Barranca Diamond GP6-6 Wheel Cab Maker - Manual (Page 14)

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DIAMOND WHEELS
The GP6-6 Wheel Cab Maker comes equipped with two 6" OD x 1-1/2" brazed diamond wheels in
two diamond abrasive grit sizes (80 and 170 mesh or grit). Both wheels are manufactured to a low
tolerance OD circumference run-out for maximum wheel life and to prevent pounding and poor per-
formance during grinding. The high temperature brazed diamond bond provides excellent abrasive
performance when grinding the rough shape of the gemstone material. Diamond wheels must have an
uninterrupted flow of water during use for proper cooling and flushing of slurry and rock fragments.
Rough shaping of the gemstone material should be performed first with the 80-grit wheel with maxi-
mum water flow. It is recommended that you only pump clean water to the GP6-6 Wheel Cab Maker
water system and never recycle your drain water back to your grinding wheels.
Due to the steel alloy core construction and brazed nickel diamond bounding of both wheels, a “ring-
ing" noise will be heard during grinding and sanding. This is normal and should be of no concern.
Should coolant/flushing water flow be interrupted while grinding with the brazed diamond wheels, the
diamond may “glaze over" or dull the diamond bond.
Always ensure there is a clear, constant drip of water flowing off the rotating wheels into the reservoir
tank. Also, don’t over force the gemstone material into the diamond wheel surface while grinding. Al-
low the diamond bond on the wheel to work smoothly with a constant and steady application of hand
pressure. Rotate your gemstone frequently while grinding to uniformly remove material, nicks and flat
spots while rounding and contouring.
Remember, satisfactory results are dependent on the user's skill and experience, as well as the gem-
stone and equipment being used.
DIAMOND NOVA WHEELS
The GP6-6 Wheel Cab Maker comes with Nova Wheels (6“ OD x 1-1/2" wide) in abrasive grit sizes:
280, 600, 1,200, and 3,000 (6 micron).
Under no circumstances should the Nova Wheels be used dry. Dry grinding will cause them to wear
out prematurely. Therefore, keep a constant stream of water from the needle water control valve on the
top of the hood ON at all times. Always pump clear and clean water to the diamond wheels. For best
results always dry the gemstone material and check for scratches before proceeding to the next wheel
or diamond grit size. Do not skip wheels in the four wheel sequence (280, 600, 1,200, and 3,000 grit).
GP6-6 WHEEL CAB MAKER OPERATION AND ADJUSTMENT
280 80
600
1200
3000
14000
170