Creality K2 plus combo profile !V2 OUT NOW!

i  would like to share my current profile i made after a lot of calibrations and test, its not perfect but if it helps someone get a good start i'm glad! i also made a list of things i did to make the printer run as good as possible, that list is down below! just load in the 3MF file in Orca and the settings should pop up!

NOTE THIS CONFIG IS FOR ORCA SLICER

!IMPORTANT! NOT ALL SETTINGS MAY WORK FOR YOU, MAKE SURE TO SET THE Z OFFSET/FILAMENT AND RETRACTION SETTINGS AFTER YOU'VE DONE THE CALIBRATIONS FOR IT!

the things I did to improve overall performance are quite simple I'll list these below.

1.Tightened all bolts/screws underneath/ on the back and inside the printer except for the leveling screws and belt tension screws on the back of course. Especially the ones from the linear rail.
2. Heat soaking the bed before printing for at least 20 mins.
3. Ran all the calibrations such as belt tension/input shaper/Nozzle PID and bed PID from the Fluidd interface. Bed leveling runs automatically when printing the first print after a power cycle so that's not necessary. Save the result's in Fluidd and reboot. 
4. Ran multiple bed leveling sequences and adjusted the bed screws and used some tape to get be the bed as straight as possible, mine is currently at 0.2mm variance.
5. Maintenance, more important than you might think. I do some simple maintenance every week, running all the calibrations, cleaning the rods/lead screws/ fans/ bed and applying new lubrication. 
6. When printing PLA leave the top glas panel off, This helped a lot with reducing warping and corners lifting.
7. Running a Flow calibration and Pressure advance for different filament brands, the difference in the amount of flow is actually quite a lot and can produce ugly layers or inconsistent extrusion. The automatic flow and PA feature is nice but can be inaccurate so I suggest using the files in orca or CP for this.
8. Place the printer on a stable surface, I've got mine on a large 50x50 concrete slab with a some foam underneath to reduce most of the vibrations. 
9. Temps and max flow rate, i print mostly with Elegoo PLA and after a temp tower i figured out that I can print with as low as 203° and still have a max flow rate of 22mm³. So I recommend running a temp tower and try a max volumetric flow calibration with those temps after to see how far you can go. Once it gets stuck at let's say 25mm³ stay about 3-4 mm³ below that for you max volumetric speed to be safe so that would be around 20-22 mm3

Thats about it, I hope it's a bit clear to read with the numbers I put before each tip.