EVA / Hemera is still on EVA 2.3.0
Due to the reasons described bellow I had to omit upgrading Hemera to the newest spec, the main issue is the need for driving the main 35-40mm screws from the back. Sorry.
Possible deprecation warning
EVA / Hemera takes 50% of the work while being used by only 5.2% of the users, it's not fully to spec and in general Hemera is not a great fit for EVA. I don't want to be slowed down by it and my goal is to get rid of it from the platform.
This means that it will stop receiving upgrades but will forever be available in the 2.3.0 version in it's submodule repository.
E3D Hemera is an example of the front heavy EVAs (Aero was the same). The motor is huge and the whole extruder takes a lot of space so make sure to understand that the full print volume may not be accessible when using this EVA variant.
Why not bellow the rail?
I tried that on Aero - it did not work and was rendering it out of spec even more.
Hemera's motor needs to be put on quite early in the assembly process, remember to grab the right belt before putting it on.
- used by: 5.20 % (based on 2021-11 survey)
- EVA spec: 2.3.0
- authors: pkucmus
Bill of materials¶
PTFE Tube lengths
I have split the lengths into two, the drive side and the hotend side. You need to sum the two lenghts from this and the hotend BOM you'd be using. (preferrably get more PTFE)
Do not cut the PTFE into two pieces
|4||4.0||DIN 912 M3 8 mm||no|
|6||1.0||Duct v2.1 Angled 13.2deg||yes|
|8||10.0||M3 Hex nut||no|
|9||5.0||DIN 912 M3 10 mm||no|
|10||3.0||DIN 912 M3 8 mm||no|
|11||2.0||DIN 912 M3 16 mm||no|
|12||2.0||DIN 912 M3 35 mm||no|
|15||10.0||M3 Hex nut||no|
|16||1.0||DIN 912 M3 25 mm||no|
|17||2.0||DIN 912 M5 45 mm||no|
|18||2.0||M5 Hex nut Nyloc||no|
|21||2.0||DIN 912 M3 35 mm||no|
|22||6.0||DIN 912 M3 10 mm||no|
|25||3.0||DIN 912 M3 12 mm||no|
STEP files? CAD Link?
If you are looking for the CAD link to tamper with the design or to export the parts in formats other than STL you can find the links bellow.
Be warned though! The link directs to a live - bleeding edge - version of this particular EVA module - there is no promise it will be the same version as what you see above nor does it have to be the version Rat Rig provides.