I have a test model created with a friends place. We used 1.75 filament. Order the aluminum led from the German company. The all is 2cmx2cm and inside the 1.62cm to add the led strip.
I tried to put the aluminum into the printed object. But we seen now that the hole is 1.9cm x 1.9cm. So it won't fit.
Do you know what this can be?