Quote:
Originally Posted by daepp
I absolutely love this thread. No worries when someone occasionally forgets a pic - it happens to all of us - no harm no foul.
Also not fun when members antagonize others here. My $.02.
Random billet 5.0L 911 case:

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Quote:
Originally Posted by Captain Ahab Jr
Machining finish doesn't look best ever 
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Just a matter of the stepover vs. diameter of the ball end mill being used for machining. Cutting down the stepover would smooth it out considerably, albeit at the cost of increased machine time. In the areas left kind of "rough" that I'm seeing, it really doesn't matter anyway. Finish the mating surfaces and bearing cradles, and it's all good.
Tommy Olsen of ITG Racing has been mesmerizing us over on the S Registry with his machined from billet 2.0 liter cases for historic racing. Here is an example of the same cases, essentially, with much closer stepover: