Hi-Tech Diamond All-U-Need Instruction Manual - Page 8

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Grinding & Polishing Process

NOTE: When you are finished using any of the diamond discs, rinse and spin completely dry. Make

sure to store them in a clean, dry plastic bag. All discs are made with industrial grade diamonds.

The maximum weight of any discs/laps shouldn't exceed 1.5lbs on your All-U-Need machine.

Step 1: 180 Mesh Electroplated Diamond Disc (Rough Shaping)

The 180 Mesh Diamond Disc is used for stock removal and

shaping of hard-to-grind materials covering a wide hardness range.

NEVER use discs dry and use only clean water as a lubricant. Do

not use wipers or sponges, as they can become contaminated with

cutting debris and larger diamond particles. Contamination from

coarse material will cause hard-to-remove scratches in the material

you are working with. Grind the edge of your material to fit the

mounting or template. Also, remove bulk of material to create

your desired shape gemstone. Remove as many flat spots as

possible if you are making a domed cabochon. If a sharp edge is

present on your material, gently apply the sharp edge to the

diamond disc to prevent possible chipping of your material.

Step 2: 325 Mesh Brown Smoothing Disc (Smoothing)

This disc is used following the 180 mesh metal disc to further refine

the desired shape. It also removes scratches and flat spots left from

the 180 rough grinding process. It is important to remove all

scratches from Step 1 because these scratches are difficult,

sometimes impossible to remove later on. Rinse black spray shield

before proceeding to Step 3.

Step 3: 600 Mesh Red Smoothing Disc (Smoothing)

This disc is used following the 325 mesh smoothing disc. The 600

mesh red smoothing disc is used to further refine the work piece

before proceeding to the next step. It is not as aggressive as the last

disc and is excellent for removing the scratches and flat spots

remaining.

Step 4: 1200 Mesh Blue Smoothing Disc (Pre-Polish)

This disc is used following the 600 mesh smoothing disc. Once you

have completed shaping your stone through the previous steps, you

use this disc to remove any scratches left from Step 3. This disc is

a pre-polish pad, prepping your stone for the final step.