Re: [Emc-users] Plastic button routing

[Erik Friesen]

For 1/16 and larger plastic cuts I really like the onsrud single flute
cutters, I am sold, even at $40 plus for larger ones.


On Thu, Apr 18, 2013 at 7:10 PM, Peter Homann wrote:

> Ye Steve is correct. I machine the soft plastic in these cases. The spindle
> speed is 1000rpm or less with a single flute 1/8" bit.
>
>
> http://homanndesigns.com/index.php?option=com_content&view=article&id=56:mp-03-cnc-pendant-kit&catid=34:cnc-projects&Itemid=55
>
> http://homanndesigns.com/images/stories/MP-03Pendant/MilledEnclosure.jpg
>
> I slow the spindle down until I get the correct looking chips coming off.
>
> Cheers,
>
> Peter.
>
> On 19/04/2013 7:21 AM, Steve Blackmore wrote:
> > On Thu, 18 Apr 2013 07:29:46 -0400, you wrote:
> >
> >> Hmm.  I wonder how many folks who own a cnc router would let somebody
> else
> >> do something like this?  My bro-in-law has a laser engraver, but to get
> a
> >> paintable depth would take a lot longer than the 20 seconds per but its
> >> taking me.
> >
> > Must be a slow one? Most these days do anywhere between 1000 and 5000
> > inches per minute!
> >
> >> So the suggestion is that a v bit is not going to curl the edges the
> same
> >> as an end mill?
> >
> > No - if you get the feed and speed right. As Marius said, slow down the
> > speed and up the feed, you want it to cut, not rub.
> >
> > Steve Blackmore
> > --
> >
> >
> --
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> >
>
> --
>
> -
> eStore: http://www.homanndesigns.com/store
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> email : pe...@homanndesigns.com  DigiSpeed - Isolated 10Vdc I/F
> Phone : +61 421 601 665  TurboTaig - Taig Mill Upgrade
> board
>
>
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Re: [Emc-users] Plastic button routing

[Peter Homann]

Ye Steve is correct. I machine the soft plastic in these cases. The spindle 
speed is 1000rpm or less with a single flute 1/8" bit.

http://homanndesigns.com/index.php?option=com_content&view=article&id=56:mp-03-cnc-pendant-kit&catid=34:cnc-projects&Itemid=55

http://homanndesigns.com/images/stories/MP-03Pendant/MilledEnclosure.jpg

I slow the spindle down until I get the correct looking chips coming off.

Cheers,

Peter.

On 19/04/2013 7:21 AM, Steve Blackmore wrote:
> On Thu, 18 Apr 2013 07:29:46 -0400, you wrote:
>
>> Hmm.  I wonder how many folks who own a cnc router would let somebody else
>> do something like this?  My bro-in-law has a laser engraver, but to get a
>> paintable depth would take a lot longer than the 20 seconds per but its
>> taking me.
>
> Must be a slow one? Most these days do anywhere between 1000 and 5000
> inches per minute!
>
>> So the suggestion is that a v bit is not going to curl the edges the same
>> as an end mill?
>
> No - if you get the feed and speed right. As Marius said, slow down the
> speed and up the feed, you want it to cut, not rub.
>
> Steve Blackmore
> --
>
> --
> Precog is a next-generation analytics platform capable of advanced
> analytics on semi-structured data. The platform includes APIs for building
> apps and a phenomenal toolset for data science. Developers can use
> our toolset for easy data analysis & visualization. Get a free account!
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Re: [Emc-users] Plastic button routing

[Steve Blackmore]

On Thu, 18 Apr 2013 07:29:46 -0400, you wrote:

>Hmm.  I wonder how many folks who own a cnc router would let somebody else
>do something like this?  My bro-in-law has a laser engraver, but to get a
>paintable depth would take a lot longer than the 20 seconds per but its
>taking me.

Must be a slow one? Most these days do anywhere between 1000 and 5000
inches per minute!

>So the suggestion is that a v bit is not going to curl the edges the same
>as an end mill?

No - if you get the feed and speed right. As Marius said, slow down the
speed and up the feed, you want it to cut, not rub.

