Re: [Emc-users] HAL and INI file settings for Tool length Probing.

[Kirk Wallace]

On Fri, 2011-09-09 at 01:31 -0400, Don Stanley wrote:
> Hi Jon;
> Presently I am using the hollow R8 collets waiting for someone to
> develop a tool changer for the R8 machines before buying a pot full of
> the R8 end mill holders. My work has been mostly one of a kind so far
> but will soon switch to batch jobs and I will be forced to the end mill
> holders
> with or without a Tool Changer.
> 
> Do you know of any R8 tool changers that cost less than a mill?
> Or maybe a good design that could be duplicated?

Have you seen the Tormach holders?:
http://www.tormach.com/Product_TTS2.html 

May be useable with a rack type changer:
http://www.youtube.com/watch?v=etfmFJKksgQ 

http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?RackToolChanger 

http://www.cnccookbook.com/CCMillDrawbar.html 

There should be a couple of people on this list that have made stud
puller type draw bars, but I have lost the links. ... Found one -- Andy
has a video here:
http://www.youtube.com/watch?v=pxrzJ_KfcQ0 

If you were going to invest in a lot of tool holders, I would consider
grinding the R8 spindle taper to use CAT30 or one of the other 30
tapers.
http://www.tools-n-gizmos.com/specs/Tapers.html 


-- 
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com/E45/index.html
California, USA


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Re: [Emc-users] M3/M4 and M5

[Steve Blackmore]

On Thu, 8 Sep 2011 23:34:59 -0700, you wrote:

>When I tried it (before I discovered M67 wasn't working in 2.4) what I
>found was that the motion planner slows down at each segment making it
>useless for engraving.  My theory (which I haven't verified in the code
>because it's a bit of a maze to the uninitiated!) is that the G64 support
>for making all those straight movements into a single pass is defeated
>by the M commands between the consecutive X moves.

Motion planner is also broken on line to arc transitions.

Steve Blackmore
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Re: [Emc-users] Mini boring bars.

[Steve Blackmore]

On Thu, 8 Sep 2011 00:23:53 +0100, you wrote:

>I am rather a fan of the P Horn supermini boring bars. They are ideal
>for small bores on a lathe (or potentially with a boring head on a
>milling machine).
>They go down as small as 0.2mm, but that's just silly. I find the
>couple I have (and the holder I made) to be very useful for bores in
>the 5mm - 20mm range.
>
>There is a job lot on eBay.uk  at the moment, 110 of them.
>
>I don't need that many, so they are only worth about £50 to me. The
>thing is that 10 of them is probably worth £50 to me. Is anyone else
>interested in investing in a share?

Hi Andy - put me down for a share.

Thanks

Steve Blackmore
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Re: [Emc-users] M3/M4 and M5

[Peter Georgi]

Hi Gene,

I'm sorry if you have troubles with my mails. The
clock in my computer is set korrect to European
mean time, meaning two houres bevore UTC, becaus
we still have summer time. It is synchronized with
"swisstime.ethz.ch".

Regards Peter

-Ursprüngliche Nachricht-
Von: ghesk...@wdtv.com [mailto:ghesk...@wdtv.com] 
Gesendet: Mittwoch, 7. September 2011 15:13
An: Enhanced Machine Controller (EMC)
Betreff: Re: [Emc-users] M3/M4 and M5

> Thank you to all who helped. It works with S1.
>
> Peter
>
Is the clock in your computer correct?  Your
messages are causing a syntax error in
mailfilter-0.8.2 here, requiring me to fire up a
web browser and delete them from the server before
fetchmail will pull the remaining messages.

