CR-7 Screwless v-slot idler v5

The Creality CR-7/Freaks3d machine is kinda difficult to get the belts tight.
I didnt like the way the one sided acrylic holders sort of bent under belt tension.
There are a few other belt tensioning designs either too bulky or i could not get them to work properly.
I found a spring loaded adjuster gcode but could not find springs with enough tension,and I lost about 20mm print area.
Trying to learn freecad I decided to design my own.
This is my first practical design with freecad.
Ive pri