![]() ![]() You would also likely expect this compact package to be very lightweight but it comes in close to 400g which is easily achievable with other extruder and hot-end combinations. The big disadvantage of Hemera approach is the lock-in: you can’t use different hot-end*, you can’t use different stepper motor** and you can only buy spares from E3D. The filament path is also all metal which makes it better at pushing flexibles and abrasives. This approach means you can make the combo more compact and achieve a shorter filament path between the extruder and the hot-end. It combines an extruder and a hot-end in a single unit. E3D HemeraĮ3D Hemera takes a totally new approach to 3D printer extruders. The dual drive gear system provides good grip and allows to print flexible filaments in direct drive configuration. However, it’s driven with a large NEMA 17 stepper motor and it’s rather big and heavy for direct drive setup. This extruder can be used in both direct drive or bowden configuration. It is the most common extruder in use today and comes included with a lot of 3D printers. BMGīMG (Bondtech Mini Geared) extruder was originally developed by Bondtech but because of its success it has been cloned by many others. For example, BMG comes with a lot of printers out of the box and there are the most mounts made for it but that’s mainly because it’s been out there the longest and it’s still the most affordable option today. I will do this in chronological order so you can better understand the extruder evolution over time and why some of them are more common than others. Let me give you a quick walkthrough of the popular extruder options. If you are still running a BMG extruder you should know there are better options out there. ![]() The latest and greatest E3D Hemera is equally capable of being used in direct-drive or bowden configurations, simply by installing the “ Bowdaptor” for bowden of the Hemera heartbreak for direct-drive.A new extruder can significantly improve your print quality and speed. For those interested in a variant that makes a shorter direct-drive extruder, the Titan Aero replaces the Titan’s cover with a heatsink/cover combo that is air cooled and can be threaded with standard E3D V6 heatbreaks. The original Titan Universal Extruder can be used in direct-drive or bowden, simply by inserting an E3D groove-mount heatsink directly into the extruder body or by inserting a groove-mount bowden adapter. Usually there will be some level of swapping-parts around to convert the extruder from one configuration to the other.
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