I think its a mailfilter bug that can't handle
times the other side of Grenich, but

> -Ursprüngliche Nachricht-
> Von: Chris Morley
> [mailto:chrisinnana...@hotmail.com]
> Gesendet: Samstag, 3. September 2011 19:10
> An: EMC
> Betreff: Re: [Emc-users] M3/M4 and M5
>
>
>
>>
>> This gives me in the Axis display to buttons to
> turn the spindle on
>> and off. When pressing the two buttons with the
> left mouse button or
>> F9 the pin
>> 14 followes the state of the buttons of the
> display, maening going
>> high and low. When trying to turn the spindle
on
> with M3 or M4, from
>> the MDI console or from a G-Code file, the
> buttons follow the commands
>> (M3 / M4) but not the pin 14. When I manualy
> turn the spindel on with
>> the mouse or F9, the command M5 turns the
> spindel off and pin 14 goes
>> low representing the state of the buttons.
>>
>> What did I wrong?
>>
>> Any help would be higly appreciated.
>>
>
> Its a quirk of EMC. Try setting a spindle speed.
> eg s1 before setting m3 or m4 (AXIS does this
> internally)
>
> Chris M
>
>
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Re: [Emc-users] HAL and INI file settings for Tool length Probing.

[andy pugh]

On 9 September 2011 08:29, Kirk Wallace  wrote:

> Have you seen the Tormach holders?:
> http://www.tormach.com/Product_TTS2.html

They made a prototype drawbar for TTS, but I don't know if it made it
to production:
http://www.youtube.com/watch?v=-kxw9d6kI7A

> There should be a couple of people on this list that have made stud
> puller type draw bars, but I have lost the links. ... Found one -- Andy
> has a video here:
> http://www.youtube.com/watch?v=pxrzJ_KfcQ0

A bit more information here:
http://www.cnczone.com/forums/vertical_mill_lathe_project_log/109301-harrison_universal_miller_conversion.html

This spreadsheet should help with working out the spring stack length
and which sizes to use.
http://www.bodgesoc.org/DIN2093DiscSprings.xls
If you read off the required load on the left, then project across to
the line representing a particular spring, then down to the X axis you
can read off the available further deflection to flat of a 100mm stack
of those springs. x2 means a doubled-up stack, ie two pointing up,
then 2 pointing down, then 2 pointing up rather than a simple
up-down-up-down stack.

-- 
atp
"Torque wrenches are for the obedience of fools and the guidance of wise men"

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Re: [Emc-users] M3/M4 and M5

[andy pugh]

On 9 September 2011 07:34, Ben Jackson  wrote:

> When I tried it (before I discovered M67 wasn't working in 2.4) what I
> found was that the motion planner slows down at each segment making it
> useless for engraving.

As far as I can tell from my tests M67 does not change the motion
speed. (Which is rather the point of M67 in contrast to M68).

-- 
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Re: [Emc-users] M3/M4 and M5

[John Thornton]

I think you made that up or like me have a poor memory for details or 
the memory is of a previous lifetime or previous version of EMC. I can 
never tell so I just have to look things up.

S and M3 4 5 can be on the same line as shown in the order of execution. 
And I  know having S and M3 works on the same line as I do it everyday 
on my lathe. For my plasma I just do a S1 M3 to fire off the torch.

