 3, 'selected': False, 'text': '<p>All filament used in 3D printing is thermoplastic filament, so plastic-filament and thermoplastic-filament are redundant.</p>\n'}, {'answer_id': 320, 'author': 'Trish', 'author_id': 8884, 'author_profile': 'https://3dprinting.meta.stackexchange.com/users/8884', 'pm_score': 2, 'selected': False, 'text': '<p>I bump this and propose the radical method:</p>\n\n<p>We only need ONE <a href="https://3dprinting.stackexchange.com/questions/tagged/filament" class="post-tag" title="show questions tagged &#39;filament&#39;" rel="tag">filament</a> tag and then any tags for specific material (e.g.<a href="https://3dprinting.stackexchange.com/questions/tagged/pla" class="post-tag" title="show questions tagged &#39;pla&#39;" rel="tag">pla</a> <a href="https://3dprinting.stackexchange.com/questions/tagged/abs" class="post-tag" title="show questions tagged &#39;abs&#39;" rel="tag">abs</a> <a href="https://3dprinting.stackexchange.com/questions/tagged/petg" class="post-tag" title="show questions tagged &#39;petg&#39;" rel="tag">petg</a> <a href="https://3dprinting.stackexchange.com/questions/tagged/pva" class="post-tag" title="show questions tagged &#39;pva&#39;" rel="tag">pva</a> <a href="https://3dprinting.stackexchange.com/questions/tagged/tpu" class="post-tag" title="show questions tagged &#39;tpu&#39;" rel="tag">tpu</a> <a href="https://3dprinting.stackexchange.com/questions/tagged/pc" class="post-tag" title="show questions tagged &#39;pc&#39;" rel="tag">pc</a>) groups that have specific properties (e.g. <a href="https://3dprinting.stackexchange.com/questions/tagged/flexible-filament" class="post-tag" title="show questions tagged &#39;flexible-filament&#39;" rel="tag">flexible-filament</a> <a href="https://3dprinting.stackexchange.com/questions/tagged/conductive-filament" class="post-tag" title="show questions tagged &#39;conductive-filament&#39;" rel="tag">conductive-filament</a>)</p>\n\n<ul>\n<li><p>The difference between <a href="https://3dprinting.stackexchange.com/questions/tagged/thermoplastic-filament" class="post-tag" title="show questions tagged &#39;thermoplastic-filament&#39;" rel="tag">thermoplastic-filament</a> and <a href="https://3dprinting.stackexchange.com/questions/tagged/plastic-filament" class="post-tag" title="show questions tagged &#39;plastic-filament&#39;" rel="tag">plastic-filament</a> in use is nonexistant and both are pretty much identical to filament in the current use - it is rather random which one gets used, in many cases more than one is used.</p></li>\n<li><p>There is no filament that can be used in 3D printing that is not a thermoplastic, as the method to re-shape the filament via heat demands a thermoplastic.</p></li>\n<li><p>While there are clearly more plastics than thermoplastics, non thermoplastic plastics are not useable for 3D printing unless you would design a whole printer to use for example an UV-curing resin delivered to the workpiece via a needle - which makes this a non-FDM printer.</p></li>\n</ul>\n'}]
['https://3dprinting.meta.stackexchange.com/questions/59', 'https://3dprinting.meta.stackexchange.com', 'https://3dprinting.meta.stackexchange.com/users/61/']