bit sharpening
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bit sharpening
I need to sharpen my endmill bit, any suggestions on how to do this? I've found videos for vcarve bit, but none for endmill
- TReischl
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Re: bit sharpening
End mill with spiral flutes?
You might try googling for "end mill sharpening" and watch some of the vids produced by machinist folks. They usually use equipment designed to do it but it might give you some ideas of the angles involved.
You might try googling for "end mill sharpening" and watch some of the vids produced by machinist folks. They usually use equipment designed to do it but it might give you some ideas of the angles involved.
"If you see a good fight, get in it." Dr. Vernon Johns
- dealguy11
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Re: bit sharpening
Send it to someone who does it for a living. It's not that expensive and, unless you have the right equipment, you'll probably get a better result. Save them up and send them all at once, and tell the sharpener to sharpen all of them to the same diameter to reduce the amount of thinking (is this the 0.25" bit or the 0.24" bit?)
Steve Godding
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- Leo
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Re: bit sharpening
In sharpening an End Mill the gullet is ground to the face of the cutting edge. There is a relief from the face that has a rake back to allow clearance behind the cutting face. Depending on how much wear there is on the end mill, the grinder will remove more material from the face thereby reducing diameter all that much more. As for just about any periphery cutter this will be true. It is not really possible for a reground end mill to maintain diameter unless they sharpen ONLY the end, and that does not really do it. The reground tool will be a smaller diameter if it is done right.
Cost wise, it is really difficult to justify resharpening an end mill in the 1/4" or smaller diameter range, when they are so inexpensive new.
Even some on EBAY work well enough for hobby work and cost less than $10.00 if you shop around a little. I saw a pkg of 5 for $44.50 with free shipping 1/2 hour ago.
Personally, I just buy new ones. A 2 flute single end GARR (name brand) Carbide end mill at Carbide Depot is $16
Cost wise, it is really difficult to justify resharpening an end mill in the 1/4" or smaller diameter range, when they are so inexpensive new.
Even some on EBAY work well enough for hobby work and cost less than $10.00 if you shop around a little. I saw a pkg of 5 for $44.50 with free shipping 1/2 hour ago.
Personally, I just buy new ones. A 2 flute single end GARR (name brand) Carbide end mill at Carbide Depot is $16
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- TReischl
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Re: bit sharpening
I am with the other guys on this. If it is a larger end mill then you do not want to mess around with it yourself and destroy it.
"If you see a good fight, get in it." Dr. Vernon Johns