Actually, this cheap printer (130$ including SH) started working much better than you expect. And an about it.
Tronxy X5. How to increase accuracy of "0" position, for Z-axis, by 10 times.
You can watch pictures that self-explain. To find more info duckduckgo.com works the best.
I will be happy to answer your questions (if there are few, and by e-mail).
Have a good 3D printing : )
SK, 2019