Original tools:
($49.95 for only socket wrench insert) https://solartoolsusa.com/socket-wrench-insert-mc4/
($1142.86 for the whole kit) https://www.currentconnected.com/product/staubli-mc4-and-mc4-evo-2-tool-kit-ul/
3.5 Nm to 4.5 Nm source: https://www.youtube.com/watch?v=TfHsCjCEYI4&t=573s
My attempted settings:
Material: PETG Basic
Nozzle: 0.4mm
Wall loops: 6
Infill: 35%, rectilinear
You can try using a C clamp around the opening and see if it works. Nevertheless, I posted the model for others to try their hand at remixing a better version.
Otherwise, I'd recommend this setup instead:
The author remixed this model.
used the settings
type = Double Hex
base_size = .5
base_depth = .5
socket_sizes = [11/16]
socket_length = .6
style = Straight
spacing = 15
units = Imperial
and then adjusted the ridges to match the MC4 connector