I’ve had my Finder for ~8 months now, used it a lot at the beginning and enjoyed a bunch of easy prints (and a few failed ones due to my own mistakes) that turned out awesome.
Then things turned sour. At first I thought it was badly designed models (for the record, I’m not a modeler, just grabbing fun models off MMF, Thingiverse, etc), but I tried fixing them with Meshmixer and still had the same issues. Also, models that I’ve successfully printed before are starting to have this issue.
Larger prints (aka not areas that were narrow and more likely to break) started splitting, for lack of a better word. The hex fill seemed to stop sticking down and stopped following the hex pattern, almost like it just stretched out across the gap. Sometimes the printer would seem to correct itself and print another few layers as it was supposed to, then start splitting again.
The splits aren’t even really something you could fill in and smooth over, you can pretty much peel the print apart. Obviously, I’m not too thrilled.
Best pictures I could get of what I’m talking about using the Beefy Shark (pardon the support material, tried not to break it before I could snap some pics):
I’m pretty stumped as to where to even start troubleshooting; the things I’ve googled haven’t been for the Finder, haven’t been my issue, or even been what I thought I was searching for.
My guess is that the layers just aren’t sticking together, maybe due to some underextrusion and the PLA cooling too quickly?
Anyone have this issue, or have any ideas for me?
Hi there. I have had this same issue on numerous occasions and was very strange. It appears (though many just be coincidence) to be due to changes in the Flashprint software or updated firmware. When I resliced the model using the new version of Flashprint it appeared to fix things. May be worth trying.
Alternatively, you may need to replace the PTFE tube and nozzle as your peroblem could be due to under extrusion from filament feed issues.
I’ve tried to keep my firmware and Flashprint up to date, but I did just try it again after making sure everything was up to date, still no dice. 
Guess my next step will be looking into the hot end and PTFE tube. Thanks for the tip.
Well, after dismantling the nozzle and examining both the PTFE tube and the nozzle itself, both look to be in good condition – the tube isn’t melted at all, not even discolored, and the nozzle is clear. I’m right back to being totally stumped. :\
