Re: [Emc-users] C Compiler - MPLAB

[John Prentice]

Greetings

- Original Message - 
From: "Dave" 


> On 4/16/2012 5:00 PM, Stephen Dubovsky wrote:
>>> As far as I can tell, ARMs are in a different class. (Price, complexity,
>>> performance, etc.)
>> There are dozens of companies making
>> thousands of ARM processor variations.  One will have the
>> peripherial/memory flavor at the price point you need.  The code is 
>> mostly
>> compatible from the top to bottom of the cortex line (and *WAY* more than
>> porting from TI to AVR to PIC, etc)
>>
>> Stephen
>>
>
>
> OK... I'll bite.   What kind of software tool chain and hardware is good
> to get started on a NXP LPC or similar Arm?
>
>
I am not an expert - in fact only just round the next corner from you.

I followed this path:
(a) Arduino UNO/Mega -> limitations of the 8 bit data.
(b) Netduino (Atmel AT91SAM7X512) C# in Microsoft VisualStudio - hopeless 
speed on interpreted C# and difficulty of adding native code without 
expensive Kiel tools.
(c) Netduino with IAR Embedded workbench - chip programming by USB but no 
debugging
(d) Atmel AT91SAM7x-EK - same processor albeit smaller memory - JTAG 
connector and a minimal debugging serial port. In-circuit programming and 
debugging by SEGGER J-Link (I got the SAM-ICE customised version but that 
might have been limiting for the future) over the JTAG plus printf to the 
serial port.

IAR is free for limited code size and non-commercial use. So far I have 
found experimentation very pleasant.

Be interested to read others comments.

John Prentice 


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Re: [Emc-users] machine shop advice

[John Thornton]

At least I can open up the stl files and view them in 3-D. There are 
several areas that are impossible to machine... they could be injection 
molded but not machined. Sharp inside corners in the Z axis are not 
machinable... if they have a radius they can be machined. The smaller 
the radius the longer it will take to machine as the tool would be 
small. I can only view a stl file and can't make a solid out of it...

Is there some reason you selected PVC as the material?

John

On 4/16/2012 4:26 PM, Erik Friesen wrote:
> Ok, hadn't thought that far.  www.aercon.net/Public/Pumpitems.zip
>
> On Mon, Apr 16, 2012 at 5:13 PM, John Thornton  wrote:
>
>> The dxf and pdf came through this time but too much detail is missing.
>> The alibre web site says the software can export to STL which I can open.
>>
>> John
>>
>> On 4/16/2012 3:36 PM, Erik Friesen wrote:
>>> Try these again.The ad_prt is an alibre file.  I intend to get iges/step
>>> exporting, but currently only have alibre pe.
>>>
>>> For some reason, fireftp isn't doing its job, and was uploading
>> incomplete
>>> files.
>>>
 DXF
 PDF
 Alibre
>>>
>>> On Mon, Apr 16, 2012 at 4:26 PM, Joseph Chiu
>>   wrote:
 I've recently got a bunch of parts from FirstCut (Part of ProtoLabs,
 which started out as ProtoMold) that turned out well.  Years ago, I
 used Rapid Sheet Metal for sheet work, and was very happy.  Their
 affiliate company, Rapid Machining, is working on a piece for me right
 now.  Their prices were better than FirstCut for 5-days turns, while
 FC was better for 1-3 day turns.

 With FC and RM, they used my exported STEP 214 files from Alibre.
 With FC, I use their online system to call out the threads.  With RM,
 I had a separate .pdf calling out my threads.

 Both places have a +/- 0.005" as a standard tolerance; but usually
 achieves much better than that.  FC only supports a limited number of
 threads.  RM appears to be more flexible.

 One thing about FC -- they claim they have a bed size limit of 7" x
 10" -- but it turns out for thinner parts, the supported bed size can
 be much bigger, depending on thickness.

 On Mon, Apr 16, 2012 at 12:46 PM, John Thornton
>>   wrote:
> Erik,
>
> I get invalid or incomplete for the dxf and bad file for the ad_prt
> file. Can you save the file as step or iges?
>
> thanks
> John
>
> On 4/16/2012 2:00 PM, Erik Friesen wrote:
>> The 3d pdf's created by alibre are a little flaky.
>>
>> DXF
>> PDF
>> Alibre
>>
>>
>> On Mon, Apr 16, 2012 at 2:47 PM, John Thornton
wrote:
>>> I can't see much on the pdf, do you have a cad drawing or 3d model of
>>> the part?
>>>
>>> John Thornton
>>>
>>> On 4/16/2012 1:42 PM, Erik Friesen wrote:
 Around 50 pieces each.

 On Mon, Apr 16, 2012 at 2:34 PM, Dave wrote:

> On 4/16/2012 1:35 PM, Erik Friesen wrote:
>> Has anyone here use e-machine shop, or anything like it?  I am
 needing
>>> to
>> outsource some cnc work, but not sure where to go.  One of the
>> guys
 on
> this
>> project had mentioned www.mfg.com, but I am pretty leery of it.
It is
> all
>> plastic machining, pvc sheet.  Here
>> is one of three,
>> dimensions
>> are 4" x 2.35"
>>
>> --
>> For Developers, A Lot Can Happen In A Second.
>> Boundary is the first to Know...and Tell You.
>> Monitor Your Applications in Ultra-Fine Resolution. Try it FREE!
>> http://p.sf.net/sfu/Boundary-d2dvs2
>> ___
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>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>>
> How many do you need?
>
> Dave
>
>
>
>> --
> For Developers, A Lot Can Happen In A Second.
> Boundary is the first to Know...and Tell You.
> Monitor Your Applications in Ultra-Fine Resolution. Try it FREE!
> http://p.sf.net/sfu/Boundary-d2dvs2
> ___
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> https://lists.sourceforge.net/lists/listinfo/emc-users
>
>> --
 For Developers, A Lot Can Hap

Re: [Emc-users] Hardinge HNC

[John Thornton]

I converted my CHNC a while back with a Mesa 5i20 + 7i33TA + 7i37TA 
cards. My CHNC uses encoders so that part was easy... as I understand 
the HNC has resolvers so you need an additional card for that. IIRC ssi 
on the IRC just finished converting a HNC as well as many others. I'm in 
the process of converting my BP Anilam CNC mill with a 5i25 + 7i77 card 
and a D525 motherboard which will eliminate 2 of the 3 giant electrical 
panels hanging off of the BP knee mill...

John

On 4/16/2012 7:17 PM, Terry Christophersen wrote:
> Hi all,
> I have a Hardinge HNC that I am toying with the idea of retrofitting.I know 
> there is
> a few on this list that have done so,I would like to know the amp/motor 
> combos that are
> in use.I have one that I put a Centroid on a few years ago but I dont have 
> the workload
> for another 10K kit for this one.I would just use it for a rush job so I dont 
> have to tear down the
> other HNC.
>   
> I would assume that the origional axis motors would be usable as they were 
> working when I
> shut it off 5yrs ago.Maybe Jon Elsons amps would be a good choice?
>   
> Thanks
>   
> Terry
>
> --
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Re: [Emc-users] Hardinge HNC

[Ian McMahon]

Yes, I'm ssi on IRC, and the conversion was quite straightforward.   I have 
$400 in Mesa gear, under $200 for two vfds, and miscellaneous wiring supplies.  
The stock resolvers work great with mesa's 7i49, there's no problems with the 
Hiak amps.   The only issue I ran into was dirty tachs, and they cleaned up 
easy enough. 

Conversion took about 2 weeks of evenings.

Ian

Sent from my iPhone

On Apr 17, 2012, at 7:57 AM, John Thornton  wrote:

> I converted my CHNC a while back with a Mesa 5i20 + 7i33TA + 7i37TA 
> cards. My CHNC uses encoders so that part was easy... as I understand 
> the HNC has resolvers so you need an additional card for that. IIRC ssi 
> on the IRC just finished converting a HNC as well as many others. I'm in 
> the process of converting my BP Anilam CNC mill with a 5i25 + 7i77 card 
> and a D525 motherboard which will eliminate 2 of the 3 giant electrical 
> panels hanging off of the BP knee mill...
> 
> John
> 
> On 4/16/2012 7:17 PM, Terry Christophersen wrote:
>> Hi all,
>> I have a Hardinge HNC that I am toying with the idea of retrofitting.I know 
>> there is
>> a few on this list that have done so,I would like to know the amp/motor 
>> combos that are
>> in use.I have one that I put a Centroid on a few years ago but I dont have 
>> the workload
>> for another 10K kit for this one.I would just use it for a rush job so I 
>> dont have to tear down the
>> other HNC.
>> 
>> I would assume that the origional axis motors would be usable as they were 
>> working when I
>> shut it off 5yrs ago.Maybe Jon Elsons amps would be a good choice?
>> 
>> Thanks
>> 
>> Terry
>> 
>> --
>> Better than sec? Nothing is better than sec when it comes to
>> monitoring Big Data applications. Try Boundary one-second
>> resolution app monitoring today. Free.
>> http://p.sf.net/sfu/Boundary-dev2dev
>> ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
> 
> --
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> monitoring Big Data applications. Try Boundary one-second 
> resolution app monitoring today. Free.
> http://p.sf.net/sfu/Boundary-dev2dev
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> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users

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Re: [Emc-users] Hardinge HNC

[andy pugh]

On 17 April 2012 12:57, John Thornton  wrote:
> I converted my CHNC a while back with a Mesa 5i20 + 7i33TA + 7i37TA
> cards. My CHNC uses encoders so that part was easy... as I understand
> the HNC has resolvers so you need an additional card for that

There is support for the Mesa 7i49 in the 2.5 release of LinuxCNC (if
I am reading git.linuxcnc.org correctly)
So, 5i23 + 7i49 + 7i37TA ought to work.

