mm) thick glass, you lower the head 1/4" (6.350 mm) to change to a new, fresh surface. This gives you two
grinding surfaces per head.
It is difficult to quote a specific number of hours that the diamond cutting head will last. Like sandpaper, it does not wear
out all of a sudden. Instead, the cutting head gradually begins to dull. The head's durability depends on the type of glass
you are grinding and your definition of dull. The 20 to 50 hours per surface is an estimate. Some claim more than 100
hours per surface, while others change to a fresh surface after 10 hours. Of course you should expect far less life if you
are grinding rocks. Never grind any metal (i.e. lead, copper) with the diamond head. This will make the diamond
surface unusable for glass in a matter of seconds.
To lower the 3/4" (19.050 mm) head, loosen the set screw near the top of the head with the Allen key. The loosened
head will slide up and down on the motor shaft with ease. Each time you re-position the cutting head, Glastar
recommends the application of a lubricant, such as Vaseline, to the motor shaft. When re-tightening the set screw with
the Allen key, make certain the screw is set against the flat side of the motor shaft.
TOOL DRAWER
This drawer provides quick access for all those items needed when operating the grinder, such as extra
grinding heads, Allen key, sponges, straight edge guide etc.
MAINTENANCE
The grinder's only moving part is the electric motor which has permanently lubricated bearings. No
maintenance is required.
After using the grinder for a short period, you will find that a very fine white paste, made up of glass particles,
collects at the bottom of the reservoir. This glass will also collect in the sponge and will eventually inhibit the
movement of water. Therefore, after every hour of use, remove the sponge, hold it under a water faucet, and
squeeze it several times to rinse it clean. Every four hours of use, clean the reservoir of ground glass.
To clean the reservoir, unplug the machine and remove the white plastic work surface. Move the left front corner of the
grinder over the edge of your work bench. Place an empty container under the drain hole and unplug the stopper in the
basin. After all of the water has drained out, use a large sponge to remove the white paste from the reservoir. Don't
forget to replace the stopper before refilling your machine.
For hassle-free reservoir cleaning, use Glastar's disposable reservoir tray. When the tray fills up with glass residue, drain
the water as described above, and dispose of the tray. Then, replace with a new tray and be sure to insert stopper.
TOP of page
GLASS SCRATCHES
Despite the grid-type of work surface, some finely-ground glass may stick to the top plate, and it can scratch
smooth, soft glass, such as 3/16" (4.7625 mm) or 1/4" (6.35 mm) plate, and some antique glasses. If you are
working with soft glass, it would be wise to place several strips of masking tape on the bottom of the glass to
raise it off the table.
Diamond Star
In this carton, along with the grinder, you will find the following items.
Super Star II
In this carton, along with the grinder, you will find all of those items listed under DIAMOND STAR as well as
a 1/4" (6.350 mm) Grinding Head and Adjustable Straight Edge Guide.
1. A flexible splash guard, which is to be installed on the top plate behind the grinding head.
2. Four adhesive backed rubber feet to be installed on the bottom of the grinder.
3. A one inch sponge which provides water to the grinding head, and two spares.
4. An Allen key to raise or remove the head.
5. An owner's manual and warranty card.
6. A flexible drain stopper.
7. An insert for 1" grinding head.
http://www.glastar.com/manuals/ss
