That's a good question Mr. Flaubert. I was wondering if anyone was going to ask.
Well, I do have a daily love/hate relationship with a milling machine but this type of job would be a nightmare to setup so fogetaboutit!
😀
For anyone with alignment issues, there is a fixture for facing the bosses. I believe
@jdog has one so he could get you all set.
As for me, I don't have one so I went about it in a sophisticated yet simple way.
First, I checked squareness of the bosses in relation to the rotor on the mounted wheel with a machinist square. (It was obvious where I was at)
Then I inked the face of the bosses.
Next, I used a custom ground square block with a nice wide base and a strip of sandpaper.
With the block flat on the rotor, not pushing hard to avoid warping it, I sanded the bosses with the strip of sandpaper firmly between the bosses/block with a nice even controlled stroke
😛
I faced them until the ink cleaned up on the entire boss.
How could it be more funner than that?
Bikes!