Steve Blackmore
--

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Re: [Emc-users] Plastic button routing

[Ben Potter]

Oops, I missed that part. Your feed/speed make more sense now. I'd still be
tempted to use a v-bit for that part and a 'V-Carve/Engraving' toolpath.
While it's a bit on the small side, it *should* give nice clean corners too.
It depends if your script will handle the Z motion correctly for that
toolpath type.

> From: Erik Friesen [mailto:e...@aercon.net]

> Yes, but.. a .020" snaps if you look at it wrong.
> 
> 
> On Thu, Apr 18, 2013 at 2:57 PM, Ben Potter  wrote:
> 
>> That seems extremely slow. I can't see a mention of what the plastic
>> you're cutting is but for Corian or acrylic with a 60 degree v-bit I
>> tend to run at around 1800 mm/min, 3mm DOC, 16k to 20k on the
>> spindle
>> - I adjust that by ear.
>> 
>> I would run faster - but my router caps out at 2000 mm/min.
>> 
>> At 15 IPM I'd be concerned about rubbing at anything over ~4000 rpm.
>> 
>> YMMV
>> Ben
>> 


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Re: [Emc-users] Plastic button routing

[Erik Friesen]

Yes, but.. a .020" snaps if you look at it wrong.


On Thu, Apr 18, 2013 at 2:57 PM, Ben Potter  wrote:

> That seems extremely slow. I can't see a mention of what the plastic you're
> cutting is but for Corian or acrylic with a 60 degree v-bit I tend to run
> at
> around 1800 mm/min, 3mm DOC, 16k to 20k on the spindle - I adjust that by
> ear.
>
> I would run faster - but my router caps out at 2000 mm/min.
>
> At 15 IPM I'd be concerned about rubbing at anything over ~4000 rpm.
>
> YMMV
> Ben
>
> > From: Erik Friesen [mailto:e...@aercon.net]
> > I'll try that.  I am currently cutting .015" deep, probably around
> > 32000 rpm and 15 ipm.
> >
> >
> > On Thu, Apr 18, 2013 at 7:36 AM, Marius Liebenberg
> > wrote:
> >
> >> Make sure that your spindle speed is as slow as you can go with it.
> >> I found to get a neat clean cut with plastics, I have to turn the
> >> speed way down. The feed can be fast. You want to get nice chips. If
> >> you go too slow or the spindle speed is too high, the plastic tends
> >> to melt at the edges instead of being cut away.
> >>
>
>
>
> --
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Re: [Emc-users] Plastic button routing

[Ben Potter]

That seems extremely slow. I can't see a mention of what the plastic you're
cutting is but for Corian or acrylic with a 60 degree v-bit I tend to run at
around 1800 mm/min, 3mm DOC, 16k to 20k on the spindle - I adjust that by
ear. 

I would run faster - but my router caps out at 2000 mm/min. 

At 15 IPM I'd be concerned about rubbing at anything over ~4000 rpm.

YMMV
Ben
 
> From: Erik Friesen [mailto:e...@aercon.net]
> I'll try that.  I am currently cutting .015" deep, probably around
> 32000 rpm and 15 ipm.
> 
> 
> On Thu, Apr 18, 2013 at 7:36 AM, Marius Liebenberg
> wrote:
> 
>> Make sure that your spindle speed is as slow as you can go with it.
>> I found to get a neat clean cut with plastics, I have to turn the
>> speed way down. The feed can be fast. You want to get nice chips. If
>> you go too slow or the spindle speed is too high, the plastic tends
>> to melt at the edges instead of being cut away.
>> 


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Re: [Emc-users] Plastic button routing

[Erik Friesen]

I'll try that.  I am currently cutting .015" deep, probably around 32000
rpm and 15 ipm.