-- 
atp
The idea that there is no such thing as objective truth is, quite simply, wrong.

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Re: [Emc-users] machine shop advice

[Erik Friesen]

Which areas?  I have built 10 of these on my 3 axis machine.  I had to hand
drill the hole in the side of the lid.  Everything else was done with 1/4,
1/8, and 1/16 bits.

PVC is the only cost effective material with resistance to bromine.

On Tue, Apr 17, 2012 at 7:43 AM, John Thornton  wrote:

> At least I can open up the stl files and view them in 3-D. There are
> several areas that are impossible to machine... they could be injection
> molded but not machined. Sharp inside corners in the Z axis are not
> machinable... if they have a radius they can be machined. The smaller
> the radius the longer it will take to machine as the tool would be
> small. I can only view a stl file and can't make a solid out of it...
>
> Is there some reason you selected PVC as the material?
>
> John
>
> On 4/16/2012 4:26 PM, Erik Friesen wrote:
> > Ok, hadn't thought that far.  www.aercon.net/Public/Pumpitems.zip
> >
> > On Mon, Apr 16, 2012 at 5:13 PM, John Thornton  wrote:
> >
> >> The dxf and pdf came through this time but too much detail is missing.
> >> The alibre web site says the software can export to STL which I can
> open.
> >>
> >> John
> >>
> >> On 4/16/2012 3:36 PM, Erik Friesen wrote:
> >>> Try these again.The ad_prt is an alibre file.  I intend to get
> iges/step
> >>> exporting, but currently only have alibre pe.
> >>>
> >>> For some reason, fireftp isn't doing its job, and was uploading
> >> incomplete
> >>> files.
> >>>
>  DXF
>  PDF
>  Alibre
> >>>
> >>> On Mon, Apr 16, 2012 at 4:26 PM, Joseph Chiu
> >>   wrote:
>  I've recently got a bunch of parts from FirstCut (Part of ProtoLabs,
>  which started out as ProtoMold) that turned out well.  Years ago, I
>  used Rapid Sheet Metal for sheet work, and was very happy.  Their
>  affiliate company, Rapid Machining, is working on a piece for me right
>  now.  Their prices were better than FirstCut for 5-days turns, while
>  FC was better for 1-3 day turns.
> 
>  With FC and RM, they used my exported STEP 214 files from Alibre.
>  With FC, I use their online system to call out the threads.  With RM,
>  I had a separate .pdf calling out my threads.
> 
>  Both places have a +/- 0.005" as a standard tolerance; but usually
>  achieves much better than that.  FC only supports a limited number of
>  threads.  RM appears to be more flexible.
> 
>  One thing about FC -- they claim they have a bed size limit of 7" x
>  10" -- but it turns out for thinner parts, the supported bed size can
>  be much bigger, depending on thickness.
> 
>  On Mon, Apr 16, 2012 at 12:46 PM, John Thornton
> >>   wrote:
> > Erik,
> >
> > I get invalid or incomplete for the dxf and bad file for the ad_prt
> > file. Can you save the file as step or iges?
> >
> > thanks
> > John
> >
> > On 4/16/2012 2:00 PM, Erik Friesen wrote:
> >> The 3d pdf's created by alibre are a little flaky.
> >>
> >> DXF
> >> PDF
> >> Alibre
> >>
> >>
> >> On Mon, Apr 16, 2012 at 2:47 PM, John Thornton
> wrote:
> >>> I can't see much on the pdf, do you have a cad drawing or 3d model
> of
> >>> the part?
> >>>
> >>> John Thornton
> >>>
> >>> On 4/16/2012 1:42 PM, Erik Friesen wrote:
>  Around 50 pieces each.
> 
>  On Mon, Apr 16, 2012 at 2:34 PM, Dave wrote:
> 
> > On 4/16/2012 1:35 PM, Erik Friesen wrote:
> >> Has anyone here use e-machine shop, or anything like it?  I am
>  needing
> >>> to
> >> outsource some cnc work, but not sure where to go.  One of the
> >> guys
>  on
> > this
> >> project had mentioned www.mfg.com, but I am pretty leery of it.
> It is
> > all
> >> plastic machining, pvc sheet.  Here
> >> is one of three,
> >> dimensions
> >> are 4" x 2.35"
> >>
> >>
> --
> >> For Developers, A Lot Can Happen In A Second.
> >> Boundary is the first to Know...and Tell You.
> >> Monitor Your Applications in Ultra-Fine Resolution. Try it FREE!
> >> http://p.sf.net/sfu/Boundary-d2dvs2
> >> ___
> >> Emc-users mailing list
> >> Emc-users@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/emc-users
> >>
> >>
> > How many do you need?
> >
> > Dave
> >
> >
> >
> >>
> --
> > For Developers

Re: [Emc-users] C Compiler - MPLAB

[Erik Friesen]

I know this is somewhat up to debate, but having everything under one roof
is worth something.  To the inexperienced person, everything in the last 5+
posts is complete greek.

On Tue, Apr 17, 2012 at 5:33 AM, John Prentice <
j...@castlewd.freeserve.co.uk> wrote:

> Greetings
>
> - Original Message -
> From: "Dave" 
>
>
> > On 4/16/2012 5:00 PM, Stephen Dubovsky wrote:
> >>> As far as I can tell, ARMs are in a different class. (Price,
> complexity,
> >>> performance, etc.)
> >> There are dozens of companies making
> >> thousands of ARM processor variations.  One will have the
> >> peripherial/memory flavor at the price point you need.  The code is
> >> mostly
> >> compatible from the top to bottom of the cortex line (and *WAY* more
> than
> >> porting from TI to AVR to PIC, etc)
> >>
> >> Stephen
> >>
> >
> >
> > OK... I'll bite.   What kind of software tool chain and hardware is good
> > to get started on a NXP LPC or similar Arm?
> >
> >
> I am not an expert - in fact only just round the next corner from you.
>
> I followed this path:
> (a) Arduino UNO/Mega -> limitations of the 8 bit data.
> (b) Netduino (Atmel AT91SAM7X512) C# in Microsoft VisualStudio - hopeless
> speed on interpreted C# and difficulty of adding native code without
> expensive Kiel tools.
> (c) Netduino with IAR Embedded workbench - chip programming by USB but no
> debugging
> (d) Atmel AT91SAM7x-EK - same processor albeit smaller memory - JTAG
> connector and a minimal debugging serial port. In-circuit programming and
> debugging by SEGGER J-Link (I got the SAM-ICE customised version but that
> might have been limiting for the future) over the JTAG plus printf to the
> serial port.
>
> IAR is free for limited code size and non-commercial use. So far I have
> found experimentation very pleasant.
>
> Be interested to read others comments.
>
> John Prentice
>
>
>
> --
> Better than sec? Nothing is better than sec when it comes to
> monitoring Big Data applications. Try Boundary one-second
> resolution app monitoring today. Free.
> http://p.sf.net/sfu/Boundary-dev2dev
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>
--
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Re: [Emc-users] machine shop advice

[John Thornton]

It appears that all the hexes have sharp inside corners as well as a 
couple of places on the inside of the base. The bosses around the screw 
holes on the top inside corners are drawn sharp inside corners. The 
middle section bosses for the screw holes also have sharp inside 
corners. I wish SolidWorks would do more with the stl file than just 
create an image of it in one color with no edges...

I had to google bromine to see what that is...

When you machined them did you machine the radius on all the outside 
corners with a radius bit?

