Carl_m1968 see attached pic. Blue part, finished. Transparent part, not finished. I had already taped the sensor, so, check!
I tried a dozen or so times with different slic3r settings. Most ending with similar results. I had 2 successful prints, but I had to print them at 0.4 layer thickness. When I tried to repeat that I only got 1 finished out of 10 then finally threw in the towel.
The "failure" is the printer will actually stop extruding, or will actually have trouble extruding. Skipping and not consistent feeding.
I just don;t know how to trouble shoot it, whether the temp is to high or what.. and with a hacked davinci. Going through all the steps to change slic3er settings then exporting, then changing it all is just SUPER tedious.