DGP DGP-3 Manual do utilizador - Página 7

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OPERATION INSTRUCTIONS

Please refer to Figure 1 below for the optimum location of the electrode point contact area with respect to the grinding

surface. In the position shown, the motion of the diamond grinding wheel surface is parallel to the centerline of the

electrode to accomplish longitudinal grinding of the electrode point. When grinding very steep angles, such as 10°, be

careful that the electrode guide collet does not make contact with the diamond grinding wheel. This can contaminate

the wheel and reduce the life of the wheel significantly. For these types of angles, you may need to consult the factory to

obtain optional short collets that are available for these applications.

Refer to Figure 2 below for use with the following operation instructions:

1. If the tungsten you are using is already flat at the end, like new tungsten straight out of the box, proceed to Step 4.

2. Locate the Block Point Flat Dresser (DGP-F180) attached at the 12 o'clock position of the right side wheel cover.

Find the hole that matches the diameter of your tungsten and turn on the grinder.

3. Select the electrode guide collet with the hole diameter closest to the tungsten electrode diameter and position it

in the electrode guide collet tube. Notice that the collet has been beveled on a 15° angle at the front or exit of the

collet. With this surface parallel to the grinding wheel surface, tighten the set screw to hold it in place. The back,

or entrance, end of this collet has been milled down to its center line to make it easy to insert the electrode for

grinding.

4. Adjust the angular position of the electrode grinder assembly to the desired included angle of grind for the

electrode point using the angle adjustment handle (Handle A).

Figure 1: Optimal location of electrode point

contact area

DGP-3 & DGP-3-V2 User Manual

Figure 2: Electrode grinding assembly

Rev:B • 05/16/2023