This close up of a tiny fence shows retractions (in purple) on the left model. 06 Nov 2019. This refers to the speed of the retraction when the nozzle switches to standby mode. Default printing temperature. This is the printing temperature of the materials as found in the materials panel, without any extrusion rate corrections applied to it. You can withdraw your consent at any time. The minimum layer time determines the time it should take to print one layer. For example: If you set the maximum retraction count to 25 and the minimum extrusion distance window to 1.0 mm, it will do a maximum of 25 retractions per 1.0 mm extruded filament. The speed then changes back to the regular fan speed, which is achieved once it reaches the height setting for the regular fan speed. The print head fans ensure that the material is cooled properly before the next layer is printed. A long retraction creates more stress on the material, takes time and minimizes oozing. This setting determines the minimum distance the print head must travel before a retraction move is initiated. During the warm up, the nozzle is allowed to start printing when this temperature is reached. This allows the printed material to cool down properly before printing the next layer. 06 Nov 2019 . You can find more information about cookies on our Privacy and Cookie Policy page. A short retraction has an increased chance of oozing, but keeps the material secure and print time shorter. This setting is divided into the following parameters: An overview of common cooling settings combinations, projected onto a pyramid model. This refers to the temperature of the nozzle while printing, including the adapted extrusion rate. With retraction-intensive models, you could increase the value, which decreases the number of retractions and reduces the possibility of grinding. The extra heat lost by extruding hot filament is compensated by this value. Ultimaker uses functional, analytical and tracking cookies. The flow is the amount of material that needs to be extruded over a specific amount of time and is based on the filament diameter and print speed. When switching nozzles, the inactive nozzle has to cool down. This is the printing temperature of the layer that adheres to the build plate. By enabling this setting you allow the print head to move away from the print during printing, while at the minimum speed, but when it has not yet reached the minimum layer time. With this setting you can enable or disable the print head fans during printing. It’s also possible to change this parameter by adjusting the layer number at which the fans should be on full speed. When the print head fans are enabled, you can adjust certain parameters. This is the distance in millimeters that the material is retracted from the nozzle. When printing with two different materials, the temperature will be an average of the two. This is the printing temperature of the materials as found in the materials panel, without any extrusion rate corrections applied to it. The print head will wait until the minimum layer time has passed and will then move back to the print to continue. This value protects the number of retractions on the same piece of filament. Exercise caution when using flexible materials or models that require a lot of retractions as it may lead to grinding of the filament. By using retraction, “stringing” (thin threads of plastic in between the printed parts) is prevented, resulting in a much cleaner model. A low-speed retraction has an increased chance of oozing, but will protect the material. For layers with a short layer time, and those with bridges/overhangs, cooling will increase the print quality. This is the length of the retraction of the filament when the nozzle goes into standby mode. This setting is only used in dual extrusion machines. A higher speed allows for better cooling and reduces oozing, but can also increase the shrinkage of the material. This is the height at which the fans will increase to full speed. If you agree with the use of tracking cookies, click “I agree, continue browsing”. This is the length of filament over which the maximum retraction count is enforced. This value is higher than the normal retraction distance, since the nozzle will be in standby for a longer period of time. Just before the nozzle switch, the nozzle is allowed to cool down to this temperature while continuing to extrude. The maximum retraction count sets the maximum number of retractions on a certain length of filament (see minimum extrusion distance window). Layers that print slower than this time use the regular fan speed. However, for models with a lot of holes (e.g. Printing temperature. A higher retraction speed results in a better print, but has a higher chance of causing filament grinding. All retractions above this value will be ignored. If you agree with the use of tracking cookies, click “I agree, continue browsing”. Tracking cookies enhance your experience on our website and may also collect your personal data outside of Ultimaker websites. This setting can be useful, especially with flexible filaments as these require extra pressure to print properly. v0.4 (Feb 1, 2020) - Linux support in install script (thanks @toluschr) v0.3 (Jan 25, 2020) - Decreased first layer speed to 15 mm/s for even better adhesion. The temperature change here indicates how much faster the nozzle cools down when extruding. If the minimum speed is set at 10 mm/s, that means that it won’t print slower than 10 mm/s and that the layer time will change accordingly, and would then be shorter than 5 seconds. This refers to the temperature of the nozzle while printing, including the adapted extrusion rate. Printing with the fans on full from a height of 0.5 mm is usually sufficient. When switching nozzles, the inactive nozzle cools down to the standby temperature. This is the extra amount of material that is extruded after a retraction to compensate for oozed material after a travel move. You can override that in settings. This gives the printed material enough time to cool down while at the minimum speed. If you do not consent with the use of tracking cookies, click “Refuse”. With this setting you can enable or disable the print head fans during printing. 