John

On 4/17/2012 7:17 AM, Erik Friesen wrote:
> Which areas?  I have built 10 of these on my 3 axis machine.  I had to hand
> drill the hole in the side of the lid.  Everything else was done with 1/4,
> 1/8, and 1/16 bits.
>
> PVC is the only cost effective material with resistance to bromine.
>
> On Tue, Apr 17, 2012 at 7:43 AM, John Thornton  wrote:
>
>> At least I can open up the stl files and view them in 3-D. There are
>> several areas that are impossible to machine... they could be injection
>> molded but not machined. Sharp inside corners in the Z axis are not
>> machinable... if they have a radius they can be machined. The smaller
>> the radius the longer it will take to machine as the tool would be
>> small. I can only view a stl file and can't make a solid out of it...
>>
>> Is there some reason you selected PVC as the material?
>>
>> John
>>
>> On 4/16/2012 4:26 PM, Erik Friesen wrote:
>>> Ok, hadn't thought that far.  www.aercon.net/Public/Pumpitems.zip
>>>
>>> On Mon, Apr 16, 2012 at 5:13 PM, John Thornton   wrote:
>>>
 The dxf and pdf came through this time but too much detail is missing.
 The alibre web site says the software can export to STL which I can
>> open.
 John

 On 4/16/2012 3:36 PM, Erik Friesen wrote:
> Try these again.The ad_prt is an alibre file.  I intend to get
>> iges/step
> exporting, but currently only have alibre pe.
>
> For some reason, fireftp isn't doing its job, and was uploading
 incomplete
> files.
>
>> DXF
>> PDF
>> Alibre
> On Mon, Apr 16, 2012 at 4:26 PM, Joseph Chiu
wrote:
>> I've recently got a bunch of parts from FirstCut (Part of ProtoLabs,
>> which started out as ProtoMold) that turned out well.  Years ago, I
>> used Rapid Sheet Metal for sheet work, and was very happy.  Their
>> affiliate company, Rapid Machining, is working on a piece for me right
>> now.  Their prices were better than FirstCut for 5-days turns, while
>> FC was better for 1-3 day turns.
>>
>> With FC and RM, they used my exported STEP 214 files from Alibre.
>> With FC, I use their online system to call out the threads.  With RM,
>> I had a separate .pdf calling out my threads.
>>
>> Both places have a +/- 0.005" as a standard tolerance; but usually
>> achieves much better than that.  FC only supports a limited number of
>> threads.  RM appears to be more flexible.
>>
>> One thing about FC -- they claim they have a bed size limit of 7" x
>> 10" -- but it turns out for thinner parts, the supported bed size can
>> be much bigger, depending on thickness.
>>
>> On Mon, Apr 16, 2012 at 12:46 PM, John Thornton
wrote:
>>> Erik,
>>>
>>> I get invalid or incomplete for the dxf and bad file for the ad_prt
>>> file. Can you save the file as step or iges?
>>>
>>> thanks
>>> John
>>>
>>> On 4/16/2012 2:00 PM, Erik Friesen wrote:
 The 3d pdf's created by alibre are a little flaky.

 DXF
 PDF
 Alibre


 On Mon, Apr 16, 2012 at 2:47 PM, John Thornton
>> wrote:
> I can't see much on the pdf, do you have a cad drawing or 3d model
>> of
> the part?
>
> John Thornton
>
> On 4/16/2012 1:42 PM, Erik Friesen wrote:
>> Around 50 pieces each.
>>
>> On Mon, Apr 16, 2012 at 2:34 PM, Dave  wrote:
>>
>>> On 4/16/2012 1:35 PM, Erik Friesen wrote:
 Has anyone here use e-machine shop, or anything like it?  I am
>> needing
> to
 outsource some cnc work, but not sure where to go.  One of the
 guys
>> on
>>> this
 project had mentioned www.mfg.com, but I am pretty leery of it.
>> It is
>>> all
 plastic machining, pvc sheet.  Here
 is one of three,
 dimensions
 are 4" x 2.35"

>> --
 For Developers, A Lot Can Happen In A Second.
 Bounda

Re: [Emc-users] machine shop advice

[John Thornton]

Someone on the SolidWorks forum said there is a free 30 day trial of 
alibre that is full featured and the files can be exported as a step or 
parasolid file which is a native file for SW. I'm downloading the trial 
now to see so if you want to link to the three parts in alibre I'll try 
and convert them.

John

On 4/17/2012 7:17 AM, Erik Friesen wrote:
> Which areas?  I have built 10 of these on my 3 axis machine.  I had to hand
> drill the hole in the side of the lid.  Everything else was done with 1/4,
> 1/8, and 1/16 bits.
>
> PVC is the only cost effective material with resistance to bromine.
>
> On Tue, Apr 17, 2012 at 7:43 AM, John Thornton  wrote:
>
>> At least I can open up the stl files and view them in 3-D. There are
>> several areas that are impossible to machine... they could be injection
>> molded but not machined. Sharp inside corners in the Z axis are not
>> machinable... if they have a radius they can be machined. The smaller
>> the radius the longer it will take to machine as the tool would be
>> small. I can only view a stl file and can't make a solid out of it...
>>
>> Is there some reason you selected PVC as the material?
>>
>> John
>>
>> On 4/16/2012 4:26 PM, Erik Friesen wrote:
>>> Ok, hadn't thought that far.  www.aercon.net/Public/Pumpitems.zip
>>>
>>> On Mon, Apr 16, 2012 at 5:13 PM, John Thornton   wrote:
>>>
 The dxf and pdf came through this time but too much detail is missing.
 The alibre web site says the software can export to STL which I can
>> open.
 John

 On 4/16/2012 3:36 PM, Erik Friesen wrote:
> Try these again.The ad_prt is an alibre file.  I intend to get
>> iges/step
> exporting, but currently only have alibre pe.
>
> For some reason, fireftp isn't doing its job, and was uploading
 incomplete
> files.
>
>> DXF
>> PDF
>> Alibre
> On Mon, Apr 16, 2012 at 4:26 PM, Joseph Chiu
wrote:
>> I've recently got a bunch of parts from FirstCut (Part of ProtoLabs,
>> which started out as ProtoMold) that turned out well.  Years ago, I
>> used Rapid Sheet Metal for sheet work, and was very happy.  Their
>> affiliate company, Rapid Machining, is working on a piece for me right
>> now.  Their prices were better than FirstCut for 5-days turns, while
>> FC was better for 1-3 day turns.
>>
>> With FC and RM, they used my exported STEP 214 files from Alibre.
>> With FC, I use their online system to call out the threads.  With RM,
>> I had a separate .pdf calling out my threads.
>>
>> Both places have a +/- 0.005" as a standard tolerance; but usually
>> achieves much better than that.  FC only supports a limited number of
>> threads.  RM appears to be more flexible.
>>
>> One thing about FC -- they claim they have a bed size limit of 7" x
>> 10" -- but it turns out for thinner parts, the supported bed size can
>> be much bigger, depending on thickness.
>>
>> On Mon, Apr 16, 2012 at 12:46 PM, John Thornton
wrote:
>>> Erik,
>>>
>>> I get invalid or incomplete for the dxf and bad file for the ad_prt
>>> file. Can you save the file as step or iges?
>>>
>>> thanks
>>> John
>>>
>>> On 4/16/2012 2:00 PM, Erik Friesen wrote:
 The 3d pdf's created by alibre are a little flaky.

 DXF
 PDF
 Alibre


 On Mon, Apr 16, 2012 at 2:47 PM, John Thornton
>> wrote:
> I can't see much on the pdf, do you have a cad drawing or 3d model
>> of
> the part?
>
> John Thornton
>
> On 4/16/2012 1:42 PM, Erik Friesen wrote:
>> Around 50 pieces each.
>>
>> On Mon, Apr 16, 2012 at 2:34 PM, Dave  wrote:
>>
>>> On 4/16/2012 1:35 PM, Erik Friesen wrote:
 Has anyone here use e-machine shop, or anything like it?  I am
>> needing
> to
 outsource some cnc work, but not sure where to go.  One of the
 guys
>> on
>>> this
 project had mentioned www.mfg.com, but I am pretty leery of it.
>> It is
>>> all
 plastic machining, pvc sheet.  Here
 is one of three,
 dimensions
 are 4" x 2.35"

>> --
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>>>

Re: [Emc-users] machine shop advice

[Erik Friesen]

The only places that require a 1/16 bit are the o ring grooves on the base
and middle pieces.  Everything else ended up with 1/8 radius.

I machined the radius with a ball end mill, which is time consuming, but
less than doing it by hand.  The base this fits in was machined using a
ball end, so to fit I have to radius the bottom.

Here is what mine  looks like.

On Tue, Apr 17, 2012 at 8:58 AM, John Thornton  wrote:

