Update: Fixed the model, There was a small lip that went over the edge of alu extrusion, which made it impossible to clamp an object down on the alu itself
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Needed some T-Nuts for mounting something on the Prusa Mk3,
I found Fallen's ( 3030 M5 Drop-in T-Nut ) model, but it was designet for M5 Nuts, Unfortunately I'm missing M5's so mixed the model to fit M3 nuts
Remixed he's design to fit M3 Nuts
Credit to Fallen :)
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My settings:
PETG
Layer height: 0.15
Perimeters: 8
Infill: 0%
No supports
Printed slowly ( 50% speed ) And with sequential printing
The author remixed this model.