
Core One cheap gt1.5 upgrade
For anyone who wants to upgrade his core one with gt1.5 pulleys and doesn't care about the heatbed and 1$ wiper can buy one of those sets.
https://west3d.com/products/genuine-gates-profile-1-5gt-toothed-pulleys-and-idlers with the gates belt the E version, but RF one works as well.
Or source alternative from here: