On 06/02/2011 11:11 AM, dave wrote:
> On Thu, 2011-06-02 at 09:28 -0400, gene heskett wrote:
>> On Thursday, June 02, 2011 09:17:34 AM Dave did opine:
>>
>>> On 6/1/2011 11:56 PM, gene heskett wrote:
This is NOT a kickback pawl. This is a solid steel plate that mounts
to the old blade gu
Seems to me the best way to cut off some fingers is to depend on a
switch to stop the blade. At some point it will fail and you from habit
will stick yore fingers near. Just keep your hands in your pockets
until the blade stops. Just like any other safe working habits depend on
good practice.
Hi all, I have a a dell computer with XP in it.I downloaded EMC with
Ubuntu 10.04 and burnt a desktop dvd. I turn the machine of and restart
with the dvd in the drive. IT starts reading the DVD the little dots
keep changing color on the splash screen as expected but the operation
comes to a
R.L. Wurdack wrote:
> I cut a lot of 6061and 7075 dry, but for finish cuts I use a little A9. Most
> of the parts I make are small. I get a mirror finish with a light final cut
> and just a brushed on coat of A9. I use it for tapping, drilling, and
> reaming as well. It smells pretty vile, but n
John Kasunich wrote:
> Andy Pugh wrote:
>
>> 2009/9/6 Erik Christiansen :
>>
>>
>>> Is thinner oil the answer?
>>>
>> Paraffin is commonly used, I believe.
>> (Google)
>> You might call it Kerosene.
>>
>>
>
> I use WD-40 for aluminum. It is mostly kerosene. On this side of the
Andy Pugh wrote:
> 2009/9/6 Erik Christiansen :
>
>
>> Is thinner oil the answer?
>>
>
> Paraffin is commonly used, I believe.
> (Google)
> You might call it Kerosene.
>
>
Early on as a machinist we cut all aluminum with kerosene or parafin.
When you are cutting at the slower speeds us
H & J Johnson wrote:
>
>
>> My suggestion is to just replace the pinion as most of the wear is
>> there. At some point it maybe necessary to replace the rack as
>> well.
>> Of course if the amount of engagement is adjustable there may
>> well be a
>> lot more service gotten out of the
H & J Johnson wrote:
> The Backlash is very small on the R/P [I can't measure it] but it does wear
> out over time [I'm on my second set of rack and third set of pinions] I've
> decided that it would be a better system if I moved to the ballscrew or a
> super hard helical R/P. The ballscrew cam
Jon Elson wrote:
> Douglas Pollard wrote:
>
>> My air compressor started up the same time I was starting my computer
>> and crashed my hard drive. I have a small cheap compressor and its all
>> the motor can do to start it and I guess it drew the current down.
Gene Heskett wrote:
> On Thursday 20 August 2009, Douglas Pollard wrote:
>
>> My air compressor started up the same time I was starting my computer
>> and crashed my hard drive. I have a small cheap compressor and its all
>> the motor can do to start it and I guess
My air compressor started up the same time I was starting my computer
and crashed my hard drive. I have a small cheap compressor and its all
the motor can do to start it and I guess it drew the current down.
Anyway just something to think about!!
sam sokolik wrote:
> I have played with this board
> http://www.newegg.com/Product/Product.aspx?Item=N82E16813121359
>
> nothing stellar but works (latency's stay just under 20us) Using the
> stock emc2 livecd. YMMV
>
> sam
>
> Douglas Pollard wrote:
>
>
Hi all, Have just lost my shop cnc computer motherboard gone as best I
can tell. Have been looking on line a new computers and there are a
couple cheap ones with an atom processor 1.6 ghtz a couple gigs of
ram am wondering if anyone has used this processor with Emc.
Anybody got an
Gene Heskett wrote:
> On Saturday 13 June 2009, Douglas Pollard wrote:
>
>
>> At 75 years old
>>
>
> Darn, I've been dethroned as the resident old codger, I won't be 75 till
> October 2009.
>
> Congrats Doug.
>
>
>>
Stuart Stevenson wrote:
> Gentlemen,
>As l as opinions are being proffered.