> Someone on the SolidWorks forum said there is a free 30 day trial of
> alibre that is full featured and the files can be exported as a step or
> parasolid file which is a native file for SW. I'm downloading the trial
> now to see so if you want to link to the three parts in alibre I'll try
> and convert them.
>
> John
>
> On 4/17/2012 7:17 AM, Erik Friesen wrote:
> > Which areas?  I have built 10 of these on my 3 axis machine.  I had to
> hand
> > drill the hole in the side of the lid.  Everything else was done with
> 1/4,
> > 1/8, and 1/16 bits.
> >
> > PVC is the only cost effective material with resistance to bromine.
> >
> > On Tue, Apr 17, 2012 at 7:43 AM, John Thornton  wrote:
> >
> >> At least I can open up the stl files and view them in 3-D. There are
> >> several areas that are impossible to machine... they could be injection
> >> molded but not machined. Sharp inside corners in the Z axis are not
> >> machinable... if they have a radius they can be machined. The smaller
> >> the radius the longer it will take to machine as the tool would be
> >> small. I can only view a stl file and can't make a solid out of it...
> >>
> >> Is there some reason you selected PVC as the material?
> >>
> >> John
> >>
> >> On 4/16/2012 4:26 PM, Erik Friesen wrote:
> >>> Ok, hadn't thought that far.  www.aercon.net/Public/Pumpitems.zip
> >>>
> >>> On Mon, Apr 16, 2012 at 5:13 PM, John Thornton
> wrote:
> >>>
>  The dxf and pdf came through this time but too much detail is missing.
>  The alibre web site says the software can export to STL which I can
> >> open.
>  John
> 
>  On 4/16/2012 3:36 PM, Erik Friesen wrote:
> > Try these again.The ad_prt is an alibre file.  I intend to get
> >> iges/step
> > exporting, but currently only have alibre pe.
> >
> > For some reason, fireftp isn't doing its job, and was uploading
>  incomplete
> > files.
> >
> >> DXF
> >> PDF
> >> Alibre
> > On Mon, Apr 16, 2012 at 4:26 PM, Joseph Chiu
> wrote:
> >> I've recently got a bunch of parts from FirstCut (Part of ProtoLabs,
> >> which started out as ProtoMold) that turned out well.  Years ago, I
> >> used Rapid Sheet Metal for sheet work, and was very happy.  Their
> >> affiliate company, Rapid Machining, is working on a piece for me
> right
> >> now.  Their prices were better than FirstCut for 5-days turns, while
> >> FC was better for 1-3 day turns.
> >>
> >> With FC and RM, they used my exported STEP 214 files from Alibre.
> >> With FC, I use their online system to call out the threads.  With
> RM,
> >> I had a separate .pdf calling out my threads.
> >>
> >> Both places have a +/- 0.005" as a standard tolerance; but usually
> >> achieves much better than that.  FC only supports a limited number
> of
> >> threads.  RM appears to be more flexible.
> >>
> >> One thing about FC -- they claim they have a bed size limit of 7" x
> >> 10" -- but it turns out for thinner parts, the supported bed size
> can
> >> be much bigger, depending on thickness.
> >>
> >> On Mon, Apr 16, 2012 at 12:46 PM, John Thornton
> wrote:
> >>> Erik,
> >>>
> >>> I get invalid or incomplete for the dxf and bad file for the ad_prt
> >>> file. Can you save the file as step or iges?
> >>>
> >>> thanks
> >>> John
> >>>
> >>> On 4/16/2012 2:00 PM, Erik Friesen wrote:
>  The 3d pdf's created by alibre are a little flaky.
> 
>  DXF
>  PDF
>  Alibre
> 
> 
>  On Mon, Apr 16, 2012 at 2:47 PM, John Thornton
> >> wrote:
> > I can't see much on the pdf, do you have a cad drawing or 3d
> model
> >> of
> > the part?
> >
> > John Thornton
> >
> > On 4/16/2012 1:42 PM, Erik Friesen wrote:
> >> Around 50 pieces each.
> >>
> >> On Mon, Apr 16, 2012 at 2:34 PM, Dave
>  wrote:
> >>
> >>> On 4/16/2012 1:35 PM, Erik Friesen wrote:
>  Has anyone here use e-machine shop, or anything like it?  I am
> >> needing
> > to
>  outsource some cnc work, but not sure where to go.  One of the
>  guys
> >> on
> >>> this

Re: [Emc-users] machine shop advice

[andy pugh]

On 17 April 2012 14:02, Erik Friesen  wrote:
> Everything else ended up with 1/8 radius.

In that case you need to draw it with a 1/8" radius, or the machine
shops will quote for the part as-drawn, and you will be paying a lot
more for difficult machining that you don't need.

I see, for example, that you don't have hexagonal recesses in your
part, but they exist in the model.

If you want to keep nuts captive then a rounded triangle will work
nearly as well, but can be much more easily machined.

-- 
atp
The idea that there is no such thing as objective truth is, quite simply, wrong.

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Re: [Emc-users] BLDC on 7i43 + 7i39 + linear motors

[rob c]

So the 7i39 is a brush less DC motor, if your trying to see if the motor it 
self is functional just hook it up to a DC power supply, 12V would do just 
fine, if it rotates regardless of polarity the motor is good and you need to 
move onto the electronics.
What are you hooking the encoder to? What kind of encoder is it?

> From: parallel.kinemat...@gmail.com
> Date: Tue, 17 Apr 2012 09:21:20 +0300
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] BLDC on 7i43 + 7i39 + linear motors
> 
> 17 квітня 2012 р. 03:24 Peter C. Wallace  написав:
> 
> > What I am asking is if the 7I39 encoder inputs work normally now
> > If not, this still suggests a wiring error of some kind
> >
> 
> I test only X axis now. The encoder is connected to 1 (A) and 3 (B) wires
> of ribbon cable, and it works on X axis. The cable connects 7i43 (P4) to
> 7i39.
> The motor is connected to bottom right connector on 7i39, from bottom to
> top: Ground, U, V, W.
> Top left corner orange LED on 7i39 lights, as well as bottom green LED
> among 5. When I start the machine, the middle orange LED of 5 lights too. I
> guess 7i39 receives power well. Absolutely no idea what can be wrong.
> BTW manual shows 1+5 leds but only 5 described.
> 
> Andrew
> --
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> monitoring Big Data applications. Try Boundary one-second 
> resolution app monitoring today. Free.
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Re: [Emc-users] machine shop advice

[John Thornton]

The top part just has some counterbores for SHCS's.  And yes I agree the 
part should be modeled with a radius on inside corners as allowed.

John

On 4/17/2012 8:13 AM, andy pugh wrote:
> On 17 April 2012 14:02, Erik Friesen  wrote:
>> Everything else ended up with 1/8 radius.
> In that case you need to draw it with a 1/8" radius, or the machine
> shops will quote for the part as-drawn, and you will be paying a lot
> more for difficult machining that you don't need.
>
> I see, for example, that you don't have hexagonal recesses in your
> part, but they exist in the model.
>
> If you want to keep nuts captive then a rounded triangle will work
> nearly as well, but can be much more easily machined.
>

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Re: [Emc-users] machine shop advice

[Erik Friesen]

I get some new corrected ones on here after a bit.

On Tue, Apr 17, 2012 at 9:28 AM, John Thornton  wrote:

> The top part just has some counterbores for SHCS's.  And yes I agree the
> part should be modeled with a radius on inside corners as allowed.
>
> John
>
> On 4/17/2012 8:13 AM, andy pugh wrote:
> > On 17 April 2012 14:02, Erik Friesen  wrote:
> >> Everything else ended up with 1/8 radius.
> > In that case you need to draw it with a 1/8" radius, or the machine
> > shops will quote for the part as-drawn, and you will be paying a lot
> > more for difficult machining that you don't need.
> >
> > I see, for example, that you don't have hexagonal recesses in your
> > part, but they exist in the model.
> >
> > If you want to keep nuts captive then a rounded triangle will work
> > nearly as well, but can be much more easily machined.
> >
>
>
> --
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Re: [Emc-users] BLDC on 7i43 + 7i39 + linear motors

[Greg Bernard]

How is a brushless motor going to rotate with just a DC power supply?

 
+++
We are like tenant farmers chopping down the fence around our house for 
fuel when we should be using Nature's inexhaustible sources of energy -- sun, 
wind and tide. ... I'd put my money on the sun and solar energy. 
What a source of power! I hope we don't have to wait until oil and coal 
run out before we tackle that. -Thomas Edison, inventor (1847-1931) 



>
> From: rob c 
>To: emc-users@lists.sourceforge.net 
>Sent: Tuesday, April 17, 2012 8:28 AM
>Subject: Re: [Emc-users] BLDC on 7i43 + 7i39 + linear motors
> 
>
>So the 7i39 is a brush less DC motor, if your trying to see if the motor it 
>self is functional just hook it up to a DC power supply, 12V would do just 
>fine, if it rotates regardless of polarity the motor is good and you need to 
>move onto the electronics.
>What are you hooking the encoder to? What kind of encoder is it?
>
>> From: parallel.kinemat...@gmail.com
>> Date: Tue, 17 Apr 2012 09:21:20 +0300
>> To: emc-users@lists.sourceforge.net
>> Subject: Re: [Emc-users] BLDC on 7i43 + 7i39 + linear motors
>> 
>> 17 квітня 2012 р. 03:24 Peter C. Wallace  написав:
>> 
>> > What I am asking is if the 7I39 encoder inputs work normally now
>> > If not, this still suggests a wiring error of some kind
>> >
>> 
>> I test only X axis now. The encoder is connected to 1 (A) and 3 (B) wires
>> of ribbon cable, and it works on X axis. The cable connects 7i43 (P4) to
>> 7i39.
>> The motor is connected to bottom right connector on 7i39, from bottom to
>> top: Ground, U, V, W.
>> Top left corner orange LED on 7i39 lights, as well as bottom green LED
>> among 5. When I start the machine, the middle orange LED of 5 lights too. I
>> guess 7i39 receives power well. Absolutely no idea what can be wrong.
>> BTW manual shows 1+5 leds but only 5 described.
>> 
>> Andrew
>> --
>> Better than sec? Nothing is better than sec when it comes to
>> monitoring Big Data applications. Try Boundary one-second 
>> resolution app monitoring today. Free.
>> http://p.sf.net/sfu/Boundary-dev2dev
>> ___
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>> https://lists.sourceforge.net/lists/listinfo/emc-users
>                          
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>
>
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Re: [Emc-users] BLDC on 7i43 + 7i39 + linear motors

[Peter C. Wallace]

On Tue, 17 Apr 2012, Andrew wrote:


Date: Tue, 17 Apr 2012 09:21:20 +0300
From: Andrew 
Reply-To: "Enhanced Machine Controller (EMC)"

To: "Enhanced Machine Controller (EMC)" 
Subject: Re: [Emc-users] BLDC on 7i43 + 7i39 + linear motors

17  2012 ??. 03:24 Peter C. Wallace  
??:



What I am asking is if the 7I39 encoder inputs work normally now
If not, this still suggests a wiring error of some kind




I test only X axis now. The encoder is connected to 1 (A) and 3 (B) wires
of ribbon cable, and it works on X axis. The cable connects 7i43 (P4) to
7i39.
The motor is connected to bottom right connector on 7i39, from bottom to
top: Ground, U, V, W.
Top left corner orange LED on 7i39 lights, as well as bottom green LED
among 5. When I start the machine, the middle orange LED of 5 lights too. I
guess 7i39 receives power well. Absolutely no idea what can be wrong.
BTW manual shows 1+5 leds but only 5 described.



