Does anyone have experience with round beveling of holes cut with manual circle burner type machines, or possibly interfaced with a CNC controller? I am looking to find or design a bevel attachment for small holes (plowbolt holes, 1/2 to 1-1/2 w/sq hole and round countersink). I know the big cutters have those monster bevel head attachments but are super pricey.
I have seen "circle burners" and they are close but big for what I need. I believe I would need a max "throw" of 6" or so. There is a lot of math involved in cutting bevels, angles, rise, fall, outer dim, inner dim. I would need to do 82º bevels. I could use plasma or oxy/fuel.
Here is a pic of a round hole, round bevel that would be similar.
Thanks for any input!