Creality Spider Hotend Adapter for Ender 3 series

That's a long story (if you don't want to read it, scroll down):

1. I bought this hotend spider from Creality, there is little information on the internet. I tried using it on my printer and the filament always stuck. I thought: it must be cooling (I was right);
2. I built a robust version using the 2 original coolers (hotend + part), and it worked, but I would like more speed (which is equal to more volumetric speed...). I designed a version that directed the air directly to the hotend (it worked, but it leaked air underneath and I couldn't print ABS with the printer open (yes, I do that and it works VERY WELL)).
3. I positioned the main cooler tilted upwards directing the air towards the hotend and voila: the air wasn't going (as much) to the table. I replaced the original cooler with an RGB one (RGB = improvement in print quality). The cooler was weaker (30 to 40%) but continued to work well and was QUIETTER.
4. 4th: I made a piece that fit without screws, just with pressure, I positioned it in a way that I could easily change the nozzle, the coolers or for cleaning.
5. Finally I managed to use the hotend at 100% of its capacity, today I have an average of 30% more volumetric speed compared to the original, and much quieter.

Some important questions

• Printing the main part: I did it in PETG for heat reasons, but I think it would work with PLA (maybe the air outlet would melt, I didn't test it). I made it transparent so that the RGB penetrated the piece (it looked beautiful).
• It needs supports, but you can modify it so that you don't need it... (I wasted a lot of time on it already)
• Protection of coolers against fingers and parts that could break them: I made a piece with gyroid filling (it was more beautiful and "organic") that fits into the spaces. It doesn't perfectly fit the space of the side coolers, but they haven't lost performance.
• Wind flow: It's simply the most perfect one I've ever had, it hits the part perfectly, my speed with PLA goes up to 80mm/s (I'm not going for quality anymore). Generally 60mm/s (it's still an ender).
• Cooler placement: The main cooler is the same as the original, you can place it from the front or from the inside, if you place it from the inside you need to force the part a little (it may break depending on the material and print quality, I suggest disassembling it and running the wires inside and installing the cooler at the front).
• This is a modification that also added another standard Ender 3 cooler to cool the part

The side coolers provide plenty of space.

Internal support: The part has enough space to be installed without having to resize, but you may need to place pads for the coolers (paper, rubber, or printed pieces) I recommend that you print with a 0.4mm or 0.6mm nozzle for a quality finish and resistance.

The cooler covers are adjusted and fit without gluing, but you may need to adjust it by 0.5% up or down on your printer, or glue it.