Today I found the DIY kit nemesis, a missing part!. Well I could contact my supplier and get the part shipped from China, or I could find one on thingiverse and print a upgraded one.
https://www.thingiverse.com/thing:1666094
And here’s it installed.
Probably spent about 2 hours today, and I’ve just got the cabling to tidy and connect.
Already printed a y axis tension upgrade which I’ll fit tomorrow.