{"id":1148,"date":"2022-02-22T09:30:15","date_gmt":"2022-02-22T12:30:15","guid":{"rendered":"https:\/\/impresion3d.website\/?p=1148"},"modified":"2023-08-31T20:08:40","modified_gmt":"2023-08-31T23:08:40","slug":"cooling-settings-in-cura-2","status":"publish","type":"post","link":"https:\/\/impresion3d.website\/en\/cooling-settings-in-cura-2\/","title":{"rendered":"Cooling Settings in Cura"},"content":{"rendered":"

The cooling settings in Cura allow you to enable the layer fans during printing, these ensure that the material is properly cooled before printing the next layer. <\/p>\n\n\n\n

On parts with bridges or overhangs, cooling can increase print quality.<\/p>\n\n\n\n

Proper layer fan settings can make all the difference in the appearance and accuracy of your printed models. <\/p>\n\n\n\n

In this article, I'll walk you through the different cooling settings in Cura so you can get the most out of your 3D printer.<\/p>\n\n\n

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\"Cooling
Cooling Settings in Cura<\/figcaption><\/figure>\n<\/div>\n\n\n

Enable print cooling<\/h2>\n\n\n\n

With this setting, you can turn layer fans on or off during printing. The fans ensure that the material is properly cooled before printing the next layer. <\/p>\n\n\n\n

For layers with a short layer time and those with bridges\/overhangs, cooling will increase print quality.<\/p>\n\n\n\n

To activate the layer fans follow these steps:<\/p>\n\n\n\n

    \n
  • Open Ultimaker Cura and select the print profile you want to modify.<\/li>\n\n\n\n
  • Go to the \u201cCooling\u201d tab.<\/li>\n\n\n\n
  • Make sure the \u201cEnable Print Cooling\u201d option is enabled.<\/li>\n<\/ul>\n\n\n
    \n
    \"Enable
    Enable Print Cooling<\/figcaption><\/figure>\n<\/div>\n\n\n

    fan speed<\/h2>\n\n\n\n

    When the printhead fans are enabled, you can change certain parameters, one being the fan speed.<\/p>\n\n\n\n

    Controlling the speed of the fan can help improve the quality of the layers and prevent problems such as warping (deformation of the material).<\/p>\n\n\n\n

    Higher speed allows for better cooling, reduced dripping and stringing, but can also increase material shrinkage.<\/p>\n\n\n\n

    This is the reason why the speed may be different for different materials.<\/p>\n\n\n\n

    This adjustment is divided into the following parameters:<\/p>\n\n\n\n

      \n
    • regular fan speed<\/strong>: The speed at which the fan spins before reaching a threshold. When a layer prints faster than the threshold, the speed gradually increases towards the maximum fan speed<\/li>\n<\/ul>\n\n\n\n
        \n
      • maximum fan speed<\/strong>: The speed at which the fan spins at the minimum layer time. The fan speed gradually increases between normal fan speed and maximum fan speed after reaching the threshold.<\/li>\n<\/ul>\n\n\n\n

        For PLA, I always recommend using a speed of 100% for the fans, with the exception of materials that can cause warping problems such as ABS, Nylon where I would use a speed of 50%. You should also do your own tests.<\/p>\n\n\n

        \n
        \"Cooling
        fan speed<\/figcaption><\/figure>\n<\/div>\n\n\n

        Normal\/maximum fan speed threshold<\/h2>\n\n\n\n

        The normal\/maximum fan speed threshold determines when the layer fan will start spinning at its normal or maximum speed.<\/p>\n\n\n\n

        The slower printing layers use the normal fan speed. For faster layers the maximum fan speed is increased.<\/p>\n\n\n\n

        This setting defines the layer time at which the fan will switch between normal speed and full fan speed. <\/p>\n\n\n\n

        *By default for an Ender 3, Cura sets this value to 10.0s<\/p>\n\n\n

        \n
        \"Normal-maximum
        Normal\/maximum fan speed threshold<\/figcaption><\/figure>\n<\/div>\n\n\n

        Initial fan speed<\/h2>\n\n\n\n

        It is used only for the first layer.<\/strong>, in which the object is attached to the build plate. <\/p>\n\n\n\n

