most of the stuff ive downloaded and printed for my lathe has not worked an is usually way to small for the parts so ive just been making my own models for everything i want an now its the gear set that came with my lathe. looks like most have the plastic gears but i was lucky enough an got a machine that came with metal gears, not sure how many are out there for them but this is what came with my vevor 7x14 lathe that isn't on the machine. i will have more at some point an as i get more of the gears i'll make changes to this to accomidate until i decide to do something different but as of now it holds 2 60 tooth 2 50 tooth 1 45 tooth 2 40 tooth 1 35tooth and 1 30 tooth gear. i hadnt even considered whats on the lathe so i may be back with a couple more slots but this does for now.