d. If kit is not in use, turn off the circuit by pushing toggle to left.

Caution—Do not let the arm hang down without turning off the light. This will run down the batteries.

  1. Set Stop for Cutting and Polishing Table

The cutting and polishing of the table does not require the setting of a precise angle. The table is cut to touch the points of the main facets. If everything were perfect this would occur when the angle was set to 90 degrees and the index was 64. Unfortunately things are not perfect and the angle must be adjusted to match the table to the main facets. Each time the lap is changed to a finer lap or polishing lap, the trial error match be repeated. The use of the down light in cutting the table is described in the following steps:

a. Start cutting the Table.

    1. Adjust depth and cheater until the cut surface is equidistant from the top of all the main facets.
    2. Turn off machine and let stone rest on the grinding lap, while you turn on down light.
    3. Set contact.
    1. If light does not come on, turn screw until it contacts the second plate and bulb lights.
    2. If light comes on, back off screw until bulb goes out and then follow step 1.
    1. Add depth and cut until the light comes on. The table will remain in the correct position. Continue this procedure until the table is just short of the main facet points and then follow the procedure listed in g.
    2. If it is necessary to change to a finer cutting disk then change lap, raise arm slightly with the micro adjustment and add depth until the light goes on. Continue with the procedure described in step e.
    3. Raise the arm with micrometer adjustment and change to a polishing lap. Adjust depth until the bulb lights. Try the initial polish with a quick touch and then, if necessary, adjust the cheater and depth to make the polished surface line up with the cut surface. Once the polished surface matches the cut surface, raise the arm (with the micro adjustment) and then add depth until the bulb lights.
    4. Add one click of depth on the micro adjustment and polish until the bulb lights. Continue this procedure until the polished surface touches the top of the main facets.
  1. Set Stop for Polishing Non-symmetrical Stones

The polishing of facets requires that the faceter have the capability of adjusting the stone up and down and tilting right and left. In other words the stone is floating with out any fixed depth. Usually the polishing angle is ½ degree less than the cutting angle. To approximate the cutting angle, about 25 clicks must be added to the depth after the stone has been lowered to the polishing lap. Continuing adjustment is required, until the polished surface matches the cut surface. This is not a major problem with symmetrical stones as the adjustment is only required for the initial facet