Rail End Cap Cover

I have a Laser Engraver and its frame is made of these "H" rails. The ends of the rails are rough and I decided to put endcaps on them. So I created these end caps with beveled edges. My "H" rails were roughly the following dimensions:

Width of H Rail = 61.30mm
Height of H Rail = 29.55mm
Thickness of H Rail = 2.5mm

Height of H Rail Cross Member = 7.3mm
Thickness of H Rail Cross Member = 3mm

I've included a picture of my H-Rail for your comparision.

Also, these endcaps do not