Wanhao I3 Plus Nut Seats for Thing:1653631

I designed these as separate add-ons for spool3d_canada's i3 plus z-brace feet https://www.thingiverse.com/thing:1653631
If you have not printed the feet yet, you can have a look at abrandl's design https://www.thingiverse.com/thing:1912826 that have them incorporated in one print. I spotted his design too late as I had already printed spool3d's version but liked the idea of having the braces supported in both tension and compression.
No need to glue them on, you just slip them on the threaded