Flexible woes on a Da Vinci 1.0A

What speed are you printing at? Flexibles should be run at half or even a 3rd of your normal speed and should never exceed 20mm per second on a DaVinci with a stock extruder. The 1.0 was never really intended to do flexibles due to the gap of about 5mm or more between the gears and feed tube. To use flexibles you need a feed tube shaped like an arrow head that will fit right betwee and near touching both gears.

Keep in mind they also claimed on the box for the 1.0 that it could print PLA, but once you bought it, unpacked it, and read the small print hidden deep in the manual in broken Chinglish you would find that you needed to buy , not offered, but needed to buy and upgraded head to use PLA.

So just because they say it can does not mean it can.

I've been trying out samples of various flexible filaments lately and the best I hit on is Sainsmart TPU.
Prints very well with an E3D and is about half the price of other flexibles.
I even managed to print slightly faster with it up to 15mm/s.

I tried printing with the xyz flexible cartridge for days.  At first it worked for maybe two prints.  After that it would not stop kinking even when I pulled the filament out of the cartridge to ease the tension.  I eventually made my own filament guide after looking at the one on thingaverse.  That one did not work but surprisingly mine did.  I've been printing flexible filament for about 37 hours now with no problem.  I haven't touched it since.  I don't want to evoke bad luck.  I printed it in the abs yellow which came with the printer.  The guide hole was drilled out smooth with a #47 drill I think?  Well, whatever drill size is used to make about a 3mm hole.  The supports for the center were routed out with a dremel and endmill for a snug fit.  I am attaching the .stl and the Solidworks 2016 file.
I am using stock firmware (2.something) and xyzware without an external slicer.  Basically, everything is out of the box.  (Boy does this slicing software vacuum immense male anatomy)

The printer is printing now and honestly I am not that motivated with the schedule I have.  However, installing it is pretty simple.  Just jam/twist/put the guide onto the brass threads in the print head.  Turn the filament guide so the threads pull it on tight.  It should be a snug fit and take a little force to get it on.  I used some slip jaw pliers to thread the guide onto the threads.  If you are unable to put the print head back in then do one of the following.  Turn the guide the other way.  It is asymmetric because the two gears in the head are different diameters.  You may have put the filament guide in backwards.  If that is not the case, the guide is sitting a little too high to fit under the gears.  Likely there is still a little bit of support material in there which needs to be removed.  Just dremmel out a little more material from the bottom of the guide.  Repeat the process until you have the correct height and are able to close the print head.  If you get stuck post back.  I will try to check this thread periodically over the next couple weeks.