I designed these side panels to go on my Rostock Max. It's got horizontal holes for mounting things like an SSR, and it's got vent slots for airflow and cooling. I've also attached the DesignSpark file that I generated the DXF from, in case you need to modify the design.

Lasers!

Attribution - Creative Commons

Rostock, rostockmax, rostockmaxv2, sidepanel, vent, door, laser, lasercut