Raise3D E2 print head cover

I design this to improve printing PLA on this machine, this solved the clogging for me, feel free to try it, I'm not 100% sure this can fix the issue you have.
I changed the left print head with this cover mainly for printing PLA, then I keep the original cover on the right print head to print high temp filaments.

By the way, I changed the fan to 4010(12V).
Keep improving this by using the STP file I Posted if you want.