pic: 1671 swerve module 3.0

Originally Posted by sdcantrell56

If you set the center to center distance correctly then you shouldnt need a tensioner, especially considering kevlar reinforced belts essentially do not stretch, especially during a typical first season. The only thing that could be a benefit is some type of idler to effectively increase the wrap around the small pulley. As it is now, with sudden direction changes you could skip the belt

I have seen/stretched Kevlar belting in FIRST. The only belts that I have worked with and not stretched are steel belted Brecoflex belts. From this experience, I would feel safer with some kind of tensioner. Something as simple as a milled slot with a busing mounted idler could do fine.