Tired of your tiny drill press table? Well watch this!

[Toolmaker51]

Be sure to bolt that machine to the floor. Most drill presses are extremely top heavy to begin with, so making it easier to upset the machines balance can lead to unwanted surprises.

Your post has had me thinking over the past couple of days why no body has developed a drill press with X&Y axis. Seems like a simpler solution than the cantilevered approach of a radial ARM drill.

Yes, there were and are drill presses with an X-Y coordinate movement. It's called a Bridgeport......
JK, I use one too. But such drill presses were called layout drills; Cleereman and Fosdick made all the few I've encountered.

Most upright machines are top heavy, round column drills likely worst of all. But I wouldn't feel need to anchor per se. I'd bolt existing base to a secondary foot plate, or outriggers. Won't tip but still 'mobile', maybe relocatable is more accurate.