Only issue I can see here in this configuration is with tensioning both
idlers. If the motor is spinning in either direction, one idler is always
going to be tightening the belt, and the other is going to try to be
loosening due to driving forces acting on the idler from the belt and the
smaller p
You only peck tap when doing it by hand. When you machine tap you always
go all the way in and back out. It is wise to use good quality taps and
inspect the first few cutting edges with a strong glass before use to
look for signs of wear like cupping.
JT
On 11/2/2013 3:50 PM, Gene Heskett wrot
Hi,
We had a Logitech pad on our linuxcnc driven cnc but that unfortunately
broke... now we bought a xbox 360 usb gamepad and the config we used
before does not work anymore.
does anybody has a working config laying around we could use? I would be
very thankful :)
thanks in advance!
-sebastian
I would not use a spring tensioner but rather tension the belt to a
permanent fixed tension. Just check it on a regular basis. My experience
with spring tensioners is that they will produce backlash or movement
because they can.
A good belt will have no stretch or very little over the short dist
Andy,
I am busy with such a design. I think it is called an Orbital drive. I
have not cut any parts yet but will start soon. Can you share your
experiences with this idea?
On 2013/11/03 12:53 AM, andy pugh wrote:
> On 2 November 2013 19:47, Stuart Stevenson wrote:
>> Andy,
>>this is my idea
Hi Bertho,
A quick question about gcmc. Are the contents of the prologue and
epilogue hard-coded into the program? Or can I make them anything I want.
Thanks,
Tony
-Original Message-
From: Bertho Stultiens
Sent: Saturday, November 02, 2013 3:10 PM
To: Enhanced Machine Controller (EMC)
S
On 11/03/2013 03:08 PM, Tony Zampini wrote:
> A quick question about gcmc. Are the contents of the prologue and
> epilogue hard-coded into the program? Or can I make them anything I want.
They are hard-coded, but you can disable its generation by adding the
"-q" option on the command-line.
The re
John Thornton wrote:
> You only peck tap when doing it by hand. When you machine tap you always
> go all the way in and back out. It is wise to use good quality taps and
> inspect the first few cutting edges with a strong glass before use to
> look for signs of wear like cupping.
>
> JT
>
The
Hi again,
So, I have played with the xemc.cc code to uncover some C++ interfaces and
I have also played with using linuxcncrsh to control remotely, which is
obviously simpler.
In my situation, I also need to monitor an analog input which will return a
voltage.
I have an example of doing somethin
On 11/03/2013 03:32 PM, Bertho Stultiens wrote:
> In principle, it should be possible to alter gcmc to output relative
> position code, which subsequently can be reused in other programs. It
> has been a thought I have been playing with.
To that end,...
I just had a look at relative outputs and i
On Sun, 2013-11-03 at 06:28 -0500, Mark Wendt wrote:
> Only issue I can see here in this configuration is with tensioning both
> idlers. If the motor is spinning in either direction, one idler is always
> going to be tightening the belt, and the other is going to try to be
> loosening due to drivi
it is a cycloidal drive
On Sun, Nov 3, 2013 at 7:32 AM, Marius Liebenberg wrote:
> Andy,
> I am busy with such a design. I think it is called an Orbital drive. I
> have not cut any parts yet but will start soon. Can you share your
> experiences with this idea?
>
> On 2013/11/03 12:53 AM, andy pu
Thats the one!! I knew it has something to do with round and round.
On 2013/11/03 05:49 PM, Stuart Stevenson wrote:
> it is a cycloidal drive
>
>
> On Sun, Nov 3, 2013 at 7:32 AM, Marius Liebenberg
> wrote:
>
>> Andy,
>> I am busy with such a design. I think it is called an Orbital drive. I
>> ha
On 11/03/2013 08:04 AM, Walter Cigana wrote:
> So, I have played with the xemc.cc code to uncover some C++ interfaces and
> I have also played with using linuxcncrsh to control remotely, which is
> obviously simpler.
>
> In my situation, I also need to monitor an analog input which will return a
>
On Sunday 03 November 2013 12:58:44 John Thornton did opine:
> You only peck tap when doing it by hand. When you machine tap you always
> go all the way in and back out. It is wise to use good quality taps and
> inspect the first few cutting edges with a strong glass before use to
> look for signs
On Sun, Nov 3, 2013, at 01:27 PM, Gene Heskett wrote:
>
> I can appreciate that John, but my excuse is that I am at least 200 miles
> from anyplace I can buy a 'quality' tap that I can eyeball for edge etc
> before I drop the card for a 10 pack, one thats strong enough to do that.
