Securely lock axys in 3d printer

Hello! I’m assembling 3d printer, how can I lock 8mm x axys? For the other axys I’ve used cable ties but for the x axys I dont’ know. Thank’s!

Does this help?

Hello! thanks but my trouble is not the belt but the 8mm rods of the X axis. Look these photos, I’ve blocked with cable tie Y axis and Z axys. I don’t know how can I do for the X axis. Thanks

I haven’t needed any cable ties mine don’t move.

The one you are asking about actually gets clamped by the tension of the bearing screw.