I don't believe that the front plate "holes" holding the lugs in place on either side of the needle bar are threaded. The lugs, themselves are, to accommodate the nut next to the needle bar, and the end cap, holding the lug in place.donniej wrote:... The area on the bottom, under the needle bar has also been reinforced. The holes will have to be drilled, and depending on which resin I use, they may need to be tapped as well. Does anyone know what the size and thread pitch is by any chance?...
FROM: https://www.nipperhead.com/old/vic4sb02.htm
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I'm wondering what the optimum weight of the sound box would be. There must be enough weight to hold it "steady" in it's upright position, enabling the needle to properly track the record groove, and move the diaphragm back and forth. . If it's substantially lighter than the original, I think that softer, more complaint gaskets would be required to minimize the chance that the whole sound box/tonearm would sway back and forth with the needle's movement in the groove, instead of the needle bar and diaphragm. (Hope that makes sense.)
OrthoFan