Gene:
You
On Sunday 03 November 2013 13:56:49 John Kasunich did opine:
> On Sun, Nov 3, 2013, at 01:27 PM, Gene Heskett wrote:
> > I can appreciate that John, but my excuse is that I am at least 200
> > miles from anyplace I can buy a 'quality' tap that I can eyeball for
> > edge etc before I drop the card
I'm too lazy to get an igs viewer, is it a harmonic drive? I have a
pile of harmonic drives in the basement off of a robot I bought cheap.
On Sun, Nov 3, 2013 at 10:49 AM, Stuart Stevenson wrote:
> it is a cycloidal drive
>
>
> On Sun, Nov 3, 2013 at 7:32 AM, Marius Liebenberg
> wrote:
>
>> And
Gene Heskett wrote:
> Now if someone knows where I can buy an 8-32 tap that can tap an 8-32 blind
> hole pre-drilled .250" deeper than the needed threads, tapped as deep as
> the tap is long and do it repeatedly for a dozen holes before I am rigging
> to EDM its broken pieces out of the hole, I
Spiral point taps are made for through hole tapping.. they tend to push
the chips ahead of the tap. Not good for a blind hole.
http://www.shars.com/product_categories/view/2160902/HSS_Spiral_Point_TapsPlug_Style
Spiral flute taps work well for blind holes.
http://www.grainger.com/Grainger/WIDIA
On 3 November 2013 12:27, Sebastian Bachmann wrote:
> We had a Logitech pad on our linuxcnc driven cnc but that unfortunately
> broke... now we bought a xbox 360 usb gamepad and the config we used
> before does not work anymore.
> does anybody has a working config laying around we could use? I wo
On 3 November 2013 19:31, Gene Heskett wrote:
> And maybe I'm just in a bad mood, its looking more & more as if I'll have
> to find about 35 large for a new knee if I want to walk well again.
35k would buy you nicer set of machine tools. How hard can it be to
machine a new knee?
--
atp
If you
On 03/11/13 21:39, andy pugh wrote:
> On 3 November 2013 19:31, Gene Heskett wrote:
>> And maybe I'm just in a bad mood, its looking more & more as if I'll have
>> to find about 35 large for a new knee if I want to walk well again.
> 35k would buy you nicer set of machine tools. How hard can it b
On Sun, Nov 3, 2013, at 04:39 PM, andy pugh wrote:
> On 3 November 2013 19:31, Gene Heskett wrote:
> > And maybe I'm just in a bad mood, its looking more & more as if I'll have
> > to find about 35 large for a new knee if I want to walk well again.
>
> 35k would buy you nicer set of machine to
Not harmonic
Same concept of two gears - one with one less tooth than the other.
All parts are solid - no flexing.
Search for orbital drive.
On Nov 3, 2013 1:55 PM, "Eric Keller" wrote:
> I'm too lazy to get an igs viewer, is it a harmonic drive? I have a
> pile of harmonic drives in the basemen
On Sunday 03 November 2013 18:04:07 Jon Elson did opine:
> Gene Heskett wrote:
> > Now if someone knows where I can buy an 8-32 tap that can tap an 8-32
> > blind hole pre-drilled .250" deeper than the needed threads, tapped
> > as deep as the tap is long and do it repeatedly for a dozen holes
> >
On Sunday 03 November 2013 18:39:01 Dave Cole did opine:
> Spiral point taps are made for through hole tapping.. they tend to push
> the chips ahead of the tap. Not good for a blind hole.
>
> http://www.shars.com/product_categories/view/2160902/HSS_Spiral_Point_Ta
> psPlug_Style
>
> Spiral flut
On Sunday 03 November 2013 18:42:31 andy pugh did opine:
> On 3 November 2013 19:31, Gene Heskett wrote:
> > And maybe I'm just in a bad mood, its looking more & more as if I'll
> > have to find about 35 large for a new knee if I want to walk well
> > again.
>
> 35k would buy you nicer set of m
On Sun, 03 Nov 2013 15:40:15 -0500, you wrote:
>Spiral point taps are made for through hole tapping.. they tend to push
>the chips ahead of the tap. Not good for a blind hole.
>
>http://www.shars.com/product_categories/view/2160902/HSS_Spiral_Point_TapsPlug_Style
>
>Spiral flute taps work well f
Gene Heskett wrote:
> What do you use for cutting oil in alu?
