Re: [Emc-users] Mill ramp angle

[john]

What is an O-Flutes cutter?

-Original Message-
From: Todd Zuercher [mailto:to...@pgrahamdunn.com] 
Sent: April 14, 2023 6:52 AM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] Mill ramp angle

I've had great success with 1/4" O-flutes in aluminum.  But I spiral those
in pretty much exclusively and use HSM style tool paths where the tool never
sees more than about 20-30% engagement.  (While I've broken lots of 1/4"
O-flues, I've never noticed the tip breaking.)

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-Original Message-
From: Rob C 
Sent: Friday, April 14, 2023 9:04 AM
To: Enhanced Machine Controller (EMC) 
Subject: Re: [Emc-users] Mill ramp angle

[EXTERNAL EMAIL] Be sure links are safe.

what is the material?
what is the endmill material?
how many flutes?
is it centre cutting tool or non-center cutting end mill?

I have always struggled on o-flute endmills and ramp or plunge (breaking the
tip :(

https://zero-divide.net/?&article_id=4307_plunging-and-ramping-recomendation
s-and-techniques

On Fri, 14 Apr 2023 at 12:56, Nicklas SB Karlsson  wrote:

> fre 2023-04-14 klockan 12:07 +0100 skrev andy pugh:
> > On Fri, 14 Apr 2023 at 10:29, Nicklas SB Karlsson  wrote:
> >
> > >
> > > Anyone have any suggestion about this? Decrease ramp angle?
> > >
> >
> > Can you spiral down, making a hole slightly less than twice the tool
> > diameter, so that only one side of the tool is engaged?
> Yes it would be possible.
>
> If possible to convince CAM module in CAD software I could also plunge
> into a hole with a diameter 2mm less than mill.
>
>
> Nicklas Karlsson
>
>
>
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Re: [Emc-users] Mill ramp angle

[Nicklas SB Karlsson]

fre 2023-04-14 klockan 14:03 +0100 skrev Rob C:
> what is the material?
Some kind of ordinary steel.

> what is the endmill material?
HSS

> how many flutes?
4 flutes.

> is it centre cutting tool or non-center cutting end mill?
It is not center cutting flute os it might happen angle is to steep
event though I thought 10 degree should be good margin.


Nicklas Karlsson




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Re: [Emc-users] Mill ramp angle

[Todd Zuercher]

I've had great success with 1/4" O-flutes in aluminum.  But I spiral those in 
pretty much exclusively and use HSM style tool paths where the tool never sees 
more than about 20-30% engagement.  (While I've broken lots of 1/4" O-flues, 
I've never noticed the tip breaking.)

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-Original Message-
From: Rob C 
Sent: Friday, April 14, 2023 9:04 AM
To: Enhanced Machine Controller (EMC) 
Subject: Re: [Emc-users] Mill ramp angle

[EXTERNAL EMAIL] Be sure links are safe.

what is the material?
what is the endmill material?
how many flutes?
is it centre cutting tool or non-center cutting end mill?

I have always struggled on o-flute endmills and ramp or plunge (breaking the 
tip :(

https://zero-divide.net/?&article_id=4307_plunging-and-ramping-recomendations-and-techniques

On Fri, 14 Apr 2023 at 12:56, Nicklas SB Karlsson  wrote:

> fre 2023-04-14 klockan 12:07 +0100 skrev andy pugh:
> > On Fri, 14 Apr 2023 at 10:29, Nicklas SB Karlsson  wrote:
> >
> > >
> > > Anyone have any suggestion about this? Decrease ramp angle?
> > >
> >
> > Can you spiral down, making a hole slightly less than twice the tool
> > diameter, so that only one side of the tool is engaged?
> Yes it would be possible.
>
> If possible to convince CAM module in CAD software I could also plunge
> into a hole with a diameter 2mm less than mill.
>
>
> Nicklas Karlsson
>
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://list/
> s.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=05%7C01%7Ctoddz%
> 40pgrahamdunn.com%7C0a8897a3cab844908e5708db3ce8de16%7C5758544c573f47c
> ebee96c3e0806fb43%7C0%7C0%7C638170743088332739%7CUnknown%7CTWFpbGZsb3d
> 8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C
> 3000%7C%7C%7C&sdata=8YboLOEp9TzsBnJd9rorTnrtXIalE6uXFDUVlnThlA4%3D&res
> erved=0
>

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Re: [Emc-users] Mill ramp angle

[Todd Zuercher]

Spiraling in, even without a predrilled hole there is much easier on the 
spindle and tool than a straight line ramp, because like Andy said you are only 
loading one side of the cutting tool and not cutting the full tool width.  A 
full tool width cut is much more limited as far as maximum depth per pass than 
a cut that is only engaging a percentage of the tool.