On Thu, Apr 18, 2013 at 7:36 AM, Marius Liebenberg
wrote:

> Make sure that your spindle speed is as slow as you can go with it. I
> found to get a neat clean cut with plastics, I have to turn the speed
> way down. The feed can be fast. You want to get nice chips. If you go
> too slow or the spindle speed is too high, the plastic tends to melt at
> the edges instead of being cut away.
>
> On 2013/04/17 02:58 PM, Marcus Bowman wrote:
> > Are you creating it in VCarve Pro by using the Quick Engrave tool or the
> VCarve tool?
> >
> > Regards,
> >
> > Marcus
> >
> >
> >
> > On 17 Apr 2013, at 12:14, Erik Friesen wrote:
> >
> >> I am routing some lettering on some small plastic buttons with a .020
> ball
> >> nose feeding at 15 ipm.  I am using vcarve pro to create the lettering,
> >> using Norm West 1L, or a single line font.  I am using create profile,
> on,
> >> to route the line, and doing two passes, one conventional, one climb,
> in an
> >> attempt to minimize the plastic from leaving a curled edge on the cut.
>  It
> >> isn't working well enough.  Really, I need to be cutting this as a
> vector
> >> that is .001" wide, and routing it all conventional, as I think this
> would
> >> fix the edge problem.  Not sure how to get there with Vcarve pro though.
> >> Any other suggestions out there?
> >>
> --
> >> Precog is a next-generation analytics platform capable of advanced
> >> analytics on semi-structured data. The platform includes APIs for
> building
> >> apps and a phenomenal toolset for data science. Developers can use
> >> our toolset for easy data analysis & visualization. Get a free account!
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> >> ___
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> >> https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> >
>
> --
> Regards / Groete
>
> Marius D. Liebenberg
> MasterCut cc
> Cel: +27 82 698 3251
> Tel: +27 12 743 6064
> Fax: +27 86 551 8029
> Skype: marius_d.liebenberg
> Skype Me^(TM)! 
> Get Skype  and call me for free.
>
>
>
>
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Re: [Emc-users] Plastic button routing

[Marius Liebenberg]

Make sure that your spindle speed is as slow as you can go with it. I 
found to get a neat clean cut with plastics, I have to turn the speed 
way down. The feed can be fast. You want to get nice chips. If you go 
too slow or the spindle speed is too high, the plastic tends to melt at 
the edges instead of being cut away.

On 2013/04/17 02:58 PM, Marcus Bowman wrote:
> Are you creating it in VCarve Pro by using the Quick Engrave tool or the 
> VCarve tool?
>
> Regards,
>
> Marcus
>
>
>
> On 17 Apr 2013, at 12:14, Erik Friesen wrote:
>
>> I am routing some lettering on some small plastic buttons with a .020 ball
>> nose feeding at 15 ipm.  I am using vcarve pro to create the lettering,
>> using Norm West 1L, or a single line font.  I am using create profile, on,
>> to route the line, and doing two passes, one conventional, one climb, in an
>> attempt to minimize the plastic from leaving a curled edge on the cut.  It
>> isn't working well enough.  Really, I need to be cutting this as a vector
>> that is .001" wide, and routing it all conventional, as I think this would
>> fix the edge problem.  Not sure how to get there with Vcarve pro though.
>> Any other suggestions out there?
>> --
>> Precog is a next-generation analytics platform capable of advanced
>> analytics on semi-structured data. The platform includes APIs for building
>> apps and a phenomenal toolset for data science. Developers can use
>> our toolset for easy data analysis & visualization. Get a free account!
>> http://www2.precog.com/precogplatform/slashdotnewsletter
>> ___
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>> https://lists.sourceforge.net/lists/listinfo/emc-users
>
>

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MasterCut cc
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Tel: +27 12 743 6064
Fax: +27 86 551 8029
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Re: [Emc-users] Plastic button routing

[Erik Friesen]

Hmm.  I wonder how many folks who own a cnc router would let somebody else
do something like this?  My bro-in-law has a laser engraver, but to get a
paintable depth would take a lot longer than the 20 seconds per but its
taking me.

So the suggestion is that a v bit is not going to curl the edges the same
as an end mill?

I found the vector offset tool and figured out how to do what I am after,
will give that a try.


