I ordered a set, the prop locks won't work with them & although they do fit & look like they will work, they do actually touch the motor whereas the original props do not touch. I have not flown with them yet
Can someone use a plastic 3D printer and start making these....construction seems very simple you can copy the dimensions from a real one ...the plastic is really soft to prevent serious injury..
I wouldn't feel safe using anything not approved by DJI - some people are more brave than I am. On my last set of props with no spares, hope they are shipping sometime soon or a lot of people will be grounded once they use up the two sets you get in the initial shipment.