Andrew


Flat cable problems? The fact that the encoder inputs on the 7I39 do not work 
for you means something is wrong either on the 7I39s or the interconnections 
to the 7I43



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Peter Wallace
Mesa Electronics

(\__/)
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(")_(") signature to help him gain world domination.
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Re: [Emc-users] machine shop advice

[John Thornton]

Strangely enough my CAM software (OneCNC) will open a stl file but I 
can't extract any edges or surfaces for machining.

I registered twice to get the trial download but have not received the 
email yet with the information... the next page gave me another register 
page and wouldn't you know I got an email from a salesperson asap...

http://mkt.alibre.com/testdrive

John


On 4/17/2012 8:32 AM, Erik Friesen wrote:
> I get some new corrected ones on here after a bit.
>
> On Tue, Apr 17, 2012 at 9:28 AM, John Thornton  wrote:
>
>> The top part just has some counterbores for SHCS's.  And yes I agree the
>> part should be modeled with a radius on inside corners as allowed.
>>
>> John
>>
>> On 4/17/2012 8:13 AM, andy pugh wrote:
>>> On 17 April 2012 14:02, Erik Friesen   wrote:
 Everything else ended up with 1/8 radius.
>>> In that case you need to draw it with a 1/8" radius, or the machine
>>> shops will quote for the part as-drawn, and you will be paying a lot
>>> more for difficult machining that you don't need.
>>>
>>> I see, for example, that you don't have hexagonal recesses in your
>>> part, but they exist in the model.
>>>
>>> If you want to keep nuts captive then a rounded triangle will work
>>> nearly as well, but can be much more easily machined.
>>>
>>
>> --
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>> monitoring Big Data applications. Try Boundary one-second
>> resolution app monitoring today. Free.
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Re: [Emc-users] machine shop advice

[Erik Friesen]

Whats is the cost for OneCNC?

On Tue, Apr 17, 2012 at 10:06 AM, John Thornton  wrote:

> Strangely enough my CAM software (OneCNC) will open a stl file but I
> can't extract any edges or surfaces for machining.
>
> I registered twice to get the trial download but have not received the
> email yet with the information... the next page gave me another register
> page and wouldn't you know I got an email from a salesperson asap...
>
> http://mkt.alibre.com/testdrive
>
> John
>
>
> On 4/17/2012 8:32 AM, Erik Friesen wrote:
> > I get some new corrected ones on here after a bit.
> >
> > On Tue, Apr 17, 2012 at 9:28 AM, John Thornton  wrote:
> >
> >> The top part just has some counterbores for SHCS's.  And yes I agree the
> >> part should be modeled with a radius on inside corners as allowed.
> >>
> >> John
> >>
> >> On 4/17/2012 8:13 AM, andy pugh wrote:
> >>> On 17 April 2012 14:02, Erik Friesen   wrote:
>  Everything else ended up with 1/8 radius.
> >>> In that case you need to draw it with a 1/8" radius, or the machine
> >>> shops will quote for the part as-drawn, and you will be paying a lot
> >>> more for difficult machining that you don't need.
> >>>
> >>> I see, for example, that you don't have hexagonal recesses in your
> >>> part, but they exist in the model.
> >>>
> >>> If you want to keep nuts captive then a rounded triangle will work
> >>> nearly as well, but can be much more easily machined.
> >>>
> >>
> >>
> --
> >> Better than sec? Nothing is better than sec when it comes to
> >> monitoring Big Data applications. Try Boundary one-second
> >> resolution app monitoring today. Free.
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> >> https://lists.sourceforge.net/lists/listinfo/emc-users
> >>
> >
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[Emc-users] the state of the Wiki

[Kent A. Reed]

Gentle persons:

When the dust settles over some of the recent, long threads on subjects 
like "G540 Test Update" and "BLDC" I hope the essences of the 
subjects get distilled into useful pages on our Wiki.

Speaking of the Wiki , it could use a lot more 
editorial work. Looking at the Recent Changes listing, I see the usual 
few suspects making progress but there is a lot of work left.

Back in January, after the decision was announced to rebrand our work 
LinuxCNC, I spent time under my SourceForge pseudonym CNCDreamer trying 
to fix up the most egregious instances of "EMC2" but had to leave a 
number of pages marked as "in progress" because they required technical 
changes I felt unprepared or even unqualified to make. Looking now, I 
see many of the same pages haven't been touched since. There are a 
number of pages that are terribly stale and the organization of the home 
page is trending toward chaos. Try to read it like you were new to 
LinuxCNC and see what you make of it.

I wish I were in a position to do more of what needs to be done, but 
recent challenges at home make a concerted effort impossible. I'm lucky 
to have time to skim the mail-list traffic and I have a bunch of 
projects that haven't progressed beyond acquisition of parts.

Come on, jump in, the water's fine.

Regards,
Kent


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[Emc-users] Fw: machine shop advice

[dave]

Begin forwarded message:

Date: Tue, 17 Apr 2012 06:43:13 -0500
From: John Thornton 
To: "Enhanced Machine Controller (EMC)"
 Subject: Re: [Emc-users] machine shop
advice


At least I can open up the stl files and view them in 3-D. There are 
several areas that are impossible to machine... they could be injection 
molded but not machined. Sharp inside corners in the Z axis are not 
machinable... if they have a radius they can be machined. The smaller 
the radius the longer it will take to machine as the tool would be 
small. I can only view a stl file and can't make a solid out of it...

Is there some reason you selected PVC as the material?

>From a plastics manufacturer:
. Materials that are resistant to bromine are few: titanium, fiberglass
reinforced plastic (FRP) and PVDF. PVDF was considered the best choice
because vessels made of FRP have been known to blister and fail
prematurely, whereas titanium is very expensive.

>From Cole-Parmer database:
Listed as very good; viton, pvdf, teflon, noryl, kel-f, hastelloy-c.
Ti was listed as poor. 

Another source listed stainless steel but did not recommend Ti

No one listed glass which is absolutely resistant to bromine but not
much of an engineering material. 

Clearly YMMV.  Good luck. 

Dave

John

On 4/16/2012 4:26 PM, Erik Friesen wrote:
> Ok, hadn't thought that far.  www.aercon.net/Public/Pumpitems.zip
>
> On Mon, Apr 16, 2012 at 5:13 PM, John Thornton
> wrote:
>
>> The dxf and pdf came through this time but too much detail is
>> missing. The alibre web site says the software can export to STL
>> which I can open.
>>
>> John
>>
>> On 4/16/2012 3:36 PM, Erik Friesen wrote:
>>> Try these again.The ad_prt is an alibre file.  I intend to get
>>> iges/step exporting, but currently only have alibre pe.
>>>
>>> For some reason, fireftp isn't doing its job, and was uploading
>> incomplete
>>> files.
>>>
 DXF
 PDF
 Alibre
>>>
>>> On Mon, Apr 16, 2012 at 4:26 PM, Joseph Chiu
>>   wrote:
 I've recently got a bunch of parts from FirstCut (Part of
 ProtoLabs, which started out as ProtoMold) that turned out well.
 Years ago, I used Rapid Sheet Metal for sheet work, and was very
 happy.  Their affiliate company, Rapid Machining, is working on a
 piece for me right now.  Their prices were better than FirstCut
 for 5-days turns, while FC was better for 1-3 day turns.

 With FC and RM, they used my exported STEP 214 files from Alibre.
 With FC, I use their online system to call out the threads.  With
 RM, I had a separate .pdf calling out my threads.

 Both places have a +/- 0.005" as a standard tolerance; but usually
 achieves much better than that.  FC only supports a limited number
 of threads.  RM appears to be more flexible.

 One thing about FC -- they claim they have a bed size limit of 7" x
 10" -- but it turns out for thinner parts, the supported bed size
 can be much bigger, depending on thickness.

 On Mon, Apr 16, 2012 at 12:46 PM, John Thornton
>>   wrote:
> Erik,
>
> I get invalid or incomplete for the dxf and bad file for the
> ad_prt file. Can you save the file as step or iges?
>
> thanks
> John
>
> On 4/16/2012 2:00 PM, Erik Friesen wrote:
>> The 3d pdf's created by alibre are a little flaky.
>>
>> DXF
>> PDF
>> Alibre
>>
>>
>> On Mon, Apr 16, 2012 at 2:47 PM, John Thornton
wrote:
>>> I can't see much on the pdf, do you have a cad drawing or 3d
>>> model of the part?
>>>
>>> John Thornton
>>>
>>> On 4/16/2012 1:42 PM, Erik Friesen wrote:
 Around 50 pieces each.

