<p>I'm using Cura to slice prints from a biodegradable polyester called PCL (<a href="https://en.wikipedia.org/wiki/Polycaprolactone" rel="nofollow noreferrer">Polycaprolactone</a>).</p>
<p>I need to print @ ~70 °C but extruder does not run until nozzle reaches 175 °C.</p>
<p>Which setting to change so extruder will turn on when nozzle temperature has reached 70 °C?</p>
<p>Here are my settings for the material:</p>
<p><strong><a href="https://i.stack.imgur.com/IIh9C.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/IIh9C.png" alt="strong text" /></a></strong></p>

[{'answer_id': 15497, 'author': 'Trish', 'author_id': 8884, 'author_profile': 'https://3dprinting.stackexchange.com/users/8884', 'pm_score': 3, 'selected': True, 'text': '<p>70\xa0°C is a specialty filament. It is well below the <code>MIN_TEMP</code> defined in any sane firmware. In Marlin, you <strong>can\'t</strong> turn on the extruder in any way, while this is online.</p>\n<p>You do need to define your firmware to allow such a print - either by dropping the value in the firmware or disabling Mintemp-protection and then <em>flashing that firmware</em>. That is quite invasive.</p>\n<p>To <a href="https://marlinfw.org/docs/gcode/M302.html" rel="nofollow noreferrer">temporarily</a> disable the <code>MIN_TEMP</code>, you need to run the G-code <code>M302 P1</code> or <code>M302 S0</code> - <code>M302</code> on its own does nothing. However, some firmware distributions might explicitly prevent these two commands of <em>turning off</em> the check.</p>\n<p>In that case, you might use <code>M302 S65</code> or similar to drop the <code>MIN_TEMP</code>.</p>\n'}, {'answer_id': 15500, 'author': 'Jorge Mercent', 'author_id': 26585, 'author_profile': 'https://3dprinting.stackexchange.com/users/26585', 'pm_score': 2, 'selected': False, 'text': '<p>In Cura Machine Settings, add <code>M302 S70</code>.</p>\n<p>Apparently, <code>M302 P1</code> and <code>M302 S0</code> do nothing, you need to define a non-zero minimum, and in my case, 70. Thanks to 0scar and Trish for your help.</p>\n'}]
['https://3dprinting.stackexchange.com/questions/15495', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/26585/']