MakerFarm i3v y-axis belt mount

This provides an improved mount for attaching the y-axis belt to the y-bed on MakerFarm i3v-series printers. One concern with the OEM mounting approach is getting a tight belt connection using zip ties around the end of the belt loops. Another concern is that wrapping the belt around the M3 screws could lead to backlash/ripple as the belt rocks on the belt teeth, or as the teeth compress during acceleration and then slack later.

These components are added to the MakerFarm wood belt mount and