http://www.linuxcnc.org/docview/html/gcode_overview.html#sec:Order-of-Execution

John

On 9/8/2011 6:25 PM, gene heskett wrote:
> On Thursday, September 08, 2011 07:20:45 PM Cliff Blackburn did opine:
>
>> I think you just need to issue a spindle speed command greater then zero
>> with your M3 command.
>>
>> e.g.
>>
>> M3 S100
>> ...
>> M5
>>
> I don't think that will work, but this should:
>
> ...
> S100
> M3
> ...
> M5
>
> I believe it is written someplace that setting the speed to a non-zero
> value must be done at least a line before the Spindle on command is issued,
> it has to be in effect when the Spindle On is given.
>
>> On 9/3/2011 9:27 AM, Peter Georgi wrote:
>>> Hi everybody,
>>>
>>> I'm using EMC2_2.4.4 for my hotwire foam cutting
>>> machine. Almost every thing runs fine and I'm very
>>> happy with EMC.
>>>
>>> To start the heating of the hotwire I use a relay,
>>> wich is actuated by pin 14 through a break out
>>> board, to switch the heating power on and off. The
>>> hardware works fine. The "StepConfig Wizard"
>>> genrated the following lines to turn the spindel
>>> on and off:
>>>
>>> net spindle-cmd<= motion.spindle-speed-out
>>> net spindle-on<= motion.spindle-on
>>> net spindle-on =>   parport.0.pin-14-out
>>>
>>> This gives me in the Axis display to buttons to
>>> turn the spindle on and off. When pressing the two
>>> buttons with the left mouse button or F9 the pin
>>> 14 followes the state of the buttons of the
>>> display, maening going high and low. When trying
>>> to turn the spindle on with M3 or M4, from the MDI
>>> console or from a G-Code file, the buttons follow
>>> the commands (M3 / M4) but not the pin 14. When I
>>> manualy turn the spindel on with the mouse or F9,
>>> the command M5 turns the spindel off and pin 14
>>> goes low representing the state of the buttons.
>>>
>>> What did I wrong?
>>>
>>> Any help would be higly appreciated.
>>>
>>>
>>> Regards Peter
>>>
>>>
>>>
>>> --
>>>  Special Offer -- Download ArcSight Logger for FREE!
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>>> price-free! And you'll get a free "Love Thy Logs" t-shirt when you
>>> download Logger. Secure your free ArcSight Logger TODAY!
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> Cheers, gene

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Re: [Emc-users] M3/M4 and M5

[John Thornton]

http://www.linuxcnc.org/docview/html/gcode_overview.html#sec:Order-of-Execution

On 9/8/2011 6:40 PM, gene heskett wrote:
> On Thursday, September 08, 2011 07:39:16 PM sa...@empirescreen.com did
> opine:
>
>> Heh - I don't think so - I do S2000m03 all the time.
>>
>> sam
>>
> I believe that because the line is read from left to right, that your
> version should also work.
>
>> On Thu, 8 Sep 2011 19:25:34 -0400
>>
>>   gene heskett  wrote:
>>> On Thursday, September 08, 2011 07:20:45 PM Cliff Blackburn did opine:
 I think you just need to issue a spindle speed command greater then
 zero with your M3 command.

 e.g.

 M3 S100
 ...
 M5
>>> I don't think that will work, but this should:
>>>
>>> ...
>>> S100
>>> M3
>>> ...
>>> M5
>>>
>>> I believe it is written someplace that setting the speed to a non-zero
>>> value must be done at least a line before the Spindle on command is
>>> issued, it has to be in effect when the Spindle On is given.
>>>
 On 9/3/2011 9:27 AM, Peter Georgi wrote:
> Hi everybody,
>
> I'm using EMC2_2.4.4 for my hotwire foam cutting
> machine. Almost every thing runs fine and I'm very
> happy with EMC.
>
> To start the heating of the hotwire I use a relay,
> wich is actuated by pin 14 through a break out
> board, to switch the heating power on and off. The
> hardware works fine. The "StepConfig Wizard"
> genrated the following lines to turn the spindel
> on and off:
>
> net spindle-cmd<= motion.spindle-speed-out
> net spindle-on<= motion.spindle-on
> net spindle-on =>   parport.0.pin-14-out
>
> This gives me in the Axis display to buttons to
> turn the spindle on and off. When pressing the two
> buttons with the left mouse button or F9 the pin
> 14 followes the state of the buttons of the
> display, maening going high and low. When trying
> to turn the spindle on with M3 or M4, from the MDI
> console or from a G-Code file, the buttons follow
> the commands (M3 / M4) but not the pin 14. When I
> manualy turn the spindel on with the mouse or F9,
> the command M5 turns the spindel off and pin 14
> goes low representing the state of the buttons.
>
> What did I wrong?
>
> Any help would be higly appreciated.
>
>
> Regards Peter
>
>
>
> --
>   Special Offer -- Download ArcSight Logger for FREE!
> Finally, a world-class log management solution at an even better
> price-free! And you'll get a free "Love Thy Logs" t-shirt when
> you download Logger. Secure your free ArcSight Logger TODAY!
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>>> Cheers, gene
>> 
>> -- Doing More with Less: The Next Generation Virtual Desktop
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>> businesses from deploying virtual desktops?   How do next-generation
>> virtual desktops provide companies an easier-to-deploy,
>> easier-to-manage and more affordable virtual desktop
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>
> Cheers, gene

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Re: [Emc-users] HAL and INI file settings for Tool length Probing.