2.11.2 . A high-speed retraction minimizes oozing, but can cause material grinding. The right model is not allowed to retract (in blue) the short distance between the railing bars due to a minimum travel restriction that is greater than the actual distance. The benefit of maximizing the amount of retractions is that it decreases the possibility of grinding. This will only work temporarily and won’t solve the underlying cause. The temperature is slightly lower than the printing temperature since the filament already obtained heat from the nozzle for a longer period of time. Tracking cookies enhance your experience on our website and may also collect your personal data outside of Ultimaker websites. Ultimaker Cura; Print settings; Cooling settings Last updated on December 30, 2020 14:36. This setting is only used in dual extrusion machines. Un libro è un insieme di fogli, stampati oppure manoscritti, delle stesse dimensioni, rilegati insieme in un certo ordine e racchiusi da una copertina.. Il libro è il veicolo più diffuso del sapere. This prevents excessive oozing when in standby mode. This setting forces the printer to retract the filament before it starts printing the next layer. For faster layers the fan speed gradually increases towards the maximum fan speed. The preset material profiles on the Ultimaker already contain the default values for Ultimaker materials. Download . If you do not consent with the use of tracking cookies, click “Refuse”. Enable cooling fans. Ultimaker uses functional, analytical and tracking cookies. One of these is the fan speed – the speed at which the fans spin. This is the minimum speed at which the printer is forced to print, despite slowing down to the minimum layer time. v0.5 (Feb 14, 2020) - DUAL extrusion support! The flow is always set to 100%, which means that the extruded amount of filament will match the calculated amount. You can find more information about cookies on our Privacy and Cookie Policy page. a voronoi print), this can lead to stringing if the value is too low. Without retraction, extruded material will hang between the parts. Improved default support settings – adhesion between models and support has been increased, All devices: minor bug fixes. This setting defines the layer time at which the fan will switch between regular fan speed and maximum fan speed. You can withdraw your consent at any time. Ultimaker Cura; Print settings; Material settings Last updated on December 30, 2020 14:33. Using a higher value increases the adhesion to the bed, but can also lead to oozing and a reduced print quality. This setting is not usually changed, as the calculation is done automatically, but it can be useful when printing with experimental materials. Download . This refers to the speed, in millimeters per second, at which the material is retracted and primed. When the printer slows down too much, the pressure in the nozzle is too low and results in a bad print quality. Printing at a slightly warmer temperature increases the adhesion between the build plate and the model. Retraction is used at the places in a print where the printer has to do a travel move between two printed parts. Changing this value is uncommon. This is why the speed may be different for different materials. In the layers below, the fan speed will gradually increase from zero to regular fan speed. This refers to the temperature of the nozzle when it is in standby mode, while the active nozzle is printing. If a layer would normally take less time than the set value, the printer slows down, so that the minimum layer time is reached. Each printing profile has a slightly different printing temperature to create the best print result. Each material has an ideal build plate temperature, which is set here. The print head fans ensure that the material is cooled properly before the next layer is printed. A slightly warmer build plate during the layer reduces the chance of warping. The standby temperature is low enough to protect the filament from degrading or clogging, but is high enough to quickly continue printing. This setting defines the diameter of the filament in order for Ultimaker Cura to calculate the extrusion rate correctly. Changelog . By increasing the retraction extra prime amount, more pressure is added which helps compensate for the material. This is the temperature of the build plate when printing the first layer. v0.2 (Jan 24, 2020) - Fixed bug with incorrect init/wipe code for right extruder. All Ultimaker filaments have a diameter of 2.85 mm, but you might need to change this setting when using filament from other suppliers. This setting defines the heated bed temperature during the printing process. For example, if a minimum layer time of 5 seconds requires the printer to print at a speed of 8 mm/s, it will only do that if at least 8 mm/s is set as minimum speed. This controls the fan speed on the initial layer only, which adheres to the build plate. However, the value must not be set too high as this might lead to stringing and cause ugly “blobs” to form on the print. It is not advised to increase the flow to compensate for under extrusion.
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