I found the standard i3Mega hotend cover annoying, either because it necessarily limited my view of the nozzle, or because it was tedious to remove and replace, or because I wanted to access the connectors, or just because it being black constantly messed with my camera's auto-exposure. Also, it is no longer forced to blow all of the air coming off the heatsink down onto the print, so in theory your nozzle fan may be more effective now.
This is a cut-down remix of
You need :
4 - M3x8 (or 10mm I forget, I don't use this or the original printhead anymore)
4 - M3 hex nuts
Added *-005.stl according to comment recommendation:
- Holes are now all 3.4mm in diameter, for use with the same M3 bolts and a 0.4mm nozzle but without needing to drill them out (yeah, I got tired of doing that a while ago too).
- The nut holes are now tighter. You will need to heat the nut over a flame for a second or two prior to pressing it into the slot. If you have never done this before just start slow, and remove the nut as soon as you see it wasn't hot enough and you aren't going to get it in, then reheat more and retry. It's pretty simple and very worth learning. Make sure the bolt hole in the print lines up with the nut you are inserting to know when it's been inserted the right distance.
That said: it's possible the nuts can be inserted just by application of a little force, so try that first. Your specific nut and print tolerances will determine if it works or not. Even if they do fit, melting them in slightly keeps them in place.
- I only updated the most recent version with the big hex-holes/thin hex structure. All other files are unchanged.
-002 to 004.stl
slapped in some fan protection. Because several weeks have passed and I don't hate the first one, but it is far too easy to put fingers in the fan.