Anet A6 Y belt aligner

thingiverse

Important: You have two options to build the H-carriage, check out this image: https://3dprint.wiki/reprap/anet/a8/bed-carriage (note that it's for Anet A8 but illustrates the concept). By shifting the central plate downwards, you'll reduce the overall height by 6 mm. That's why this assembly has two designs: one with a 17 mm and another with an 11 mm height. Choose the design that suits your needs. As shown in the picture, moving the top part of the belt lower aligns it parallel to the bottom part. Additionally, you'll need longer screws for this build. After making this small upgrade, the carriage moves much more smoothly. Best regards P.S. The photo shows a 16mm block height instead of 17mm, so the belt lines may not appear perfectly parallel.