Rest Mill Weirdness

[Tinyfxds]

I'm roughing out a pocket with a 3' fly cutter and then want to rest mill with a 1.0" fly.  The rest mill is not cutting a big area of the block and I can not get it to cut over that area no matter what I do.  Now, here's the kicker, If I change the 3" to a 2" then the rest mill will work just fine.  The first picture you see is the 3" and the second is the 2".

[Tinyfxds]

I figured it out.  For some reason when I moved my boundary out by .125" everything worked fine even though the boundary was on the outside of the block and I was cutting on the inside of the block

[crazy^millman]

I figured it out.  For some reason when I moved my boundary out by .125" everything worked fine even though the boundary was on the outside of the block and I was cutting on the inside of the block

 

Yes I will do that from time to time as long as the boundary does not allow the tool to cut it does not need to be perfectly on the inside edge.