Here's my first personnal upgrade for my creality. Lots of people around me told me to get one from the 3d printing community, but the ones i saw weren't good enough for me, I decided then to make one of my own. Using Solidworks, I designed it in 3 parts.
Depending on the retraction of the material you'll use, the parts might be hard to assemble together. However, using PLA, you might not encounter nay troubles to assemble all the parts.
For thos one, I used for exemple SUNLU Wood base PLA (and a tape roll for better and smoother movement allowing less friction. I know the end might look big, but I liked the safety impression it gives when I look at it !
If you have any question, don't hesitate to contact me, and to tip me if you want to support me ! Thank you ! :)