Inspired by various of these, in particular I used the pictures at https://www.printables.com/model/439968-drill-guide as prompts.
Uses steel rods from junked (taken apart for the bits) old HP inkjet printer. ('Dumpster dive' source. Had dried up and wasn't printing well, and also, WHAT IS THE COST OF THE INK FOR THESE THINGS!!?!!?!) If you have a different set of rods, then the sizes in the design will need changing.
Trial and error process to make the piece that the drill connects to. (what I called ‘Spacer’). Fits quite well, but still some room for improvement.
The author remixed this model.
Smaller.
Doesn't do the sophistication of the additions where the steel rods are fitted.
Adds a spacer to fit around the torque adjustment ring on the drill, doesn't just use a circular and flat piece there.