More infos on my N3P Mods: https://www.reddit.com/r/ElegooNeptune3/comments/1e35xoj/upgraded_neptune_3_pro_showcase/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button
The carriage and the other parts use M3 x 5(w) x 5(l) heated inserts.
The author remixed this model.