I got this stuff about 20 years ago, called "alum-tap". It is amazing,
I have compared hand-tapping with oil and the alum-tap, the effort
is about half with the alum-tap. It is probably almost 100 % high-pressure
lube. It is a pale bl
On Sunday 03 November 2013 18:46:42 David Armstrong did opine:
> On 03/11/13 21:39, andy pugh wrote:
> > On 3 November 2013 19:31, Gene Heskett wrote:
> >> And maybe I'm just in a bad mood, its looking more & more as if I'll
> >> have to find about 35 large for a new knee if I want to walk well
>
Hi Stuart
> Not harmonic
> Same concept of two gears - one with one less tooth than the other.
> All parts are solid - no flexing.
Hmm, so I don't get it. The ratio is almost one so, right?
Flo
--
Android is increasing
I have a can of "Tap Magic Aluminum" that works better than anything
else I have used.
Pretty common. I think that even Amazon sells the stuff. Google it and
pick your source. Even Walmart has it on their website! Crazy.
Dave
On 11/3/2013 6:47 PM, Jon Elson wrote:
> Gene Heskett wrote:
>>
On Sunday 03 November 2013 20:09:14 Dave Cole did opine:
> I have a can of "Tap Magic Aluminum" that works better than anything
> else I have used.
> Pretty common. I think that even Amazon sells the stuff. Google it and
> pick your source. Even Walmart has it on their website! Crazy.
>
> Dave
On 11/02/2013 08:10 PM, Bertho Stultiens wrote:
>> In the future, would it be possible for you to provide an updated gcmc.exe
>> whenever you update the linux version? Or is this asking too much :)
> I am going to write a webpage dedicated to gcmc and I hope to be able to
> have multiple builds on
At some point for hand tapping with a cordless drill, buying expensive
taps has diminishing return. If you are doing 5000 holes with
controlled feed in a nice mill then buying really good tooling might
make perfect sense. But I oftentimes break off taps simply because I
jog or twist. Unle
>>just got on their spammer list by asking for samples of all 4
You might want to tell them that you need a gallon of the stuff to do a fair
comparison.. ;-)
Dave
On 11/3/2013 8:11 PM, Gene Heskett wrote:
> On Sunday 03 November 2013 20:09:14 Dave Cole did opine:
>
>> I have a can of "Tap Mag
On Sunday 03 November 2013 20:33:39 Dave Cole did opine:
> >>just got on their spammer list by asking for samples of all 4
>
> You might want to tell them that you need a gallon of the stuff to do a
> fair comparison.. ;-)
>
> Dave
Chuckle, I didn't want to push my luck. If it works as well a
http://en.wikipedia.org/wiki/Cycloidal_drive
this link - with the 11 outer teeth (white) and 10 teeth on the center
(moving yellow) gear - gives a 10 to 1 gear reduction between the input
(green) shaft and the output (purple) shaft
with finer teeth the reduction can be much higher
On Sun, Nov 3,
You comment about McMaster Carr is right on target. Their sales office NEVER
closes. They do have good quality material, and they somehow get it to you in
record time. If you know someone who is a regular customer, they get a new
catalog about every six months, ask to get the old one. It is
On 11/3/2013 2:39 PM, andy pugh wrote:
> On 3 November 2013 19:31, Gene Heskett wrote:
>> And maybe I'm just in a bad mood, its looking more & more as if I'll have
>> to find about 35 large for a new knee if I want to walk well again.
>
> 35k would buy you nicer set of machine tools. How hard can
Gene Heskett wrote:
> Chuckle, excellent reasoning Andy, but how long would it take me to learn
> the new tools, and how many iterations & material tests would it take to
> equal the commercial stuff? Then once we have that estimate, the next
> question is do I have that much time left.
>
> So
Dave Cole wrote:
> At some point for hand tapping with a cordless drill, buying expensive
> taps has diminishing return. If you are doing 5000 holes with
> controlled feed in a nice mill then buying really good tooling might
> make perfect sense. But I oftentimes break off taps simply becaus
On Sun, Nov 3, 2013, at 02:31 PM, Gene Heskett wrote:
> On Sunday 03 November 2013 13:56:49 John Kasunich did opine:
> >
> > You really need to get familiar with the McMaster Carr website. They
> > tend to sell decent quality stuff, and even if you are so far back in
> > the woods that they hav
I work with some machine builders and they generally use McMaster Carr
for the things that they need either quickly for an "ok" cost or for
something that they can't find elsewhere. MC has such a huge range of
products and they ship very fast. Many times we would be working on a
machine and
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