>When we encounter a print that the 'nominals' will not make the
> part as drawn we wonder just 'who the hell drew this?'. A license from
> a crackerjack box does not make a draftsman. With the advent of
Jon Elson wrote:
> Andy Pugh wrote:
>
>> Most of the dimensions for the general geometry were +/- 0.2mm except
>> for the flexural element, which was 0.2mm +/- 0.05mm dimensioned from
>> a face with a stacked-up positional tolerance of about 0.4mm.
>> The machinist set up his CNC mill to the cen
Rainer Schmidt wrote:
>> Nobody was allowed to do any unsupervised work for the first 2-3 years,
>> then after that they still had to have all their work checked and signed
>> off until they qualified.
>>
>
> What happened in the meantime? After a few rather catastrophic
> experiences I (compu
Rainer Schmidt wrote:
> On Fri, Jun 12, 2009 at 5:26 PM, Andy Pugh wrote:
>
>> 2009/6/12 :
>>
>>
>>> My Favorite unit
>>>
>
> In Germany we also use Angstrom per Millennium as Bureaucratic Unit. I
> observe similar speeds in the US. There seems to be some cross
> contamination in be
Andy Pugh wrote:
> 2009/6/12 Douglas Pollard :
>
>
>> The Germans have have a set of metric standards the English have
>> ISO standards and the Spanish have still another.
>>
>
> I _think_ that DIN (German) BS( British) JIS (Japanes) and the
Rainer Schmidt wrote:
> I can vouch for the problems the us imperial system is creating.
> There is not a single day in a custom shop I know off where there are
> no parts messed up because of conversion problems which simply would
> not exist with the metric system. Instead of simply shifting the
cmg...@sover.net wrote:
> Reducing metric to a decimal system only,is missing the point.
> The metric system is BASE TEN. An important distinction from imperial.
> The units of both metric and imperial could be considered arbitrary as
> most seem to change with refinement and our ability to divide
Dirk wrote:
> I am 100% metric and I hate it when I have to work with imperial
> parts. If I have a choice I will never take the imperial parts.
> Especially if it is not only about dimensions but also some heat,
> power or whatever awkward unit they come up with. It is asking for
> trouble
Rainer Schmidt wrote:
>> I believe that the proposed silicon sphere Avagadro/kg standard is
>> 95mm +/- 30nm, which is a truly impressive bit of manufacturing.
>> http://www.acpo.csiro.au/spheres.htm
>>
>>
>
> Owww I LOVE shiny stuff.. that sphere looks marvelous. I could
> not take my
Rainer Schmidt wrote:
>> I did once have the job of "machining" glass to 0.0001mm but that was
>> done with an Ion Mill so doesn't really count.
>>
>
> I default into Inches However, I am a metric guy who is constantly
> annoyed by the US imperial system.
> fractions of inches, 12 per foot
Steve Blackmore wrote:
> On Wed, 10 Jun 2009 18:06:57 -0400, you wrote:
>
>
>
>> Any case a flex of .02 would be unacceptable for us. We do not see
>> that kind of flex. It's really around 0.005 .
>> The belts are european steel cable loaded AT5 belts 3/4 wide and
>> driven on AL pulley's.
>
Andy Pugh wrote:
> 2009/6/10 Jack Coats :
>
>
>> Most of us are just trying to 'get-er-done', so working within 'practical
>> tollerances'
>> for 'practical solutions', is probably the most helpful.
>>
>
> Absolutely, I posted a rather longer message on pretty much that subject.
>
>
Andy Pugh wrote:
> 2009/6/10 Jack Coats :
>
>
>> Most of us are just trying to 'get-er-done', so working within 'practical
>> tollerances'
>> for 'practical solutions', is probably the most helpful.
>>
>
> Absolutely, I posted a rather longer message on pretty much that subject.
>
>
If Y
Andy Pugh wrote:
> 2009/6/9 Frank Tkalcevic :
>
>> How much "backlash" would the rubber teeth on the belt contribute?
