accessory. Look this table over and become familiar with it.
Ultimately, the best way to determine the correct speed for work on any material is to practice for a few minutes on a piece of scrap, even after referring to the chart. You can quickly learn that a slower or faster speed is more effective just by observing what happens as you make a pass or two at different speeds. When working with plastic, for example, start at a slow rate of speed and increase the speed until you observe that the plastic is melting at the point of contact. Then reduce the speed slightly to get the optimum working speed.
Some rules of thumb in regard to speed:
1.Plastic and materials that melt at low
itemperatures should be cut at low ;speeds.
2.Polishing, buffing and cleaning with a wire brush must be done at speeds not greater than 15,000 RPM to prevent damage to the brush.
BRUSHING PRESSURE
1.Remember, the tips of a wire brush do the work. Operate the brush with the lightest
pressure so only the tips of the wire come in contact with the work.
2.If heavier pressures are used, the wires will be overstressed, resulting in a wiping action; and if this is continued, the life of the
3.Wood should be cut at high speed.
4.Iron or steel should be cut at high speed if using tungsten carbide accessory, but at slower speeds if using high speed steel cutters. If a high speed steel cutter starts to chatter
5.Aluminum, copper alloys, lead alloys, zinc alloys and tin may be cut at various speeds, depending on the type of cutting being done. Use paraffin or other suitable lubricant on the cutter to prevent the cut material from adhering to the cutter teeth.
Increasing the pressure on the tool is not the answer when it is not cutting as you think it
should. Perhaps you should be using a different cutter, and perhaps an adjustment in speed would solve the problem. Leaning on the tool does not help. The correct speed will make using the rotary tool effortless.
brush will be shortened due to wire fatigue.
3.Apply the brush to the work in such a way that as much of the brush face as possible is in full contact with the work. Applying the side or edge of the brush to the work wil! result in wire breakage and shortened brush life.
CORRECT: | INCORRECT: | |
| ||
Wire | tips | Excessive |
| ||
doing | the | pressure can |
work. |
| cause wire |
|
| |
|
| breakage. |
| S | S |
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