[John Thornton]

If it is a BP knee mill you can get a Quick Switch 200 spindle and set 
each tool offset before you run. You still have to swap by hand but it 
is repeatable and quick. My BP Series 1 with Anilam conversion is set up 
this way.

John

On 9/9/2011 12:31 AM, Don Stanley wrote:
> Hi Jon;
> Presently I am using the hollow R8 collets waiting for someone to
> develop a tool changer for the R8 machines before buying a pot full of
> the R8 end mill holders. My work has been mostly one of a kind so far
> but will soon switch to batch jobs and I will be forced to the end mill
> holders
> with or without a Tool Changer.
>
> Do you know of any R8 tool changers that cost less than a mill?
> Or maybe a good design that could be duplicated?
>
>  Thanks
>  Don
>
> On Thu, Sep 8, 2011 at 10:23 PM, Jon Elson  wrote:
>
>> andy pugh wrote:
>>> If you don't have a tool setter, but can measure the tool-length
>>> (maybe even just height-above-table measured with a caliper with a
>>> suitable choice of toolchange position) then the G10 could pull a
>>> measurement out of a textbox in a GladeVCP panel.
>>>
>> If the OP has a way to repeatably install tools, such as end mill
>> holders instead of collets,
>> then he can measure the tools in several ways and put the length offsets
>> in the tool table.
>> Then, the tool length can be set from the tool table when the tool is
>> put in the spindle.
>> See http://pico-systems.com/preset.html for one method of doing this.
>> You can also measure
>> the length of the tool on the machine and calculate the offset to put in
>> the tool table.
>>
>> Jon
>>
>>
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Re: [Emc-users] M3/M4 and M5

[gheskett]

> Hi Gene,
>
> I'm sorry if you have troubles with my mails. The
> clock in my computer is set korrect to European
> mean time, meaning two houres bevore UTC, becaus
> we still have summer time. It is synchronized with
> "swisstime.ethz.ch".
>
> Regards Peter
>
And there is the clue I was looking for.  I am still on 'daylight savings
time' here, so my normal time is UTC - 4:00, and it will be UTC -0500
after 1 October.

So your post was at 08:27 (I assume your local time) which equals UTC + 0200
But your headers are saying only that 4 hour difference, not the 6 hours
one would expect if you were 6 hours east of me.  This is true of all
timestamps the emc server inserts.

Humm, but then the Date: line says Fri, 9 Sep 2011 10:27:42 +0200
which is correct for your local time with the 6 hour diff.

So I believe its a bug in mailfilter.

Thanks Peter.


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[Emc-users] Foxconn motherboard

[Viesturs Lācis]

Hello, folks!

I would like anyone with experience with Foxconn to share, if I have
any chance to get their D525 board working with Mesa 7i43 card. I have
2 D525 boars and 2 7i43 boards and none of them seem to work.

Viesturs

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Re: [Emc-users] M3/M4 and M5

[gene heskett]

On Friday, September 09, 2011 07:40:25 AM John Thornton did opine:

> I think you made that up or like me have a poor memory for details or
> the memory is of a previous lifetime or previous version of EMC. I can
> never tell so I just have to look things up.
 
I am pretty sure John, but don't have the depth of list archive here to 
prove it, that this was a question I posted, probably back about emc-2.2.x 
days because I had a bit of code I had written in the style of m3 s100 
which failed, and I was told at that time (yonks ago now) that the S 
command needed to be on a line previous to the M3-M4 commands.  That then 
worked for me, and I assumed it was still true.  Assumed, that famous 
word...

