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How to use conical flat drill bits

Published In: Instructions Created Date: 2015-03-26 Hits: 635 Comment: 1

When using conical flat drill bits to engrave, you will find it easily broken if not set right.
For different purposes or effects, you will need different specs of router bits. As for delicate engraving, you will find it heart-breaking when you see your tools broken during working. This will just waste time and money.To gurantee a good service life of your tools, you need some experiments to determine what kind of parameters would be ok for your purpose.
When using conical flat drill bits to engrave, you will find it easily broken if not set right.
For different purposes or effects, you will need different specs of router bits. As for delicate engraving, you will find it heart-breaking when you see your tools broken during working. This will just waste time and money.To gurantee a good service life of your tools, you need some experiments to determine what kind of parameters would be ok for your purpose.

For wood, metal, plastics, the parameters you set in CAD/CAM software would be greatly different. Here, i just want to tell you my experience of working with hard/red wood. Since the red wood is very hard to engrave. You need to be careful about your engraving speed. And, two are key facters:
1). Feeding speed: If your machie goes to fast, your drill bits are easily broken. For an industrial cnc router, the normal RPM is usually higher than 20000RPM. At this rate, your feeding speed can be around 1200-1500mm/min.
2). Downcutting speed: If you did not set the downcutting speed, and use default speed. That will be bad. Because this facter will determine how fast your drill bits goes down and back. If it's too fast, it will be broken. Think about a stone flying from outer space onto earth. Too fast, and they are burned and smashed into ash when hitting ground. If the speed is very slow, that might not happen.

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