I just got a new set of 2" mounted Chroma filters LRGB and 3nm Ha, Oiii, and Sii. When I went to install them in a new ZWO 2" x 7 EFW, the filters screw down until they rub on the bottom of the filter frame and then hang up on the EFW circuit board. I considered removing the three screws that hold the filter wheel on and flipping it over. That might do the trick but the screw recesses are on the other side so I don't to do that, and, it looks like the rotator motor wouldn't contact the outer edge of the filter wheel, there has to be an elegant solution. If there were some kind of shim for each filter to prevent it from screwing in so far, that might fix it. I could just screw the filters in 1/2 way and that would work but I think they would change positions over time.
Has anyone elso had this issue? Suggestions??