> S and M3 4 5 can be on the same line as shown in the order of execution.
> And I  know having S and M3 works on the same line as I do it everyday
> on my lathe. For my plasma I just do a S1 M3 to fire off the torch.
> 
> http://www.linuxcnc.org/docview/html/gcode_overview.html#sec:Order-of-Ex
> ecution
> 
> John
> 
> On 9/8/2011 6:25 PM, gene heskett wrote:
> > On Thursday, September 08, 2011 07:20:45 PM Cliff Blackburn did opine:
> >> I think you just need to issue a spindle speed command greater then
> >> zero with your M3 command.
> >> 
> >> e.g.
> >> 
> >> M3 S100
> >> ...
> >> M5
> > 
> > I don't think that will work, but this should:
> > 
> > ...
> > S100
> > M3
> > ...
> > M5
> > 
> > I believe it is written someplace that setting the speed to a non-zero
> > value must be done at least a line before the Spindle on command is
> > issued, it has to be in effect when the Spindle On is given.
> > 
> >> On 9/3/2011 9:27 AM, Peter Georgi wrote:
> >>> Hi everybody,
> >>> 
> >>> I'm using EMC2_2.4.4 for my hotwire foam cutting
> >>> machine. Almost every thing runs fine and I'm very
> >>> happy with EMC.
> >>> 
> >>> To start the heating of the hotwire I use a relay,
> >>> wich is actuated by pin 14 through a break out
> >>> board, to switch the heating power on and off. The
> >>> hardware works fine. The "StepConfig Wizard"
> >>> genrated the following lines to turn the spindel
> >>> on and off:
> >>> 
> >>> net spindle-cmd<= motion.spindle-speed-out
> >>> net spindle-on<= motion.spindle-on
> >>> net spindle-on =>   parport.0.pin-14-out
> >>> 
> >>> This gives me in the Axis display to buttons to
> >>> turn the spindle on and off. When pressing the two
> >>> buttons with the left mouse button or F9 the pin
> >>> 14 followes the state of the buttons of the
> >>> display, maening going high and low. When trying
> >>> to turn the spindle on with M3 or M4, from the MDI
> >>> console or from a G-Code file, the buttons follow
> >>> the commands (M3 / M4) but not the pin 14. When I
> >>> manualy turn the spindel on with the mouse or F9,
> >>> the command M5 turns the spindel off and pin 14
> >>> goes low representing the state of the buttons.
> >>> 
> >>> What did I wrong?
> >>> 
> >>> Any help would be higly appreciated.
> >>> 
> >>> 
> >>> Regards Peter
> >>> 
> >>> 
> >>> 
> >>> 
> >>> --  Special Offer -- Download ArcSight Logger for FREE!
> >>> Finally, a world-class log management solution at an even better
> >>> price-free! And you'll get a free "Love Thy Logs" t-shirt when you
> >>> download Logger. Secure your free ArcSight Logger TODAY!
> >>> http://p.sf.net/sfu/arcsisghtdev2dev
> >>> ___
> >>> Emc-users mailing list
> >>> Emc-users@lists.sourceforge.net
> >>> https://lists.sourceforge.net/lists/listinfo/emc-users
> >> 
> >> -
> >> --- -- Doing More with Less: The Next Generation Virtual Desktop
> >> What are the key obstacles that have prevented many mid-market
> >> businesses from deploying virtual desktops?   How do next-generation
> >> virtual desktops provide companies an easier-to-deploy,
> >> easier-to-manage and more affordable virtual desktop
> >> model.http://www.accelacomm.com/jaw/sfnl/114/51426474/
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> > Cheers, gene
> 
> 
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Re: [Emc-users] HAL and INI file settings for Tool length Probing.

[andy pugh]

On 9 September 2011 12:13, John Thornton  wrote:
> If it is a BP knee mill you can get a Quick Switch 200 spindle and set
> each tool offset before you run.

There is also this system: http://www.royalprod.com/product.cfm?catID=11

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Re: [Emc-users] Foxconn motherboard

[Andrew]

2011/9/9 Viesturs Lācis 

> Hello, folks!
>
> I would like anyone with experience with Foxconn to share, if I have
> any chance to get their D525 board working with Mesa 7i43 card. I have
> 2 D525 boars and 2 7i43 boards and none of them seem to work.
>

FYI: my Intel D525MW works with 7i43.

