E3D Hermes is a dual-drive system with a hardened stainless steel drive train. Individually CNC cutting each hobb allows for a round-bottomed root, with a tooth that curves upwards to a robust, sharp tip. The round bottom of the profile strongly resists filament debris wedging into the drive gear and in almost all cases it’s self-cleaning as any debris simply falls off the teeth.
E3D Hermes uses a custom motor (based off a NEMA17 frame) modified with our endcap designs. This allows the motor itself to be part of the assembly, incorporating features such as bearing pockets and mounting points. Ultimately creating a smaller, more compact system with a lower overall part count. In addition, there are also 4 convenient T-slots on each side of the motor for flat mounting plus other accessories.
Along with a very short filament path from hobb to meltzone, the filament is tightly constrained. As a result of closely tolerancing all the components, we are also able to achieve a clearance gap between filament drive wheels and heatbreak of only 100um. This means that flexible filaments such as TPU’s can be printed with similar print speeds to PLA. To put it simply, we’ve made printing with flexibles super easy!
An optimised heatsink ensures airflow is diverted up and away from both the HotEnd and the heated bed, reducing the risk of warping and uneven stresses forming in the printed part. A further benefit of optimised airflow is that we can supply a quieter fan.
*Please note* - whilst the custom motor is similar to a Nema 17, it isn’t a standard Nema 17. Therefore, E3D Hermes it is not compatible with other Nema 17 motors and you'll not be able to swap the motor with either a compact but powerful/ slimline motor or other 3rd party motors.