Instruction manual

Diamond Cutter

Brass Cutter Knob

(with set screw)

Spindle Pulley

Pointer

Nosecone

Diamond Tip

Micrometer

(for depth

adjustment)

Retainer

Ring

Figure 4.1•Close-up view

of the carriage

Reverse

Threads

Zeroing the Diamond (see figure 4.1)

STEP 1.

Turn the micrometer to zero. This provides a starting point and reference for setting the depth accurately. It’s

important to note that the micrometer should be threaded onto the spindle housing sufficiently to prevent excessive

play in the micrometer and nosecone. If there are too few threads holding the micrometer in place it will move

during the engraving process. The best starting position is 3 or 4 complete revolutions from the top.

CAUTION: When you loosen the setscrew in this step, the diamond may easily fall out of the

spindle and can cause cutter tip damage. Use one hand to hold the diamond before loosening.

STEP 2.

With the appropriate diamond installed in the spindle, loosen the setscrew in the brass cutter knob with a spline

wrench (commonly referred to as the cutter wrench).

STEP 3.

Gently place a piece of metal (brass preferred) against the nosecone so as to push the diamond even with the

bottom of the nosecone. Now the diamond should be flush with the nosecone. Retighten the cutter knob setscrew.

Your diamond is now zeroed. Rotating the micrometer clockwise will adjust the depth of the cut. Each click of the

micrometer = .001”. A full revolution is .025”. Set the micrometer to .001-.003”.