<p>We're thinking of buying a PETG-powered printer. When researching printers available on the market, there are machines with a 100 microns. I was wondering if there are machines with a 50 microns or close to 50 micros? Otherwise, why not?</p>

[{'answer_id': 16165, 'author': 'Engineer Bill', 'author_id': 27899, 'author_profile': 'https://3dprinting.stackexchange.com/users/27899', 'pm_score': 1, 'selected': False, 'text': '<p>The Z axis moves between each layer so you are indeed printing in the 3rd dimension.  There are some techniques that move all three axis at the same time.</p>\n'}, {'answer_id': 16166, 'author': 'R.. GitHub STOP HELPING ICE', 'author_id': 11157, 'author_profile': 'https://3dprinting.stackexchange.com/users/11157', 'pm_score': 2, 'selected': False, 'text': '<p>Frame challenge: is it just 1D printing? Each G1 command moves linearly in a single one dimensional affine subspace of the build volume.</p>\n<p>What makes 3D printing 3D is that the resulting object produced is three dimensional. There are indeed a lot of advances to be made in FDM printing by not working only within constant-Z cross sections at a time, but these are matters of surface quality/accuracy and the classes of geometry that are printable, not efficiency.</p>\n'}, {'answer_id': 16167, 'author': '0scar', 'author_id': 5740, 'author_profile': 'https://3dprinting.stackexchange.com/users/5740', 'pm_score': 3, 'selected': True, 'text': '<blockquote>\n<p>I was wondering the other day why don\'t all three motors move at the same time?</p>\n</blockquote>\n<p>That is perfectly possible for most printers (with limitations, &quot;3D Printing&quot; with all steppers being used is called &quot;non-planar&quot; printing), but there are some major cons you need to deal with. First, there are not that many software suites that slice objects perfectly well like the &quot;normal&quot; per &quot;fixed/variable layer height&quot; slicing as the slicers are under developed. Second, it requires a specific tall and slender nozzle/print head, else the height of printing is very limited. Last, besides generally not being useful for rectangular prints (except for 90° overhanging structures<sup>1)</sup>), this method is only/best suitable for curved objects as the top layer will follow the contours of the object.</p>\n<blockquote>\n<p>It makes sense if a 3D printer really does print with all three motors moving.</p>\n</blockquote>\n<p>No, it does not make sense, the essentials of 3D printing it that it produces a 3D object, not that all stepper motors should be running simultaneously.</p>\n<blockquote>\n<p>Won\'t it also be more efficient if they do 3D print in all axes?</p>\n</blockquote>\n<p>Not necessarily, there are limitations to non-planar printing like geometry and print quality, but, you could (in some cases) print with less support material.</p>\n<hr />\n<p><sup>1)</sup> : From <a href="https://xyzdims.com/2021/03/03/3d-printing-90-overhangs-without-support-structure-with-non-planar-slicing-on-3-axis-printer/" rel="nofollow noreferrer">Rene K. Mueller, published March 3, 2021, https://xyzdims.com</a>:\n<a href="https://i.stack.imgur.com/eaJm0.png" rel="nofollow noreferrer" title="Non-planar slicing for printing 90° overhangs are tilted sliced"><img src="https://i.stack.imgur.com/eaJm0.png" alt="Non-planar slicing for printing 90° overhangs are tilted sliced" title="Non-planar slicing for printing 90° overhangs are tilted sliced" /></a>\n<a href="https://i.stack.imgur.com/Liiiw.png" rel="nofollow noreferrer" title="Non-planar slicing for printing 90° overhangs are conically sliced"><img src="https://i.stack.imgur.com/Liiiw.png" alt="Non-planar slicing for printing 90° overhangs are conically sliced" title="Non-planar slicing for printing 90° overhangs are conically sliced" /></a></p>\n<p><em>Note that these are <strong>demonstration</strong> pieces, normally you would rotate the print for 90° and print it sliced normal (planar).</em></p>\n'}]
['https://3dprinting.stackexchange.com/questions/16171', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/23759/']