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-Original Message-
From: Nicklas SB Karlsson 
Sent: Friday, April 14, 2023 7:53 AM
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] Mill ramp angle

[EXTERNAL EMAIL] Be sure links are safe.

fre 2023-04-14 klockan 12:07 +0100 skrev andy pugh:
> On Fri, 14 Apr 2023 at 10:29, Nicklas SB Karlsson  wrote:
>
> >
> > Anyone have any suggestion about this? Decrease ramp angle?
> >
>
> Can you spiral down, making a hole slightly less than twice the tool
> diameter, so that only one side of the tool is engaged?
Yes it would be possible.

If possible to convince CAM module in CAD software I could also plunge into a 
hole with a diameter 2mm less than mill.


Nicklas Karlsson



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Re: [Emc-users] Mill ramp angle

[Rob C]

what is the material?
what is the endmill material?
how many flutes?
is it centre cutting tool or non-center cutting end mill?

I have always struggled on o-flute endmills and ramp or plunge (breaking
the tip :(

https://zero-divide.net/?&article_id=4307_plunging-and-ramping-recomendations-and-techniques

On Fri, 14 Apr 2023 at 12:56, Nicklas SB Karlsson  wrote:

> fre 2023-04-14 klockan 12:07 +0100 skrev andy pugh:
> > On Fri, 14 Apr 2023 at 10:29, Nicklas SB Karlsson  wrote:
> >
> > >
> > > Anyone have any suggestion about this? Decrease ramp angle?
> > >
> >
> > Can you spiral down, making a hole slightly less than twice the tool
> > diameter, so that only one side of the tool is engaged?
> Yes it would be possible.
>
> If possible to convince CAM module in CAD software I could also plunge
> into a hole with a diameter 2mm less than mill.
>
>
> Nicklas Karlsson
>
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>

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Re: [Emc-users] Mill ramp angle

[Nicklas SB Karlsson]

fre 2023-04-14 klockan 12:07 +0100 skrev andy pugh:
> On Fri, 14 Apr 2023 at 10:29, Nicklas SB Karlsson  wrote:
> 
> > 
> > Anyone have any suggestion about this? Decrease ramp angle?
> > 
> 
> Can you spiral down, making a hole slightly less than twice the tool
> diameter, so that only one side of the tool is engaged?
Yes it would be possible.

If possible to convince CAM module in CAD software I could also plunge
into a hole with a diameter 2mm less than mill.


Nicklas Karlsson



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Re: [Emc-users] Mill ramp angle

[Stuart Stevenson]

I use 3 degrees when I ramp even when spiral plunging.

On Fri, Apr 14, 2023 at 6:12 AM andy pugh  wrote:

> On Fri, 14 Apr 2023 at 10:29, Nicklas SB Karlsson  wrote:
>
> >
> > Anyone have any suggestion about this? Decrease ramp angle?
> >
>
> Can you spiral down, making a hole slightly less than twice the tool
> diameter, so that only one side of the tool is engaged?
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is designed
> for the especial use of mechanical geniuses, daredevils and lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
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Re: [Emc-users] Mill ramp angle

[andy pugh]

On Fri, 14 Apr 2023 at 10:29, Nicklas SB Karlsson  wrote:

>
> Anyone have any suggestion about this? Decrease ramp angle?
>

Can you spiral down, making a hole slightly less than twice the tool
diameter, so that only one side of the tool is engaged?

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912

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[Emc-users] Mill ramp angle

[Nicklas SB Karlsson]

Have some problem then mill enter material ramping down it wobble and
torque increase. Diameter is 12mm and ramp angle is 10 degree.

Anyone have any suggestion about this? Decrease ramp angle?
Decrease feed during ramping?


Nicklas Karlsson



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