Marcus Bowman wrote: > I have an optical machine scope that has that kind of gimbal adjustment, > although it is just two screws which act on a spherical arrangement inside (I > think). Works fine. > I have also cobbled together an adjustable camera mount for a USB camera, but > don't use it (prefer my optical scope). > What would be the disadvantage of mounting it permanently on the side of the > head? That way it is always there, and you only need to calibrate its > position relative to the spindle, once. You could use a work offset. > The permanent mount can't allow for different Z distance. Putting it in the spindle allows the Z axis mechanism of your machine to make this adjustment and bring the workpiece into sharp focus. If your machine is a knee mill with the Z on the knee, or a machine where the whole head is your Z movement, what you suggest is fine. My machine has a manual knee adjustment and a quill on the spindle, so the fixed head camera would require moving the knee for camera focus. it would still work, but might not be as convenient.
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