- Jun 24, 2010
- Reaction score
The 5mm external radius fillet profile around the top perimeter was milled with a bull nose HSS cutter. This is best done while the block is solid for vise retention. I blued the surface & made some sanity witness lines beforehand. You can in-feed horizontally or vertically but I found setting the datum vertically was a bit easier on this particular cutter. Then progress in from the fixed jaw side until the radius just kisses both witness lines. About 0.050" DOC/pass. Rinse & repeat.