Because I don't like open belts down below where things can drop in, I designed these covers for the open z-belts in the FT-5. These are actually still a work in progress but I have printed them and made them work. The bottom outer edge of the actual cover may need trimming to sit flat next to the bases but can be trimmed easily with a pair of wire cutters or dremel. I have not gotten a chance to make the design change. The base plates are designed at this point to fit tightly down over the m5 baseplate bolt heads for easy of lifting the covers off to inspect the belts without haveing to remove the baseplate bolts.You will need 4 m3 x 10 or thereabouts screws to screw the top finish closure plate through the cover into the base to attach everything. If you print these and they need more modifications, let me know and I'll revise as necessary. mine are on and are working great but I did have to modify slightly for them to work as printed to the point I have them. Design change ideas are encouraged if it will improve their function. You will have to flip orientation prior to slicing to print flat side down with no supports. Keep in mind You will need to print 2 of each of belt cover top and top 3.