 On Mon, Apr 16, 2012 at 2:34 PM, Dave
 wrote:

> On 4/16/2012 1:35 PM, Erik Friesen wrote:
>> Has anyone here use e-machine shop, or anything like it?  I
>> am
 needing
>>> to
>> outsource some cnc work, but not sure where to go.  One of
>> the
>> guys
 on
> this
>> project had mentioned www.mfg.com, but I am pretty leery of
>> it.
It is
> all
>> plastic machining, pvc sheet.  Here
>> is one of three,
>> dimensions
>> are 4" x 2.35"
>>
>> --
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>> Boundary is the first to Know...and Tell You.
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>> FREE! http://p.sf.net/sfu/Boundary-d2dvs2
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[Emc-users] Kirks Hardinge project...

[Roger Holmquist]

I just looked at your Hardinge lathe Kirk and found a HAL-file who by my Newbie 
eyes found unfinished!
Ayway, just in case here it is: 
http://www.wallacecompany.com/cnc_lathe/HNC/emc2/nc_files/M111
and I guess you simply haven't finished it yet, it's a copy if M110...

Nice to have a bolts&nut view as our Storebro260 might follow part of your path!

/ Roger



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Re: [Emc-users] Fw: machine shop advice

[Erik Friesen]

Its not pure bromine.  Its just enough to make some plastics brittle.  Its
in tablet form, so it is probably an occasional 10% ?? liquid?

Why the fuss over pvc?  It machines ok for me.  Its much better than uhmw.

On Tue, Apr 17, 2012 at 11:21 AM, dave  wrote:

>
>
> Begin forwarded message:
>
> Date: Tue, 17 Apr 2012 06:43:13 -0500
> From: John Thornton 
> To: "Enhanced Machine Controller (EMC)"
>  Subject: Re: [Emc-users] machine shop
> advice
>
>
> At least I can open up the stl files and view them in 3-D. There are
> several areas that are impossible to machine... they could be injection
> molded but not machined. Sharp inside corners in the Z axis are not
> machinable... if they have a radius they can be machined. The smaller
> the radius the longer it will take to machine as the tool would be
> small. I can only view a stl file and can't make a solid out of it...
>
> Is there some reason you selected PVC as the material?
>
> >From a plastics manufacturer:
> . Materials that are resistant to bromine are few: titanium, fiberglass
> reinforced plastic (FRP) and PVDF. PVDF was considered the best choice
> because vessels made of FRP have been known to blister and fail
> prematurely, whereas titanium is very expensive.
>
> >From Cole-Parmer database:
> Listed as very good; viton, pvdf, teflon, noryl, kel-f, hastelloy-c.
> Ti was listed as poor.
>
> Another source listed stainless steel but did not recommend Ti
>
> No one listed glass which is absolutely resistant to bromine but not
> much of an engineering material.
>
> Clearly YMMV.  Good luck.
>
> Dave
>
> John
>
> On 4/16/2012 4:26 PM, Erik Friesen wrote:
> > Ok, hadn't thought that far.  www.aercon.net/Public/Pumpitems.zip
> >
> > On Mon, Apr 16, 2012 at 5:13 PM, John Thornton
> > wrote:
> >
> >> The dxf and pdf came through this time but too much detail is
> >> missing. The alibre web site says the software can export to STL
> >> which I can open.
> >>
> >> John
> >>
> >> On 4/16/2012 3:36 PM, Erik Friesen wrote:
> >>> Try these again.The ad_prt is an alibre file.  I intend to get
> >>> iges/step exporting, but currently only have alibre pe.
> >>>
> >>> For some reason, fireftp isn't doing its job, and was uploading
> >> incomplete
> >>> files.
> >>>
>  DXF
>  PDF
>  Alibre
> >>>
> >>> On Mon, Apr 16, 2012 at 4:26 PM, Joseph Chiu
> >>   wrote:
>  I've recently got a bunch of parts from FirstCut (Part of
>  ProtoLabs, which started out as ProtoMold) that turned out well.
>  Years ago, I used Rapid Sheet Metal for sheet work, and was very
>  happy.  Their affiliate company, Rapid Machining, is working on a
>  piece for me right now.  Their prices were better than FirstCut
>  for 5-days turns, while FC was better for 1-3 day turns.
> 
>  With FC and RM, they used my exported STEP 214 files from Alibre.
>  With FC, I use their online system to call out the threads.  With
>  RM, I had a separate .pdf calling out my threads.
> 
>  Both places have a +/- 0.005" as a standard tolerance; but usually
>  achieves much better than that.  FC only supports a limited number
>  of threads.  RM appears to be more flexible.
> 
>  One thing about FC -- they claim they have a bed size limit of 7" x
>  10" -- but it turns out for thinner parts, the supported bed size
>  can be much bigger, depending on thickness.
> 
>  On Mon, Apr 16, 2012 at 12:46 PM, John Thornton
> >>   wrote:
> > Erik,
> >
> > I get invalid or incomplete for the dxf and bad file for the
> > ad_prt file. Can you save the file as step or iges?
> >
> > thanks
> > John
> >
> > On 4/16/2012 2:00 PM, Erik Friesen wrote:
> >> The 3d pdf's created by alibre are a little flaky.
> >>
> >> DXF
> >> PDF
> >> Alibre
> >>
> >>
> >> On Mon, Apr 16, 2012 at 2:47 PM, John Thornton
> wrote:
> >>> I can't see much on the pdf, do you have a cad drawing or 3d
> >>> model of the part?
> >>>
> >>> John Thornton
> >>>
> >>> On 4/16/2012 1:42 PM, Erik Friesen wrote:
>  Around 50 pieces each.
> 
>  On Mon, Apr 16, 2012 at 2:34 PM, Dave
>  wrote:
> 
> > On 4/16/2012 1:35 PM, Erik Friesen wrote:
> >> Has anyone here use e-machine shop, or anything like it?  I
> >> am
>  needing
> >>> to
> >> outsource some cnc work, but not sure where to go.  One of
> >> the
> >> guys
>  on
> > this
> >> project had mentioned www.mfg.com, but I am pretty leery of
> >> it.
> It is
> > all
> >> plastic machining, pvc sheet.  Here
> >> is one

Re: [Emc-users] BLDC on 7i43 + 7i39 + linear motors

[Andrew]

17 квітня 2012 р. 16:50 Peter C. Wallace  написав:

> Flat cable problems? The fact that the encoder inputs on the 7I39 do not
> work for you means something is wrong either on the 7I39s or the
> interconnections to the 7I43
>

The cable is probably OK. I bought 2 of them and no one works. And the
cable uses 2 completely pairs of wires for encoder 0 and 1. Very unlikely
that all these wires damaged. And some kind of signal was going to 7i43, so
they're can't be broken. The same with 2 7i39s, none of 2 do not work.
Something might be wrong with the power supply from 7i48 to 7i39, but the
power LED is on, and when I connect 7i48 to the same 7i43 with the same
cable - all OK.
Feels like I'm stuck completely, at least till my oscilloscope arrives
(maybe 2 weeks). Also feels like both 7i39 might be damaged - in the worst
case.


17 квітня 2012 р. 16:28 rob c  написав:

> So the 7i39 is a brush less DC motor, if your trying to see if the motor
> it self is functional just hook it up to a DC power supply, 12V would do
> just fine, if it rotates regardless of polarity the motor is good and you
> need to move onto the electronics.
>

BLDC motor won't rotate when connected to DC, unlykely to brushed DC motor.
But it jerks, that's enough to see it's OK.
In my case it's HIWIN linear DC motor, it just moves to a certain point
when connected to DC.

What are you hooking the encoder to? What kind of encoder is it?


It's linear incremental quadrature encoder, connected to MESA 7i39 card (dual
3 phase bridge driver for brushless 3 phase motors).

Andrew
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Re: [Emc-users] C Compiler - MPLAB

[Dave]

Have you used, or are you using the NXP software tools?

I'm downloading the NXP code_red LPCXpresso software right now.  They 
say it is low cost, but so far there has been no cost. :-)
(Where do they get these names from??  LPCXpresso??  )

>>To the inexperienced person, everything in the last 5+
posts is complete greek.<<

Don't underestimate the amount of brainpower on this list.  For a lot of the 
folks on this list, if they don't know it, they can figure it out in short 
order!

