I just printed my first one to see how it fits. If it fits well, then 4 more. Thanks for sharing!! I have needed one of these. The issue I’ve had with other push in ones is that they break on insertion. Because the conduit was cut with a pipe cutter, the inner edge radius is smaller than 1" and curls inward. Perhaps this can be filed off, but no wires run through, so it is just as it was cut. This wedged approach may work, but it may need to shrink down to initially fit in.