UPDATED V1 was to flexible. V2 is a lot stiffer, has a lower profile, and will just work better. Just tie to one of the anchors and wrap as necessary.
Was using spectra fishing line to replace toothed belts. Was kind of a pain trying to get the line length tied just right. These will allow some slack that can be taken up easily without having to re-tie everytime.
This video demonstrates the spectra fishing line in action. The washer would be used at one end of each of the lines. It's not used in this video, but if I need to adjust the line length again I'll put them in.
Original write up for belt replacement:
As in the first photo, use the knot of your choice to tie around one anchor. then wrap the line around the T's as necessary. Probably a good idea to ream it through with a drill bit to make sure it spins freely on the screw.
*The screw size is M3 socket head screw.