Re: My EASY and relativley cheap SD3 enclosure
Don't despair! When we got our SD3, it would not even print the first layer.
After the Z tuning, we had the same problem as you with warping and often did not get beyond layer 7. It was a bit of a struggle to even print out the printer parts.
But now with the case, we have printed our first large part and it did not warp at all.
Also, we do not use hair spray, just wipe the bed off with acetone and it seems to be fine. Also based on advice from others, we start the first layer at 40% speed and run the bed at 100C.
Good luck, but do your case first.