Andrew
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Re: [Emc-users] M3/M4 and M5

[Kent A. Reed]

On 9/9/2011 7:09 AM, John Thornton wrote:
> http://www.linuxcnc.org/docview/html/gcode_overview.html#sec:Order-of-Execution
>
>
Well, as long as we're quoting emc2 docs, how about farther down the 
same overview page,

"3.5 Don't put too many things on one line
 Ignore everything in Section [the one cited above], and instead 
write no line of code that is the slightest bit ambiguous."


It seemed good advice when I first read it and it still does.

Regards,
Kent


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Re: [Emc-users] HAL and INI file settings for Tool length Probing.

[Jon Elson]

Don Stanley wrote:
> Hi Jon;
> Presently I am using the hollow R8 collets waiting for someone to
> develop a tool changer for the R8 machines before buying a pot full of
> the R8 end mill holders. My work has been mostly one of a kind so far
> but will soon switch to batch jobs and I will be forced to the end mill
> holders
> with or without a Tool Changer.
>
> Do you know of any R8 tool changers that cost less than a mill?
> Or maybe a good design that could be duplicated?
>   
I'm sure, if I wanted to, I could make a tool changer that would work 
with R-8.  But, it wouldn't
be really simple.  You'd probably
need some kind of standard ring to grip the holders with, and I'm not 
clear on how those could
be easily attached to all the different holders.  What I'm envisioning 
would end up looking a bit
like a miniaturized Cat V-flange holder.  You also need spindle orient 
unless you take the
key out of the spindle.

There is the Tormach TTS scheme that might be adaptable to a tool 
changer.  Maybe
magnetic rings could hold the holder while transferring it to the spindle.

Anyway, I found that without a changer, it makes MUCH more sense to 
change the work,
and do all procedures on ALL workpieces before changing the tool.  That 
may not work
as well for complex parts that require a lot of machining steps on each 
piece, but it works
for the parts I do.

Jon

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Re: [Emc-users] HAL and INI file settings for Tool length Probing.

[John Prentice]

Greetings
>
> There is the Tormach TTS scheme that might be adaptable to a tool
> changer.  Maybe
> magnetic rings could hold the holder while transferring it to the spindle.
>
First I declare an interest as I do work for Tormach.

The current design of TTS geometry allows for a tool changer.

There is a power drawbar and changer sold for the PCNCs. How easy it would 
be to fit top something else I cannot say.

http://www.tormach.com/document_library/Datasheets/DS32279_ATC.pdf

John Prentice 


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Re: [Emc-users] HAL and INI file settings for Tool length Probing.

[sam sokolik]

When I first started playing with emc - I was making circuit boards.  I 
was using a rotozip type head (small collet) and for me the easiest 
solution was to split the program up for each tool.  Then I found the 
gcode.ulp that Chris R and Jeff E wrote.   
http://git.unpy.net/view/eagle.git

it is quite slick - you need a switch that the tool can touch.

It works like this
You setup your first tool.  (set it for your material)  This could 
technically be done with the probe switch also - if you know the 
distance between the switch and your part.
Then when you run the Gcode - it first touches off the first tool to the 
probe switch.  This is your 'reference' length.
Now when the program pauses for the next tool - you replace it.
The first thing it does is probe the new tool length and offset it 
compared to your 'reference' tool.
sets the correct offset and continues on with the program.

