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I have a quick question, I haven't not yet printed the parts yet but u have two m4 bolts that hold the part to the bearing block. Then u have the other part that slides up and down within that and that part holds the bltouch. By the looks of it the m3x30 goes through the top of the part that is bolted to the block and it threads into the part that is attached to the bltouch? Or does the bolt go all the way through and there is a nut of the bottom side of the part that holds the bltouch?