On Thu, Apr 18, 2013 at 3:13 AM, Steve Blackmore  wrote:

> On Wed, 17 Apr 2013 18:02:15 -0400, you wrote:
>
> >I wrote my own script to handle the curved surface.  I wrote a custom post
> >processor for this as well, it works well enough for the button curve.
> >
> >I am using the Create Vector tool within vcarve.
> >
> >This is getting infilled with black enamel, and cleaned once dry with
> >Naptha.
> >
> >I did a number of these with a .015 tip, they plug with plastic and break.
> > I suppose a v bit could work, but I think managing the cut width would be
> >troublesome.  The way I am doing this currently, the width of the cut is
> >the font trace width.  If there was a way to trace .001 on the outside of
> >the letter vector, it would work great.
>
> Engraving V bits don't have a point, they cut sloping sided flat
> bottomed grooves. VCarve works out the depth of cut for you for the
> given stroke width and tool included angle.
>
> Have a look at one of my old pages about them
>
> http://www.pilotltd.net/engraving.htm
>
> They would work fine, if you have a machine capable of doing the
> required feeds and speeds.
>
> Do you know anybody with a laser engraver/cutter? That would be far
> quicker and should be capable of giving a neat cut you can paint fill in
> either stroke width or font outline.
>
>
> Steve Blackmore
> --
>
>
> --
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Re: [Emc-users] Plastic button routing

[Steve Blackmore]

On Wed, 17 Apr 2013 18:02:15 -0400, you wrote:

>I wrote my own script to handle the curved surface.  I wrote a custom post
>processor for this as well, it works well enough for the button curve.
>
>I am using the Create Vector tool within vcarve.
>
>This is getting infilled with black enamel, and cleaned once dry with
>Naptha.
>
>I did a number of these with a .015 tip, they plug with plastic and break.
> I suppose a v bit could work, but I think managing the cut width would be
>troublesome.  The way I am doing this currently, the width of the cut is
>the font trace width.  If there was a way to trace .001 on the outside of
>the letter vector, it would work great.

Engraving V bits don't have a point, they cut sloping sided flat
bottomed grooves. VCarve works out the depth of cut for you for the
given stroke width and tool included angle.

Have a look at one of my old pages about them

http://www.pilotltd.net/engraving.htm

They would work fine, if you have a machine capable of doing the
required feeds and speeds.

Do you know anybody with a laser engraver/cutter? That would be far
quicker and should be capable of giving a neat cut you can paint fill in
either stroke width or font outline.
  

Steve Blackmore
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Re: [Emc-users] Plastic button routing

[Erik Friesen]

I wrote my own script to handle the curved surface.  I wrote a custom post
processor for this as well, it works well enough for the button curve.

I am using the Create Vector tool within vcarve.

This is getting infilled with black enamel, and cleaned once dry with
Naptha.

I did a number of these with a .015 tip, they plug with plastic and break.
 I suppose a v bit could work, but I think managing the cut width would be
troublesome.  The way I am doing this currently, the width of the cut is
the font trace width.  If there was a way to trace .001 on the outside of
the letter vector, it would work great.

The button ellipse is 0.600" x 0.315"

www.aercon.net/Public/SANY0523.JPG
www.aercon.net/Public/SANY0522.JPG


On Wed, Apr 17, 2013 at 9:14 AM, Tom Penner  wrote:

> Send me the artwork and I will run it through EnRoute, which can handle 3D
> engraving on a curved surface much better. Depending on the plastic you
> will probably be happier with an engraving tool with a small tip (.001 or
> .005 need to see the artwork) That tip gives you a little rotation to
> actually cut the material rather than rub and melt.
> I will also need the spec on the shape of the button as I will create a 3d
> surface to match that EnRoute will follow when creating the engrave
> toolpath.
>
> Thos.
>
>
> On Wed, Apr 17, 2013 at 7:14 AM, Erik Friesen  wrote:
>
> > I am routing some lettering on some small plastic buttons with a .020
> ball
> > nose feeding at 15 ipm.  I am using vcarve pro to create the lettering,
> > using Norm West 1L, or a single line font.  I am using create profile,
> on,
> > to route the line, and doing two passes, one conventional, one climb, in
> an
> > attempt to minimize the plastic from leaving a curled edge on the cut.
>  It
> > isn't working well enough.  Really, I need to be cutting this as a vector
> > that is .001" wide, and routing it all conventional, as I think this
> would
> > fix the edge problem.  Not sure how to get there with Vcarve pro though.
> >  Any other suggestions out there?
> >
> >
> --
> > Precog is a next-generation analytics platform capable of advanced
> > analytics on semi-structured data. The platform includes APIs for
> building
> > apps and a phenomenal toolset for data science. Developers can use
> > our toolset for easy data analysis & visualization. Get a free account!
> > http://www2.precog.com/precogplatform/slashdotnewsletter
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> >
>
> --
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Re: [Emc-users] Plastic button routing

