I am proud to report that after 2 1/2 years of living with a stove with only 3 working burners, I managed to fix the spark/lighter on the 4th burner so that they all work now.
Now, I can move on to fixing this very recent problem.
it seems I may still a have some work to do on the stove. It still sparks, but only when I’m not trying to light that burner. But it did work for a good couple of hours, most of which I spent watching Black Swan to prepare for the Oscars. On the plus side, we’re considering using the 3D printer at work to make a replacement piece of plastic for the dryer.