Would you have any threaded nut inserts? The kind that have to be pressed in with a hot soldering iron.
I built a copy of (video) and I’m looking to finish assembly to do a review of the design. I could stop by Tuesday evening and bring the gearbox. We can try it together!
If you need just a few there’s a few M3 ones we’re using for a voron build but there will be spares. You can safely take up to 8 from the bin inside the voron on the main table.
In general I get mine from AliExpress and they’re good as I can bother to care, and kinda cheap.