Anet E10 E12 Y-belt Tensioner

thingiverse

I've meticulously reworked the body and screw to achieve maximum compactness and neatness. The visual result is also quite appealing when the roller is fully enclosed, giving a sleek appearance that I personally find very attractive. It's worth noting that the nut itself comes from the original source. One important detail to keep in mind is that you'll need a longer belt than what's included with the standard setup if you want it to look like this as shown. Alternatively, using a longer screw from the original source will also give you the desired look without requiring an extended belt.