sharpening endmills in the home shop

[wrenchcruncher]

I am looking for a way to sharpen my own endmills, without the cost of buying a grinder or building the quorn. I think I saw one made from a mitre saw once?.
Thanks wrenchcruncher

[kwadrazaki]

Originally Posted by wrenchcruncher I am looking for a way to sharpen my own endmills, without the cost of buying a grinder or building the quorn. I think I saw one made from a mitre saw once?. Thanks wrenchcruncher

why do you ask, when you already think that you have the answer, kwadrazaki from holland!!!???

[joecnc2006]

because he is asking for input or other ways people may have done it.

Joe from US !!!???

[jackson]

I have only used a sharpener, but years ago i guy i worked with had some way of doing it on a manual lathe but i cant rember how,

[BobWarfield]

There is quite a bit of discussion on this subject over on the HSM forum. It isn't hard to reach a point of sharping the end of the mill. Sharpening the flutes takes a bit more effort (e.g. an air bearing spindle). Many conversions of spin indexers and that sort of thing are discussed there.

Best,

BW

[ozzie34231]

Bob,
What's the HSM forum?
Jerry

[BobWarfield]

http://bbs.homeshopmachinist.net/forumdisplay.php?f=3

Best,

BW

[joecnc1234]

find a local sharpening company 5 dollars can't beat it

[Mcgyver]

like Joe said, or find a used T&C grinder. imo grinding away at the end doesn't accomplish much unless all you do is plunging. It's the sides that are used to cut and it takes a good set of bearings and an accurate fixture to put a decent grind on the periphery of the end mill - a quality grinding spindle is not a trivial thing. not to say you couldn't diy, but you might not avoid the complexity of the Quorn in the attempt

[mxtras]

It's simple with the right equipment and experience and impossible without it. It is also a bit of an art - using an air spindle and a tooth rest takes a little to become comfortable with - you won't get the results on round one or two.

Scott