This is a simple cam mount that mounts to the front corner of the frame rails on your printer with T nuts and it has imbedded nuts in the base and the leg so you will need to set your cura post processing to stop and add the nuts or what ever kind of pause function that you have. the nuts are m4. there is 2 different legs included in file cam mount 1 is the one i prefer the other one is a little straighter up so you choose which one ya want.