Hi all this is my version of the various Wanhao Z braces around. This one i know works on Balco Touch and ill assume other i3 PLUS machines. The top Brackets and BALLS are from AzzA's Zbrace from thingverse https://www.thingiverse.com/thing:921948 and the front feet are from spool3d_canada's feet models for the front https://www.thingiverse.com/thing:1653631.
Ive made some little feet for the sides and back, you will need 4 of them. I have made them slightly wider since i printed them in the picture for more stability although its not seemed necessary.
You will also need 1m of 8mm threaded rod cut in half, 8 nylock or normal nuts depending on preference, nylock will hold tighter longer. Also some slighlty longer M3 and M5 Hex bolt. Can get big assorted trays on amazon. Ive added some adhesive pads on all of my feet to reduce vibration (works great) also amazon.