Aluminum 15 series roll-in mounting bracket

I built a gaming table topper using series 15 extruded aluminum following the parts list and method from this video.

I wanted more roll-in mounts for other things but I didn't need the full aluminum ones nor that amount of strength so I made these out of PETG.

I made this with tinkercad.

Print using the orientation of the model as-is for greater strength.

Printed using a .8 nozzle with .6 layer height so results may vary if using a different size nozzle.