DGP DGP-3 Benutzerhandbuch - Seite 8

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ELECTRODE GRINDING ASSEMBLY

(CONT.)

1. Left to right positioning: Adjust the position of the

electrode grinder assembly using the horizontal

adjustment knob (Handle B) to place beveled surface

of the electrode guide collet approximately 1/64"

from the grinding surface.

2. Slip a tungsten electrode into and through the

electrode guide collet to determine where it will

contact the grinding disk surface.

3. Up and down positioning: Adjust the electrode

grinder assembly using the vertical adjustment knob

(Knob C) so that the tungsten electrdoe will contact

the actual grinding surface.

4. Remove the tungsten electrode from the electrode

guide collet.

5. Put the eyeshield in place and start the grinder.

Slide the tungsten electrode into and through the

electrode guide collet and twirl the electrode (or the

pin vise holding the electrode) slowly in one direction

between thumb and forefinger as it approached

and makes contact with the grinding surface. To

retain maximum symmetry of the point, try to keep

from moving the electrode side to side within the

collet. The best technique for this is to constantly

lean the electrode against the inside surface of

the collet while turning. Continue grinding until

the desired sharpness is obtained. Make sure to

continue rotation as the electrode is backed off from

the wheel or a flat spot may occur along the point.

Contamination of the wheels can occur by using the

diamond grinding and cutting wheels as all-purpose

shop wheels. If you grind tools or other metal items,

other than electrodes, there is always the risk of

contaminating the wheels.

DGP-3 & DGP-3-V2 User Manual

Consult Illustrated Parts Lists on the following pages

See Page 13 for Optional Accessories and Consumables Parts List

In addition to proper positioning and avoiding

contamination, use the recommended grinding times in

Table 1 below to increase the longevity of the diamond

grinding wheels. The wheel can be used with very

limited wear by working according to these guidelines.

Wear of the wheel will double if the grinding time is

reduced by one half using more applied force and wear

will triple if the time is reduced by one third. Be patient

and do not gouge the wheel!

For users requiring extreme tolerances, a laser cut tip/

flat gauge is available from Diamond Ground Products

to accurately measure tip diameter. See page 13 for the

part number. Also note, a microscope or comparator

can be used to verify the angle (taper) of the grind in a

very precise and efficient manner.

Electrode Diameter

.040"

1/16"

3/32"

1/8"

5/32"

3/16"

Table 1: Recommended grinding times for each diameter

and

Grinding Time

1.0mm

5-8 sec

1.6mm

11-15 sec

2.4mm

15-20 sec

3.2mm

25-35 sec

4.0mm

30-40 sec

4.8mm

55-65 sec

Rev:B • 05/16/2023