Is there a way to purchase spare T-Nuts (maybe even with the screws)? My set was missing one for the earth connection and the online nut I find in the store (https://e3d-online.com/t-nut-6mm) seems to be smaller.
I think these are the ones you'd want if you wanted the same ones. https://www.amazon.co.uk/Thread-Eur...rds=t-nut+30&qid=1569282690&s=diy&sr=1-3&th=1 The extrusion is 3060. There's are other options though. Those T nuts on that link also come in M3, for which you might (I do for sure) have more screws handy. Yet another option is to print some. I appreciate you couldn't use a printed one for earthing, but you could swap some around. I used this model to print additional T nuts I needed: https://www.thingiverse.com/thing:3199057 This has M3, M4, and M5 versions, so you could make something to suit. I happened to have M3 nuts and screws in abundance so went with that sizing.