What are the recommended techniques for setting up the design for the rotary jig to reduce a possible broken bit? This is a question I've asked myself as I am sitting here laying out my first carve. The software already prevents a pattern or design from being place over/on to the part off ends to eliminate carving into the jig which is a great thing. One thing I question is the "part off" indent actually carved?

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ID:	68544 in this layout the patterns are placed far enough away from the part off and drops straight down into the pattern area.

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ID:	68545 This uses a carve region with a feather to ease the bit into the carving area.

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ID:	68546 On this I set the part of dia. to 2" and no lead in carve region.


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ID:	68547 This one still has the 2" part off and a carve region with a feather.

My choice would be either that had the feathered carve region as they ease the bit into the carving area.

Looking for others thoughts on my line of thinking!