Andrew Davie wrote:In 3D printing, it is common to have the print surface (a plane) adjusted by 4 screws in the corners. This always bothered me; a plane is *defined* by three points, and it is about these that the plane pivots when they are adjusted. So, I get the same sort of vibe seeing 4-screws in a mirror adjustment. I understand why so, but still bugs the purist in me! Keep up the good work; am watching your construction with interest.
I agree with you Andrew, a 3 screw adjustment, although maybe not quite as rigid is better and I did notice when adjusting the mirrors on the original line frame 8 sided mirror, that if I was not careful the mirror surface could be easily warped, as acrylic does flex slightly. On the next try I will use a 3 screw adjustment instead and see what happens.