It made making circuit boards with multitude mills and drills pretty 
painless.

sam


On 9/9/2011 1:01 PM, John Prentice wrote:
> Greetings
>> There is the Tormach TTS scheme that might be adaptable to a tool
>> changer.  Maybe
>> magnetic rings could hold the holder while transferring it to the spindle.
>>
> First I declare an interest as I do work for Tormach.
>
> The current design of TTS geometry allows for a tool changer.
>
> There is a power drawbar and changer sold for the PCNCs. How easy it would
> be to fit top something else I cannot say.
>
> http://www.tormach.com/document_library/Datasheets/DS32279_ATC.pdf
>
> John Prentice
>
>
> --
> Why Cloud-Based Security and Archiving Make Sense
> Osterman Research conducted this study that outlines how and why cloud
> computing security and archiving is rapidly being adopted across the IT
> space for its ease of implementation, lower cost, and increased
> reliability. Learn more. http://www.accelacomm.com/jaw/sfnl/114/51425301/
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>

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Re: [Emc-users] HAL and INI file settings for Tool length Probing.

[Don Stanley]

Thanks to All;
This will keep me busy for a while.
Don

On Fri, Sep 9, 2011 at 1:33 PM, Jon Elson  wrote:

> Don Stanley wrote:
> > Hi Jon;
> > Presently I am using the hollow R8 collets waiting for someone to
> > develop a tool changer for the R8 machines before buying a pot full of
> > the R8 end mill holders. My work has been mostly one of a kind so far
> > but will soon switch to batch jobs and I will be forced to the end mill
> > holders
> > with or without a Tool Changer.
> >
> > Do you know of any R8 tool changers that cost less than a mill?
> > Or maybe a good design that could be duplicated?
> >
> I'm sure, if I wanted to, I could make a tool changer that would work
> with R-8.  But, it wouldn't
> be really simple.  You'd probably
> need some kind of standard ring to grip the holders with, and I'm not
> clear on how those could
> be easily attached to all the different holders.  What I'm envisioning
> would end up looking a bit
> like a miniaturized Cat V-flange holder.  You also need spindle orient
> unless you take the
> key out of the spindle.
>
Jon
Taking the key out of the spindle was very easy when I hit the wrong
button on the CNC system Pendant I was using before EMC2.


>
> There is the Tormach TTS scheme that might be adaptable to a tool
> changer.  Maybe
> magnetic rings could hold the holder while transferring it to the spindle.
>
> Anyway, I found that without a changer, it makes MUCH more sense to
> change the work,
> and do all procedures on ALL workpieces before changing the tool.  That
> may not work
> as well for complex parts that require a lot of machining steps on each
> piece, but it works
> for the parts I do.
>
> Jon
>
>
> --
> Why Cloud-Based Security and Archiving Make Sense
> Osterman Research conducted this study that outlines how and why cloud
> computing security and archiving is rapidly being adopted across the IT
> space for its ease of implementation, lower cost, and increased
> reliability. Learn more. http://www.accelacomm.com/jaw/sfnl/114/51425301/
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Re: [Emc-users] HAL and INI file settings for Tool length Probing.

[Don Stanley]

Thanks Sam
I have just installed a version of that and am now
investigating how to be more efficient (lazy) with an
automatic Tool changer.
Don

On Fri, Sep 9, 2011 at 2:17 PM, sam sokolik  wrote:

> When I first started playing with emc - I was making circuit boards.  I
> was using a rotozip type head (small collet) and for me the easiest
> solution was to split the program up for each tool.  Then I found the
> gcode.ulp that Chris R and Jeff E wrote.
> http://git.unpy.net/view/eagle.git
>
> it is quite slick - you need a switch that the tool can touch.
>
> It works like this
> You setup your first tool.  (set it for your material)  This could
> technically be done with the probe switch also - if you know the
> distance between the switch and your part.
> Then when you run the Gcode - it first touches off the first tool to the
> probe switch.  This is your 'reference' length.
> Now when the program pauses for the next tool - you replace it.
> The first thing it does is probe the new tool length and offset it
> compared to your 'reference' tool.
> sets the correct offset and continues on with the program.
>
> It made making circuit boards with multitude mills and drills pretty
> painless.
>
> sam
>
>
> On 9/9/2011 1:01 PM, John Prentice wrote:
> > Greetings
> >> There is the Tormach TTS scheme that might be adaptable to a tool
> >> changer.  Maybe
> >> magnetic rings could hold the holder while transferring it to the
> spindle.
> >>
> > First I declare an interest as I do work for Tormach.
> >
> > The current design of TTS geometry allows for a tool changer.
> >
> > There is a power drawbar and changer sold for the PCNCs. How easy it
> would
> > be to fit top something else I cannot say.
> >
> > http://www.tormach.com/document_library/Datasheets/DS32279_ATC.pdf
> >
> > John Prentice
> >
> >
> >
> --
> > Why Cloud-Based Security and Archiving Make Sense
> > Osterman Research conducted this study that outlines how and why cloud
> > computing security and archiving is rapidly being adopted across the IT
> > space for its ease of implementation, lower cost, and increased
> > reliability. Learn more.
> http://www.accelacomm.com/jaw/sfnl/114/51425301/
> > ___
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> >
>
>
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[Emc-users] How to set 7i43 (Hostmot) stepgen to velocity mode?

