Summary This Y tension is for the Aluminum clad Anet A8 Z or S... I'm not sure of their designation. Some parts are the same on these machines, but others are different, like the Y pulley. I printed in PLA with 20% infill. It uses M3 hardware and is made to use a 16 tooth pulley. You'll also want to print at least 2 hold downs if not 4 to secure the unit to a 2x2 board or work work desk. Print Settings Printer: Folgertech FT-5 Rafts: No Supports: No Resolution: .2 Infill: 20 Notes: M3 Hardware Post-Printing For the front plate, the nut hole is a little tight, but that's to melt the nut into place. How I Designed This Designed in Fusion 360