        Usually fans are disabled in the first layer to promote adhesion<\/strong> from the material to the build plate.<\/p>\n\n\n\n

        The speed then changes back to normal fan speed, which is achieved once the height setting for normal fan speed is reached.<\/p>\n\n\n\n

        By default this setting is set to 0.0 for an Ender 3<\/p>\n\n\n

        \n
        \"Initial
        Initial fan speed<\/figcaption><\/figure>\n<\/div>\n\n\n

        Normal fan speed at height<\/h2>\n\n\n\n

        This is the height to which the fans will rise at full speed. <\/p>\n\n\n\n

        In the lower layers, the fan speed will gradually increase from zero to normal fan speed.<\/p>\n\n\n\n

        It is also possible to change this parameter by adjusting the layer number where the fans should be at full speed.<\/p>\n\n\n\n

        Using a higher value increases adhesion to the bed, but can also cause bleed-through and reduced print quality. Printing with the fans maxed out from a height of 0.5mm is usually sufficient.<\/p>\n\n\n\n

        This value can change automatically when changing the layer height.<\/p>\n\n\n

        \n
        \"Normal
        Normal fan speed at height<\/figcaption><\/figure>\n<\/div>\n\n\n

        Minimum layer time<\/h2>\n\n\n\n

        The minimum layer time determines how long it should take to print one layer. <\/p>\n\n\n\n

        If a layer would normally take less time than the set value, the printer slows down so that the minimum layer time is reached. <\/p>\n\n\n\n

        This allows the material to cool before printing the next layer.<\/p>\n\n\n

        \n
        \"Minimum
        Minimum layer time<\/figcaption><\/figure>\n<\/div>\n\n\n

        Minimum speed<\/h2>\n\n\n\n

        This is the minimum speed the printer is forced to print at, despite being reduced to the minimum layer time. <\/p>\n\n\n\n

        When the printer slows down too much, the pressure at the nozzle is too low, resulting in poor print quality.<\/p>\n\n\n\n

        For example, if a minimum layer time of 5 seconds requires the printer to print at a speed of 8mm\/s, it will only do so if at least 8mm\/s is set as the minimum speed. <\/p>\n\n\n\n

        If the min speed is set to 10mm\/s, that means it won't print slower than 10mm\/s and the layer time will change accordingly, and then it will be less than 5 seconds.<\/p>\n\n\n

        \n
        \"\"
        Minimum speed<\/figcaption><\/figure>\n<\/div>\n\n\n

        raise the head<\/h2>\n\n\n\n

        Enabling this setting allows the print head to move away from the print while printing, while at minimum speed, but has not yet reached the minimum layer time. <\/p>\n\n\n\n

        The printhead will wait until the minimum layer time has elapsed and then return to printing to continue. <\/p>\n\n\n\n

        This allows the material to cool while at minimum speed.<\/p>\n\n\n

        \n
        \"\"
        raise the head<\/figcaption><\/figure>\n<\/div>\n\n\n

        Improve ventilation Ender 3<\/h2>\n\n\n\n

        Here are some popular options for improve layer ventilation<\/strong> on the Ender 3 3D printer, along with the links to download the files from Thingiverse:<\/p>\n\n\n\n

        1.Hero Me Fan Duct<\/h3>\n\n\n\n

        The Hero Me Fan Duct is a highly customizable, Ender 3 compatible overlay ventilation system. It offers excellent cooling to improve print quality, especially when printing with materials that require good heat dissipation. <\/p>\n\n\n\n

        You can find different versions and configurations on Thingiverse to adapt it to your needs.<\/p>\n\n\n

        \n
        \"\"
        Image from Thingiverse: Hero Me Gen7<\/a> Release 3.2 Printhead Platform
        by\u00a0        media man<\/a>\u00a0October 29, 2018<\/figcaption><\/figure>\n<\/div>\n\n\n

        Download link: Hero Me Fan Duct on Thingiverse<\/a><\/p>\n\n\n\n

        video youtube<\/span>: Teaching Tech<\/a> (Automatic subtitles available)<\/p>\n\n\n\n