Prusa Mini+ Upgrade (Edition 2) Revo Micro - Threaded Inserts Remix

The original model from E3D either threads into the plastic or uses square nuts for securing the part with M3 screws. I much prefer threaded inserts so I decided to modify E3D's step file so that I can use them instead.

Please read through the entire description before printing this yourself.
If you do make this for yourself and have any questions feel free to reach out, though I can't give you any warranty.

Instructions

I recommend printing the second version I made (REV1 files) and slicing yourself, over using the draft version/using the gcode I uploaded. The instructions are for the revisioned version.

Print this with the recommendations from E3D's installation guide. The 3mf file I included is based on these settings, just a bit more than necessary (more perimeters, more infill).
I printed this in Prusament Galaxy Black ASA.

The part was modified to have 4mm diameter holes* for M3 threaded inserts. I used the ones from CNC Kitchen, but other brands should do the job just fine, though they may specifiy different dimensions for the holes, in which case you should probably modify the model.

*The inserts specify a 3.9mm diameter for the holes, I modelled 4mm instead, see the bottom section.

You could use 5 of the short (M3,0 x 3,0) inserts, although the holes for mounting the fan are deep enough to for the standard length (M3,0 x 5,7) inserts, which I used.

A note about the draft version and REV1

The first version I made and printed is uploaded here as the "DRAFT1" version. This is the version I installed on my machine, however I noticed some short comings which I wanted to correct in REV1:

• The 3.9mm diameter used for the threaded insert holes I defined came out a bit too small, which created small “craters” after inserting the threaded inserts.
  The revision uses 4mm as the diameter.
• Even when using a standard length threaded insert for the cable strain relief mount (marked with the blue text in the image above), the screw that's used in the stock prusa mini doesn't grab into the thread properly. To fix this, I used a slightly longer screw. However this one would press against the linear bearing if screwed in too far.
  To fix this in the revision, I made the hole for the insert only about 4.1mm deep. You can only use a short insert there, but the thread should be close enough to properly support the stock screw.

I recommend the revisioned version, however I did not print that version for myself, hence the images in this post are slightly different.