Grille teeth for MINI Countryman F60

Required material: 2 cable ties, preferably black. I used ~7mm wide reusable ties.

Print Settings

Supports: Yes

Resolution: 0.2mm

Infill: 100%

Filament: Generic ASA Black

I recommend printing at an angle as displayed in one of the pictures. I initially printed it horizontally, but the strength suffers for it and it broke off while tying it to the grille. Having the slight angle means the layer lines go all the way throughout the part.

Post-Printing

Optional: painting

I sanded, primed and spraypainted the teeth with a silver metallic outdoor paint.

I've included a very simple "painting stick" to hold the teeth for spraypainting. This stick required a bit of sanding down to fit (I gave it some margin but not enough for the differences in printing orientation and/or material shrinkage, as I did print that in PLA).

Mounting

See the last photo for reference. The cable tie goes through the slits at the top (should work with most of the positions on that same level so you can position them more to the left or right if desired). The hex below that is an open one. I had enough space to fit my fingers through there and grab the tie to loop it through.

If you're having trouble, the grille can be loosened with a number of torx screws on top (8 screws I believe) and you can carefully bend it forward a bit to maybe give enough clearance. I only did this for checking my options before designing the teeth, I'm sure there's a guide somewhere on removing the grille entirely but since I didn't need to I just left it in place.

How I Designed This

I've included the Autodesk Fusion file if you want to modify it. Note: it is not the most clean CAD 😀. I had no prior experience working with surfaces or 3D sketches, and I was very lazy in modifying the mounting system after the first prints. But it's a simple part and I always appreciate source files so it's there if you want it!