On my second A8 i use the Y-axis rework made by matsekberg.
When i converted my first A8 to an AM8, i really didn't like the Y-belt tensioner.
Also the other remixes didn't do much for me.
So i decided that i had to create one for myself
I liked the design of the tensioner from the Y-axis rework so much, that i decided to make something similar for the 2040 profiles.
40% and 80% on belt tensioner
2x M6 bolt 50-70MM (i used 70mm countersunk bolts i had lying around)
4x M6 nut
2x M6 washer
1x 20mm 3mm rod (i cut a M3 bolt to length)
2x m3 washer (in between the tensioner and the pulley)
4x M5x10 bolt (i used the ones for the frame)
4x M5 2020 t-nut
1x gt2 16t 3mm pulley