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Posted by Glenn Ashmore on April 18, 2006, 4:37 pm
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What is the best way to use a corner rounding bit. With a large radius
router bit the recommendation is to bring the corner down in several passes
but it seems that with corner rounding mills on aluminum I get better
results taking the full cut at higher speeds and low feeds. I am a bit
hesitant to try that with steel though. What is the proper technique?
--
Glenn Ashmore
I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com
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Posted by Eric R Snow on April 18, 2006, 7:53 pm
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wrote:
>What is the best way to use a corner rounding bit. With a large radius
>router bit the recommendation is to bring the corner down in several passes
>but it seems that with corner rounding mills on aluminum I get better
>results taking the full cut at higher speeds and low feeds. I am a bit
>hesitant to try that with steel though. What is the proper technique?
I always take it all in one pass. Actually, I climb mill and then
conventional mill at the same setting when using a manual mill. On the
CNC I usually only make one pass and climb mill. If the machine is
rigid enough climb milling is preferred. When routing you make
conventional cuts. This type of cut tends to make the cutter deflect
into the work so leaving enough material for a clean up pass will help
insure a cut with no gouges. Climb milling deflects the cutter away
from the work. If climb cutting is done with hand held tools things
can get away from you in a hurry.
ERS
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Posted by Robin S. on April 18, 2006, 8:03 pm
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> I always take it all in one pass. Actually, I climb mill and then
> conventional mill at the same setting when using a manual mill.
Did you mean to write this? I virtually never climb mill on a manual
machine, even for finishing. I find I never get a really great finish
anyway, and if a good finish is required in die making, the surface is
typically ground or stoned.
Regards,
Robin
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Posted by Randy Replogle on April 18, 2006, 8:23 pm
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>Did you mean to write this? I virtually never climb mill on a manual
>machine, even for finishing. I find I never get a really great finish
>anyway,
>Robin
>
Really? I'd bet most would say they can get a better finish climbing
than conventional anytime. Do you machine dry?
-- Randy Replogle
My wife says I'm doing my Christian duty...
annoying the hell out of her.
Randall Replogle 2006
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Posted by Tom Gardner on April 18, 2006, 9:15 pm
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> Really? I'd bet most would say they can get a better finish climbing
> than conventional anytime. Do you machine dry?
> -- Randy Replogle
Randy, we've all been asked not to tease Robin about his hyperhidrosis, you
are SO mean!
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>router bit the recommendation is to bring the corner down in several passes
>but it seems that with corner rounding mills on aluminum I get better
>results taking the full cut at higher speeds and low feeds. I am a bit
>hesitant to try that with steel though. What is the proper technique?