Anyone rigged up a travel stop on an FP1 quill?

Hi,

I have a project coming up that would require putting the head at an angle and repeatedly, every quarter inch or so, plunge an end-mill in the work for a depth of let's say 0.200". So, in the end, I get a series of equally spaced, equal depth, square-bottom round holes, all at the same angle to the top surface of the part.

So, to do this, I need to use the quill for the plunge, since it is not on the same axis of travel as the knee. I would like to have a way to repeat the depth of the quill plunge quickly and reliably, without having to watch the quill dial for every plunge. Is this something anyone of the members here has ever done?

The only obvious thing I can think of right now is to devise some kind of collar to lock to the part of the spindle that sticks out of the top milling head. It would seem that it would also require some kind of thrust bearing/washer that would rest on the top of the head so as to make the "mating" of the stop collar to the top of the head less dramatic when you reach your require depth.

Does this seem like a reasonable way to go? Am I missing something? Is there a much easier way to do this quickly?

I'm opened to any idea.

Thanks in advance.

Jacques