When I bought the 5" milling vice, it was obvious that the top surface of the jaws were not parallel to the mill table. I never bothered to do anything about this because, up till making the front frame, I never needed it. So I removed the jaws and gave them a good clean and removed some burrs with a little draw filing. Fitted them back indicating them to be parallel to the table.

I then milled off some excess material from the front frame.  I also roughed out the top radius (that's why I did the adjustment on the vice).

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I wanted to finish all the operations using the mill vice before removing it to fit the rotary table. All that remained were two 3mm mounting holes on the back leg (even though the plans show one mounting hole) and two 3mm tapped holes to fit the bronze bearing. I could not resist, and mounted the bearing to see how it looks.

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I took off the milling vice and put on the rotary table.  Indicated it with a coaxial indicator.  I then put the part on a sacrificial piece of aluminium and indicated it also using the same indicator.

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Then proceeded to clean up the radius which did not take long.  It took longer to set it up.

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The assembly was bolted up and clamped and indicated on the mill table.  Some skimming cuts were done on the surface where the bearing will be located until it was the same height as the other bearing pillar.

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For the final cut, the other bearing pillar was also clamped to the assembly, and both surfaces were skimmed together thus making sure they are at the same height.

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A family shot of both bearings fitted and the crankshaft installed.

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I re-made the outer bearing pillar to be more consistent.

The one on the right is version two.  It has the same curves as the other leg and the top is thicker so that I can use studs to hold the bearing.  It looks a bit top-heavy, but I am hoping that with the bearing on it and sitting close to the large flywheel it will not look too bad.