Rich's frame came back: I got the chainring clearance wrong so badly it threw the BB cups out of alignment.
Mistake
Two problems: I was a little overenthusiastic in ensuring the BB junction was strong and stiff enough, there are about ten layers of composite here. I calculated that I wouldn't need a CS dimple. WRONG.
Cut it back and added a dimple:
Cut Back
Clearance
More clearance now
Bog
Filled in the new dimple so the Basalt will stick.
Basalt
Stuck the basalt.
Frame is in the oven now, more tomorrow.
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