DIY laser alignment - correcting dealer foul up

[IdahoMtnSpyder]

You are on the right track. I built my own laser alignment equipment following this recommendation:
http://www.lindsayroland.com/spyder/spyderwheels.html

One minor concern I have with that system is that it will be difficult to get all three of the legs of the plate exactly the same height, i.e., within 0.001" to 0.005" of each other. A 0.005" variation in the leg height could lead to about 0.2" error in the beam spacing and toe-in. Probably not enough to get wrapped around the axle about, but it could be there.

[Jetfixer]

One minor concern I have with that system is that it will be difficult to get all three of the legs of the plate exactly the same height, i.e., within 0.001" to 0.005" of each other. A 0.005" variation in the leg height could lead to about 0.2" error in the beam spacing and toe-in. Probably not enough to get wrapped around the axle about, but it could be there.

I used calipers to set the legs as exact as possible...

[Eckhard]

One minor concern I have with that system is that it will be difficult to get all three of the legs of the plate exactly the same height, i.e., within 0.001" to 0.005" of each other. A 0.005" variation in the leg height could lead to about 0.2" error in the beam spacing and toe-in. Probably not enough to get wrapped around the axle about, but it could be there.

I would be more concerned with the plate where the laser attaches being flat enough even though it is mounted at 3 points which is a nominally "stress free" configuration.