AM8 Y belt tensioner remix

I modified the Y tensioner block to fit an M5x10mm (or less) socket head cap screw. This makes the belt tensioning screw press up against this metal piece instead of driving into the plastic.

Edit: Installed and tested. Works excellent! It looks like I messed up the hole dimensions a bit though, as a M5x8mm screw bottomed out earlier than it was supposed to. I drilled it a bit further and it's great!