[Tom Penner]

Send me the artwork and I will run it through EnRoute, which can handle 3D
engraving on a curved surface much better. Depending on the plastic you
will probably be happier with an engraving tool with a small tip (.001 or
.005 need to see the artwork) That tip gives you a little rotation to
actually cut the material rather than rub and melt.
I will also need the spec on the shape of the button as I will create a 3d
surface to match that EnRoute will follow when creating the engrave
toolpath.

Thos.


On Wed, Apr 17, 2013 at 7:14 AM, Erik Friesen  wrote:

> I am routing some lettering on some small plastic buttons with a .020 ball
> nose feeding at 15 ipm.  I am using vcarve pro to create the lettering,
> using Norm West 1L, or a single line font.  I am using create profile, on,
> to route the line, and doing two passes, one conventional, one climb, in an
> attempt to minimize the plastic from leaving a curled edge on the cut.  It
> isn't working well enough.  Really, I need to be cutting this as a vector
> that is .001" wide, and routing it all conventional, as I think this would
> fix the edge problem.  Not sure how to get there with Vcarve pro though.
>  Any other suggestions out there?
>
> --
> Precog is a next-generation analytics platform capable of advanced
> analytics on semi-structured data. The platform includes APIs for building
> apps and a phenomenal toolset for data science. Developers can use
> our toolset for easy data analysis & visualization. Get a free account!
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Re: [Emc-users] Plastic button routing

[Marcus Bowman]

Are you creating it in VCarve Pro by using the Quick Engrave tool or the VCarve 
tool?

Regards,

Marcus



On 17 Apr 2013, at 12:14, Erik Friesen wrote:

> I am routing some lettering on some small plastic buttons with a .020 ball
> nose feeding at 15 ipm.  I am using vcarve pro to create the lettering,
> using Norm West 1L, or a single line font.  I am using create profile, on,
> to route the line, and doing two passes, one conventional, one climb, in an
> attempt to minimize the plastic from leaving a curled edge on the cut.  It
> isn't working well enough.  Really, I need to be cutting this as a vector
> that is .001" wide, and routing it all conventional, as I think this would
> fix the edge problem.  Not sure how to get there with Vcarve pro though.
> Any other suggestions out there?
> --
> Precog is a next-generation analytics platform capable of advanced
> analytics on semi-structured data. The platform includes APIs for building
> apps and a phenomenal toolset for data science. Developers can use
> our toolset for easy data analysis & visualization. Get a free account!
> http://www2.precog.com/precogplatform/slashdotnewsletter
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


--
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analytics on semi-structured data. The platform includes APIs for building
apps and a phenomenal toolset for data science. Developers can use
our toolset for easy data analysis & visualization. Get a free account!
http://www2.precog.com/precogplatform/slashdotnewsletter
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[Emc-users] Plastic button routing

[Erik Friesen]

I am routing some lettering on some small plastic buttons with a .020 ball
nose feeding at 15 ipm.  I am using vcarve pro to create the lettering,
using Norm West 1L, or a single line font.  I am using create profile, on,
to route the line, and doing two passes, one conventional, one climb, in an
attempt to minimize the plastic from leaving a curled edge on the cut.  It
isn't working well enough.  Really, I need to be cutting this as a vector
that is .001" wide, and routing it all conventional, as I think this would
fix the edge problem.  Not sure how to get there with Vcarve pro though.
 Any other suggestions out there?
--
Precog is a next-generation analytics platform capable of advanced
analytics on semi-structured data. The platform includes APIs for building
apps and a phenomenal toolset for data science. Developers can use
our toolset for easy data analysis & visualization. Get a free account!
http://www2.precog.com/precogplatform/slashdotnewsletter
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users