Dave




On 4/17/2012 8:21 AM, Erik Friesen wrote:
> I know this is somewhat up to debate, but having everything under one roof
> is worth something.  To the inexperienced person, everything in the last 5+
> posts is complete greek.
>
> On Tue, Apr 17, 2012 at 5:33 AM, John Prentice<
> j...@castlewd.freeserve.co.uk>  wrote:
>
>
>> Greetings
>>
>> - Original Message -
>> From: "Dave"
>>
>>
>>  
>>> On 4/16/2012 5:00 PM, Stephen Dubovsky wrote:
>>>
> As far as I can tell, ARMs are in a different class. (Price,
>
>> complexity,
>>  
> performance, etc.)
>
 There are dozens of companies making
 thousands of ARM processor variations.  One will have the
 peripherial/memory flavor at the price point you need.  The code is
 mostly
 compatible from the top to bottom of the cortex line (and *WAY* more
  
>> than
>>  
 porting from TI to AVR to PIC, etc)

 Stephen

  
>>>
>>> OK... I'll bite.   What kind of software tool chain and hardware is good
>>> to get started on a NXP LPC or similar Arm?
>>>
>>>
>>>
>> I am not an expert - in fact only just round the next corner from you.
>>
>> I followed this path:
>> (a) Arduino UNO/Mega ->  limitations of the 8 bit data.
>> (b) Netduino (Atmel AT91SAM7X512) C# in Microsoft VisualStudio - hopeless
>> speed on interpreted C# and difficulty of adding native code without
>> expensive Kiel tools.
>> (c) Netduino with IAR Embedded workbench - chip programming by USB but no
>> debugging
>> (d) Atmel AT91SAM7x-EK - same processor albeit smaller memory - JTAG
>> connector and a minimal debugging serial port. In-circuit programming and
>> debugging by SEGGER J-Link (I got the SAM-ICE customised version but that
>> might have been limiting for the future) over the JTAG plus printf to the
>> serial port.
>>
>> IAR is free for limited code size and non-commercial use. So far I have
>> found experimentation very pleasant.
>>
>> Be interested to read others comments.
>>
>> John Prentice
>>
>>
>>  
>


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Re: [Emc-users] machine shop advice

[John Thornton]

IIRC the level of OneCNC I purchased was somewhat over 1k... I can't 
completely recommend it as it does have some UI issues and is not the 
best but it does work for me.

Still no response from the attempt to get a trial version of alibre so 
unless you can create a dxf with all the information needed then that 
would have to be brought into the CAM software and extruded out to a 
solid for the CAM software or an industry standard 3-D file like iges or 
step or parasolid I can't even begin to look at it...

This is frustrating at the least...

John

On 4/17/2012 9:14 AM, Erik Friesen wrote:
> Whats is the cost for OneCNC?
>
> On Tue, Apr 17, 2012 at 10:06 AM, John Thornton  wrote:
>
>> Strangely enough my CAM software (OneCNC) will open a stl file but I
>> can't extract any edges or surfaces for machining.
>>
>> I registered twice to get the trial download but have not received the
>> email yet with the information... the next page gave me another register
>> page and wouldn't you know I got an email from a salesperson asap...
>>
>> http://mkt.alibre.com/testdrive
>>
>> John
>>
>>
>> On 4/17/2012 8:32 AM, Erik Friesen wrote:
>>> I get some new corrected ones on here after a bit.
>>>
>>> On Tue, Apr 17, 2012 at 9:28 AM, John Thornton   wrote:
>>>
 The top part just has some counterbores for SHCS's.  And yes I agree the
 part should be modeled with a radius on inside corners as allowed.

 John

 On 4/17/2012 8:13 AM, andy pugh wrote:
> On 17 April 2012 14:02, Erik Friesenwrote:
>> Everything else ended up with 1/8 radius.
> In that case you need to draw it with a 1/8" radius, or the machine
> shops will quote for the part as-drawn, and you will be paying a lot
> more for difficult machining that you don't need.
>
> I see, for example, that you don't have hexagonal recesses in your
> part, but they exist in the model.
>
> If you want to keep nuts captive then a rounded triangle will work
> nearly as well, but can be much more easily machined.
>

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Re: [Emc-users] BLDC on 7i43 + 7i39 + linear motors

[Peter C. Wallace]

On Tue, 17 Apr 2012, Andrew wrote:


Date: Tue, 17 Apr 2012 19:10:26 +0300
From: Andrew 
Reply-To: "Enhanced Machine Controller (EMC)"

To: "Enhanced Machine Controller (EMC)" 
Subject: Re: [Emc-users] BLDC on 7i43 + 7i39 + linear motors

17  2012 ??. 16:50 Peter C. Wallace  
??:



Flat cable problems? The fact that the encoder inputs on the 7I39 do not
work for you means something is wrong either on the 7I39s or the
interconnections to the 7I43




The cable is probably OK. I bought 2 of them and no one works. And the
cable uses 2 completely pairs of wires for encoder 0 and 1. Very unlikely
that all these wires damaged. And some kind of signal was going to 7i43, so
they're can't be broken. The same with 2 7i39s, none of 2 do not work.
Something might be wrong with the power supply from 7i48 to 7i39, but the
Bpower LED is on, and when I connect 7i48 to the same 7i43 with the same
cable - all OK.
Feels like I'm stuck completely, at least till my oscilloscope arrives
(maybe 2 weeks). Also feels like both 7i39 might be damaged - in the worst
case.


Did you verify the bit file md5 checksum?

Peter Wallace
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Re: [Emc-users] Hardinge HNC

[Kirk Wallace]

On Mon, 2012-04-16 at 20:59 -0700, Terry Christophersen wrote:
> That answers my question.
> That looks like a lot of files to get your turret to work.

I only needed to write the turret.comp and I think the s32equal.comp.
The rest were already available. These config files use the old HAL
commands and need to be updated. I will probably put everything into
one .hal file when I get around to it. I've learned a bit since
converting my HNC, so I would do some things differently now.

> What is the board next to the DAC ?
> I was under the understanding that the PWM main board read the encoders

Those are RS-422 differential receivers that convert the X, Z and
spindle encoder +/- signals to single ended signals. There are RS-422
transmitters on the encoder side of the cables.
http://www.maxim-ic.com/app-notes/index.mvp/id/723 

These were used to help prevent electrical noise becoming a problem. I'm
not sure they really helped. After putting filters on the VFD's, I've
had no noise issues.

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


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Re: [Emc-users] Kirks Hardinge project...

[Kirk Wallace]

On Tue, 2012-04-17 at 18:02 +0200, Roger Holmquist wrote:
> I just looked at your Hardinge lathe Kirk and found a HAL-file who by
> my Newbie eyes found unfinished!
> Ayway, just in case here it is:
> http://www.wallacecompany.com/cnc_lathe/HNC/emc2/nc_files/M111
> and I guess you simply haven't finished it yet, it's a copy if M110...
> 
> Nice to have a bolts&nut view as our Storebro260 might follow part of
> your path!
> 
> / Roger

M110 and M111 look good to me. They both disengage the high and low
clutch, wait a little bit, then M111 engages the High clutch, M110 the
Low clutch. Now that I know more and LinuxCNC has more features, I would
probably do this differently. I should try to create a G-code for the
spindle clutch, plus codes for the collet closer, part chute and parting
slide.

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


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Re: [Emc-users] C Compiler - MPLAB

[Dave]

On 4/17/2012 5:33 AM, John Prentice wrote:
> Greetings
>
> - Original Message -
> From: "Dave"
>
>
>
>> On 4/16/2012 5:00 PM, Stephen Dubovsky wrote:
>>  
 As far as I can tell, ARMs are in a different class. (Price, complexity,
 performance, etc.)
  
>>> There are dozens of companies making
>>> thousands of ARM processor variations.  One will have the
>>> peripherial/memory flavor at the price point you need.  The code is
>>> mostly
>>> compatible from the top to bottom of the cortex line (and *WAY* more than
>>> porting from TI to AVR to PIC, etc)
>>>
>>> Stephen
>>>
>>>
>>
>> OK... I'll bite.   What kind of software tool chain and hardware is good
>> to get started on a NXP LPC or similar Arm?
>>
>>
>>  
> I am not an expert - in fact only just round the next corner from you.
>
> I followed this path:
> (a) Arduino UNO/Mega ->  limitations of the 8 bit data.
> (b) Netduino (Atmel AT91SAM7X512) C# in Microsoft VisualStudio - hopeless
> speed on interpreted C# and difficulty of adding native code without
> expensive Kiel tools.
> (c) Netduino with IAR Embedded workbench - chip programming by USB but no
> debugging
> (d) Atmel AT91SAM7x-EK - same processor albeit smaller memory - JTAG
> connector and a minimal debugging serial port. In-circuit programming and
> debugging by SEGGER J-Link (I got the SAM-ICE customised version but that
> might have been limiting for the future) over the JTAG plus printf to the
> serial port.
>
> IAR is free for limited code size and non-commercial use. So far I have
> found experimentation very pleasant.
>
> Be interested to read others comments.
>
> John Prentice
>
>
>

John,

Thanks for the info..  your comments are very interesting.  The Netduino 
looks interesting but sounds like a non-starter.

It is just a little overwhelming what can be done with these ARM MCUs.

Dave


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[Emc-users] Bldc Drive

[Gabriel Willen]

What do you guys think about using one of these to drive a BLDC or AC Servo
motor? http://www.fairchildsemi.com/products/discrete/spm/index.html...
seems like they have a good selection.

Gabe
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Re: [Emc-users] Bldc Drive

[Erik Friesen]

Bad link?

