AN ACCURATE CNC 4~(th )AXIS

摘要

The spindle lock needs a bit of care as its accuracy determines how effective it will be. I milled, drilled and recessed the block (photo 38 and fig 15) and set it up in the mill as shown in photo 39. A simple fly cutter was set up at the correct radius of 13.05mm by setting the mill spindle offset accurately from the block, the DRO set and the material moved away from the spindle by the radius. The flycutter was then locked in position just touching the block, giving the correct radius. The DRO was then zeroed, the correct Y axis position set and, using the quill, the scallop was machined.