AM8 Belt Tensioner Y for 10mm GT2 Belt Ultra Strong

Since the 6mm belt has made more problems for me than it should, I have now installed a 10mm GT2 belt on the Y axis. Since there is no proper tension and the eh are usually too unstable, here is my ultra stable version. It uses a M5x40 screw and an M5 nut.
Print with a bit of support, because the inner part needs this, goes without, but looks stupid. Have fun reprinting.