Quick and easy print for mounting many Arduino boards to a 35 mm DIN rail.
They also work well as a simple bumper to keep your Arduino elevated above your workbench while prototyping.
If you are using them as DIN rail clips, clip them on the DIN rail first and then attach the Arduino.
Don't need to mount to DIN rail, then check out my screw-mount version:
I printed at 0.15 mm layers at 100% fill.