>>
>
> "Some" I guess. Though it might matter less than you think. In fact,
> that thought has been occurring to me throughout this thread. There
> has been a lot of concern
Hi all,
I took the attached post off of the Mach2 e-mail list. Apparently
this fellow has built a cad cam system and would like make it open
source. I don't know enough to advise him but maybe some her could join
that list and post some good advice to him that would be helpful. If
this att
Kirk Wallace wrote:
> On Thu, 2009-05-21 at 16:35 -0400, Douglas Pollard wrote:
>
>> I downloaded synergy and really like what I am seeing. Did a little
>> conversational programing in Synergy lite. I think it will be perfect
>> for a doing some one off parts or mod
I downloaded synergy and really like what I am seeing. Did a little
conversational programing in Synergy lite. I think it will be perfect
for a doing some one off parts or modifying some parts bought to be
changed and used. The price is right $89.95 I will play with it a week
and If I don't
Marty Swartz wrote:
> I think it's a dynamite idea: I wish they had one in Pittburgh. (I've been
> in contact with them, and someday. All I need is a rich ehough friend to
> make it NOW. ) Just think of walking in having access to all that gear,
> rather than having to buy your own eqipment, etc,
Mark Wendt (Contractor) wrote:
> They were my favorite machines to sysadmin!
>
> Mark
>
> At 10:21 AM 5/13/2009, you wrote:
>
>> Anyone that likes/liked Digital products can't be a bad guy. I still
>> have a couple of 11's tucked away.
>>
>> Dave
>> On May 13, 2009, at 7:12 AM, Mark Wendt (Cont
Kirk Wallace wrote:
> On Tue, 2009-05-12 at 14:21 -0400, Douglas Pollard wrote:
>
>> Kirk Wallace wrote:
>>
>>> On Sat, 2009-05-09 at 11:45 -0700, Kirk Wallace wrote:
>>>
>>>
>>>> I would like to make gears, but I need
Kirk Wallace wrote:
> On Sat, 2009-05-09 at 11:45 -0700, Kirk Wallace wrote:
>
>> I would like to make gears, but I need to know the tooth shape in order
>> to make a form tool or cut an outline. This is what I came up with, if
>> there are any mistakes or bad assumptions, please let me know.
>>
I recently posted an e-mail to this list and also posted an e-mail
to another list about the proprietary CNC software that is discussed
there as I have the choice to use either.
Here I got several thoughtful answers there I got none. They are
nice people on that other list and seem to tr
I bought a used IBM Think Centre 3 ghz. intel chip that after a latency
test proved to be useless in running EMC2. I also have an Hp dual
core 64 bit machine that is my personal desktop machine. 2.4 ghz 1 g
ram I thought EMC2 would not run on it. I recently saw someplace on line
saying
Kirk Wallace wrote:
> On Sat, 2009-05-09 at 15:07 -0400, John Kasunich wrote:
>
>> Kirk Wallace wrote:
>>
> ... snip
>
>> I assumed the rack
>>
>>> base and top are horizontally midway between the rack center line and
>>> the 20 degree peaks, such that the X length of the rise, flat
Erik Christiansen wrote:
> On Sun, May 03, 2009 at 09:26:40AM -0400, Gene Heskett wrote:
>
>> This I would do, if I ever have the problem. I have also probed for contour
>> several times and have not had any errors of more than a thou or two in the
>> data. This using the sliding tube opto-i
I bought some cable to run stepper motors off of. I was told it was
shielded. It is not. If I try to use this am I going to have problems
caused by stray signals or static? Is it likely to be alright or am I
looking for trouble??
Doug
Douglas Pollard wrote:
> I am trying to get my x,y and z axises set up in EMC.My stepper
> board is an Xylotex 4 axis but will only use three for now.
>When I tried to test the axis i got the following error message.
> I recieved this message from each axis when i tried
I am trying to get my x,y and z axises set up in EMC.My stepper
board is an Xylotex 4 axis but will only use three for now.
When I tried to test the axis i got the following error message.
I recieved this message from each axis when i tried to run test.I
don't yet have motors.
i Doug
>
> On Wed, 2007-10-31 at 11:07 -0400, Douglas Pollard wrote:
>
>> HI All, I am a retired machinist and I have a little experience
>> running and programing CNC. I have a drill press that with a X, Y axis
>> milling vice on it. I do a little milling o
HI All, I am a retired machinist and I have a little experience
running and programing CNC. I have a drill press that with a X, Y axis
milling vice on it. I do a little milling on little home shop
projects. I have morris taper endmill attachments and it don't do to
bad . I would like to r
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