[Tom Easterday]

I can't find documentation on how to set my 7i43 card stepgen to velocity mode. 
 Where would I look?
Thanks,
Tom
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Re: [Emc-users] How to set 7i43 (Hostmot) stepgen to velocity mode?

[Sebastian Kuzminsky]

It's cleverly hidden in the hostmot2(9) manage, in the stepgen section.  Look 
at the control-type pin.


On Sep 9, 2011, at 13:58 , Tom Easterday wrote:

> I can't find documentation on how to set my 7i43 card stepgen to velocity 
> mode.  Where would I look?
> Thanks,
> Tom
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[Emc-users] I found the first gotcha in the MM-542 drivers

[gene heskett]

The opto input labeled "enable+|-", is actually a disable.  That suits me 
as I didn't have the drive available to enable 4 of them in parallel 
anyway.  So now they are alive, and sitting at 50% current because I 
haven't told them to move.

So despite the cold I bought back from NY, leaving just as that 8" rain was 
getting started Tuesday morning, progress of sorts is being made.

I may get them moved to the mill and all hooked up tomorrow.  I have to fix 
the back cover to the box yet, 8 ea 6-32 holes to drill & tap, and hook up 
the spindle signals, this time on a plug, they were hard wired before.

Cheers, gene
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Re: [Emc-users] M67/68 and motion (was M3/M4 and M5)

[Ben Jackson]

On Fri, Sep 09, 2011 at 11:58:56AM +0100, andy pugh wrote:
> On 9 September 2011 07:34, Ben Jackson  wrote:
> 
> > When I tried it (before I discovered M67 wasn't working in 2.4) what I
> > found was that the motion planner slows down at each segment making it
> > useless for engraving.
> 
> As far as I can tell from my tests M67 does not change the motion
> speed. (Which is rather the point of M67 in contrast to M68).

M67 is just synchronized with motion while M68 is immediate.  The problem
for engraving is that a sequence G1 X1; M67 ...; G1 X2 ; ... to make a
sweep across X does not just accelerate to peak X speed and stay there.
It stutters along.  Without the M67 the G64 Q- will see those are co-linear
and produce a single, fast move.

(actually since M67 isn't implemented in 2.4 I'm sure I tried it with
M62/63 when I did it)

To engrave I'm now snooping axis.0.motor-pos-fb to synchronize with bitmap
data flowing in via "streamer".  A gcode subroutine just sweeps X back and
forth over a region with no knowledge that the laser is firing.  The same
technique could drive laser power (via pwmgen) except that the PWM isn't
fast enough.  I'd need external PWM assistance.

-- 
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Re: [Emc-users] M67/68 and motion (was M3/M4 and M5)

[Andy Pugh]

On 10 Sep 2011, at 01:22, Ben Jackson  wrote:

> The problem
> for engraving is that a sequence G1 X1; M67 ...; G1 X2 ; ... to make a
> sweep across X does not just accelerate to peak X speed and stay there.
> It stutters along.  Without the M67 the G64 Q- will see those are co-linear
> and produce a single, fast move.

We think we fixed G67 on wednesday. 
Are you saying it still does not work properly on a fresh build? 



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