What Kind of Bits to Use With BobsCNC Routers
Compression Bit – A cutting tool with a combination of up and down shear cutting edges. Typically used for cutting plywood or laminate material to prevent tear-out on both sides of the sheet.
Down Cut Bit – A cutting tool whose edges carve downward on the face of the toolpath. This reduces the potential for tear-out on the top of the material but requires a slower feed-rate because this pushes the chips of material into the cut, rather than clearing them out.
End Mill – A cutting tool with a straight end, typically with spiral flute(s). It creates a channel with a flat bottom perpendicular to the sides.
Up Cut Bit – A cutting tool whose edges carve upward along the face of the toolpath. Increases The potential for tear-out on the top surface but allows for a slightly higher feed-rate because this clears the material chips out of the cut.
V-Bit – A cutting tool shaped as a "V" and defined by the angle of the cutter. Used for V-carving; common size angle v-bits used are 30°, 45°,60°, 90°, & 120°.