Bicycle backlight holder for 8mm roundbar rack-extension

I extended the bicycle rack with some 8mm rod to accomodate for bags and child-seat.
The backlight had to be moved back to the extension to remain visible.

The spacer prevents the clip from snapping when the screws are tightened.

Use 5 perimeters, 3 bottom and top layers, .3mm layers, 25% infill, no support.

Two 25x5mm screws and nuts are needed as wel as 4 corresponding washers.