They do a very nice job engraving, but feeds and speeds can be a bit tricky for a couple of reasons. They come in all shapes and sizes, but usually they look something like this: V-Bit Feeds and Speeds for EngravingĪ V-Bit is a special purpose bit intended for engraving. Let’s go through the G-Wizard support for a couple types of these cutters. – Deciding how much to derate the chip load from that of a standard endmill. – Deciding what part of the cutter’s geometry to use when calculating diameter and from that, surface speed. When calculating feeds and speeds, it’s a matter of dealing with at least two issues: V-Carve Bits for engraving, and Dovetail cutters are two good examples. Milling form cutters have special profiles and are used for special situations.
V-Carve, Dovetail, Corner Rounder and Round Over Bits CNC Feeds and Speeds Cookbook Introduction to Milling Form Cutters
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