Steve, the settings for the first layer height, width and speed really helped me with my new Da Viinci Jr. I couldn't get my first layer to stick at all with Simplify3D, even with tape, etc., but I had noticed that the initial lines were noticeably thinner than the lines printed when I was using XYZWare, which always stuck to the bed on the first try. The change the first layer width and height were the answer.
My one remaining issue is that when I use Simplify3D, my nozzle leaks a significant amount of filament while the extruder is heating up. In XYZWare, a tiny amount of filament may leak out - maybe an 1/8th of an inch. But using the same temperatures and filament, when I use Simplify3D I get anywhere from 1 to 3 inches of dangling filament that leaks out in the few seconds between 175 and 205 degrees. The extruder is down in the home position at that point, and there are only a few seconds before it starts printing, which makes it awkward to try to manually clean it before the print head starts moving. And then once it is printing, it takes a noticeable amount of time and distance, maybe 50 to 100 mm before it actually starts laying down a line of filament. Between the two, that makes the start of the print job still somewhat iffy.
I am using skirts, which helps address the delay before the filament starts flowing properly, but it really doesn't help clear out any dangling filament that was already hanging from the extruder. The skirts are still fairly localized to the actual printing area, so most of the time when the dangling filament is scraped off it is going to lay within the print zone and end up messing up the first layer anyway.
What I'm looking for is a way to draw a 50 to 100 mm single or double line down one edge of my print bed prior to starting the skirt / brim. I've seen the instructions on the Simplify3D site about how to print multiple objects sequentially, so one approach would be to find a simple object that I can use for this priming activity first before going on to my real activity. I haven't found a suitable model yet, so I may look into just making one myself.
The alternative would be to use G-Codes to draw the line, which would be simpler to use since I could just add it to the scripts block in my default process, but I'm not familiar enough with them yet to know how to write it. Does anyone else use something like this?