This is a mount to support two 4020 fans for your Hemera + Volcano extruder. I don't think the measures will work for a standard v6. I didn't try it, but I think it won't work. I designed specifically for a Hemera + Volcano setup.
Take in consideration this mount probably will add weight to an already heavy extruder like the Hemera, but, depending on your needs, it could add value by providing a stronger cooling system.
It is designed to hold two 4020 fans, not the more common 5015, this trying to keep the mount as small as I could (it is not small either way)
Printing:
You might need a few support on at least one of the borders, just to make sure the cavity for one of the nuts don't get screwed when printed.
To mount you will required:
- 2 M3 * 16 screws and their respective M3 nuts to hold the fans to the mount
- 2 M3 * 5 screws and 1 uxcell M3x5.5mmx2mm to hold the mount to the Hemera (only 1, because the extruder already has one embedded). Like this: https://www.amazon.com/gp/product/B018503K94/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1
- 2 4020 fans,. Like this: https://www.amazon.com/gp/product/B07L2YH79Y/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1
You will require some welding work. There is a decent examples of it on the internet.