I have done several changes to the original to make it fit better on the Mega-S and reduce the needed support:
- I have moved the rear blower about 5mm away from the nozzle (was not centered), so hopefully PLA will be fine again, as I am having difficulties printing a ring-style one in ABS.
- added more robust screw holes
- modified some walls so my original Mega-S part cooling fan fits
- reduced the amount of support needed by adding slopes
Here’s my remixed half-circle version for the Mega-S:
Here’s my remixed half-circle hotend cover version for the Mega-S:
EDIT: added an updated version with lower fan ducts