Smaller bit for section of 3d carving

[thomas]

I recall seeing someone say they used a smaller bit to run over just a section of a 3d carving to enhance the detail on a 3d carving. Such as using a 1/8th ball nose for the finish cut and then a 1/16th to add detail to just a section of the carving. I can't seem to find the post. I think it would save some time on some models. I was wondering how you can do this? Do you set up a tiles to section it off? Thanks.

[Shipfitter]

What are you using for 3d software (Aspire)? Small example if I am not mistaken. Just for conversation here, I just opened up a file. It had a bunch of gingerbread men nested on it. I put a little rectangle on one of the men, and also made sure to click on the model, and voila, only what was in the rectangle got FINISHED. So if you want to get fancy, you can go into the NODE EDIT MODE, and do all kinds of things.