cobrarkc,
BIGGER is better. But in this case, 4.25 is the largest bore the tooling for the plating will allow. If we sell a zillion (well maybe a few 20-30 of the blocks), we will probably pay the tooling for a larger bore size. The tooling is expensive, however.
olddog,
You are exactly right! With a million pieces of code, even a 0.1% error leaves 1000 errors. It is MUCH more complicated than many people realize. Tool clearance is the biggest problem. You don't realize x tool is too long, too short, hits a fixture, chatters...the list of problems is endless. Crashing in wood makes you look like a cave man trying to start a fire with friction...crashing in aluminum can cost you $10,000 for a new spindle.
Gotta run, delivering a car today but I will answer some of the other questions soon.
David