On Tue, Apr 17, 2012 at 1:00 PM, Gabriel Willen wrote:

> What do you guys think about using one of these to drive a BLDC or AC Servo
> motor? http://www.fairchildsemi.com/products/discrete/spm/index.html...
> seems like they have a good selection.
>
> Gabe
>
> --
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Re: [Emc-users] Bldc Drive

[Dave Caroline]

remove trailing .
http://www.fairchildsemi.com/products/discrete/spm/index.html

Dave Caroline

On Tue, Apr 17, 2012 at 6:06 PM, Erik Friesen  wrote:
> Bad link?
>
> On Tue, Apr 17, 2012 at 1:00 PM, Gabriel Willen wrote:
>
>> What do you guys think about using one of these to drive a BLDC or AC Servo
>> motor? http://www.fairchildsemi.com/products/discrete/spm/index.html...
>> seems like they have a good selection.
>>
>> Gabe
>>
>> --
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Re: [Emc-users] Bldc Drive

[gene heskett]

On Tuesday, April 17, 2012 01:21:07 PM Erik Friesen did opine:

> Bad link?
> 
Yes, and no.  You probably did like me and picked up part of the elipses 
when you clicked on it.

Gary:  The accepted way to post a link is to put it between 's.  That 
makes the system able to automatically separate the link from other, 
perfectly legal chars within the link.

> On Tue, Apr 17, 2012 at 1:00 PM, Gabriel Willen 
wrote:
> > What do you guys think about using one of these to drive a BLDC or AC
> > Servo motor?
> > http://www.fairchildsemi.com/products/discrete/spm/index.html...
> > seems like they have a good selection.
> > 
> > Gabe
> > 
> > --
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> 
> 
> -- Better than sec? Nothing is better than sec when it comes to
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Cheers, Gene
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 soap, ballot, jury, and ammo. Please use in that order."
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My web page: 
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Re: [Emc-users] machine shop advice

[Erik Friesen]

Paid$$.  Try these - www.aercon.net/Public/PartsIges.zip

On Tue, Apr 17, 2012 at 12:14 PM, John Thornton  wrote:

> IIRC the level of OneCNC I purchased was somewhat over 1k... I can't
> completely recommend it as it does have some UI issues and is not the
> best but it does work for me.
>
> Still no response from the attempt to get a trial version of alibre so
> unless you can create a dxf with all the information needed then that
> would have to be brought into the CAM software and extruded out to a
> solid for the CAM software or an industry standard 3-D file like iges or
> step or parasolid I can't even begin to look at it...
>
> This is frustrating at the least...
>
> John
>
> On 4/17/2012 9:14 AM, Erik Friesen wrote:
> > Whats is the cost for OneCNC?
> >
> > On Tue, Apr 17, 2012 at 10:06 AM, John Thornton
>  wrote:
> >
> >> Strangely enough my CAM software (OneCNC) will open a stl file but I
> >> can't extract any edges or surfaces for machining.
> >>
> >> I registered twice to get the trial download but have not received the
> >> email yet with the information... the next page gave me another register
> >> page and wouldn't you know I got an email from a salesperson asap...
> >>
> >> http://mkt.alibre.com/testdrive
> >>
> >> John
> >>
> >>
> >> On 4/17/2012 8:32 AM, Erik Friesen wrote:
> >>> I get some new corrected ones on here after a bit.
> >>>
> >>> On Tue, Apr 17, 2012 at 9:28 AM, John Thornton
> wrote:
> >>>
>  The top part just has some counterbores for SHCS's.  And yes I agree
> the
>  part should be modeled with a radius on inside corners as allowed.
> 
>  John
> 
>  On 4/17/2012 8:13 AM, andy pugh wrote:
> > On 17 April 2012 14:02, Erik Friesenwrote:
> >> Everything else ended up with 1/8 radius.
> > In that case you need to draw it with a 1/8" radius, or the machine
> > shops will quote for the part as-drawn, and you will be paying a lot
> > more for difficult machining that you don't need.
> >
> > I see, for example, that you don't have hexagonal recesses in your
> > part, but they exist in the model.
> >
> > If you want to keep nuts captive then a rounded triangle will work
> > nearly as well, but can be much more easily machined.
> >
> 
> >>
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> >>
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> >>> monitoring Big Data applications. Try Boundary one-second
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> >>> https://lists.sourceforge.net/lists/listinfo/emc-users
> >>
> >>
> --
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> >>
> >
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>
>
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Re: [Emc-users] Bldc Drive

[Joachim Franek]

See:

http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Bridges_-_Half,_Full,_Three_Phase

From:
http://osdir.com/ml/emc-users-enhanced-machine-controller/2012-03/msg00162.html
FNB41060 - IGBT SMART PM,600V,10A
< 10 Euro at Farnell

Joachim 

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Re: [Emc-users] BLDC on 7i43 + 7i39 + linear motors

[rob c]

You don't need an Oscilloscope to determine if your power supply is faulty, 
also you can check to continuity of all your wires using a simple multimeter.
Keep it simple.
Again what kind of Encoder are you using?
Rob
http://www.whatisacnc.com  

> From: parallel.kinemat...@gmail.com
> Date: Tue, 17 Apr 2012 19:10:26 +0300
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] BLDC on 7i43 + 7i39 + linear motors
> 
> 17 квітня 2012 р. 16:50 Peter C. Wallace  написав:
> 
> > Flat cable problems? The fact that the encoder inputs on the 7I39 do not
> > work for you means something is wrong either on the 7I39s or the
> > interconnections to the 7I43
> >
> 
> The cable is probably OK. I bought 2 of them and no one works. And the
> cable uses 2 completely pairs of wires for encoder 0 and 1. Very unlikely
> that all these wires damaged. And some kind of signal was going to 7i43, so
> they're can't be broken. The same with 2 7i39s, none of 2 do not work.
> Something might be wrong with the power supply from 7i48 to 7i39, but the
> power LED is on, and when I connect 7i48 to the same 7i43 with the same
> cable - all OK.
> Feels like I'm stuck completely, at least till my oscilloscope arrives
> (maybe 2 weeks). Also feels like both 7i39 might be damaged - in the worst
> case.
> 
> 
> 17 квітня 2012 р. 16:28 rob c  написав:
> 
> > So the 7i39 is a brush less DC motor, if your trying to see if the motor
> > it self is functional just hook it up to a DC power supply, 12V would do
> > just fine, if it rotates regardless of polarity the motor is good and you
> > need to move onto the electronics.
> >
> 
> BLDC motor won't rotate when connected to DC, unlykely to brushed DC motor.
> But it jerks, that's enough to see it's OK.
> In my case it's HIWIN linear DC motor, it just moves to a certain point
> when connected to DC.
> 
> What are you hooking the encoder to? What kind of encoder is it?
> 
> 
> It's linear incremental quadrature encoder, connected to MESA 7i39 card (dual
> 3 phase bridge driver for brushless 3 phase motors).
> 
> Andrew
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Re: [Emc-users] C Compiler - MPLAB

[Jon Elson]

Dave wrote:
> It is just a little overwhelming what can be done with these ARM MCUs.
>   
Yes, I'm using the Beagle Board in some projects.  One of them receives 
TCP packets
and sets a 32-in 8-out signal multiplexer in a location that is 
sometimes inaccessible
due to radiation.  It is a totally minute application for such a 
powerful processor, but
it was extremely easy to set it all up, since it runs a COMPLETE Linux 
kernel
with X, Ethernet, compilers, etc.  The "hard drive" is a 4 Gb SD card.
I had never developed a TCP server before, I downloaded a few sample 
programs
off the net and had a working server running in one day.  The entire 
program,
including setting up the OMAP CPU's GPIO ports as I needed them, setting up
the server and binding it to the TCP port and converting incoming packets to
settings of the multiplexer is all less than 3 pages of C code!

Another project that is in the development stage now is a multi-channel
counter/ratemeter that will have a Glade interface accessible through
an ssh -X connection.

The Beagle Bone has even more features and costs less!

Jon

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Re: [Emc-users] the state of the Wiki

[Przemek Klosowski]

On Tue, Apr 17, 2012 at 11:18 AM, Kent A. Reed  wrote:
>
> Speaking of the Wiki , it could use a lot more
> editorial work. Looking at the Recent Changes listing, I see the usual
> few suspects making progress but there is a lot of work left.
>
> Back in January, after the decision was announced to rebrand our work
> LinuxCNC, I spent time under my SourceForge pseudonym CNCDreamer trying
> to fix up the most egregious instances of "EMC2" but had to leave a
> number of pages marked as "in progress" because they required technical
> changes I felt unprepared or even unqualified to make. Looking now, I
> see many of the same pages haven't been touched since. There are a
> number of pages that are terribly stale and the organization of the home
> page is trending toward chaos. Try to read it like you were new to
> LinuxCNC and see what you make of it.
>
> I wish I were in a position to do more of what needs to be done, but
> recent challenges at home make a concerted effort impossible. I'm lucky

You're very persuasive--this sounds like a useful project that I'd
like to help. Can you make a list of pages that require most urgent
update, in your opinion?

> to have time to skim the mail-list traffic and I have a bunch of
> projects that haven't progressed beyond acquisition of parts.
>

I know exactly what you mean :) we must be careful never to let our
wifes meet and talk :)

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