viesturs.la...@gmail.com wrote:
From: Viesturs Lācis viesturs.la...@gmail.com
Subject: Re: [Emc-users] Some advice needed
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Date: Tuesday, May 15, 2012, 5:28 AM
2012/5/15 charles green xxzzb...@yahoo.com:
i dont see why to care what
2012/5/14 charles green xxzzb...@yahoo.com:
well, there's your spline form right there in the video. screen capture.
the eliptical bearing is nice, but you can get away with a diametrically
opposed pair of rollers for that function.
No, diametrically opposed rollers is bad idea. Rollers
On 15 May 2012 07:29, Viesturs Lācis viesturs.la...@gmail.com wrote:
If I cannot get the flexible bearings, then there is option of
eccentric discs as a wave generator.
You could probably dismantle a normal bearing, machine down the races
to make them much thinnner, and then press them onto an
Subject: Re: [Emc-users] Some advice needed
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Date: Monday, May 14, 2012, 11:29 PM
2012/5/14 charles green xxzzb...@yahoo.com:
well, there's your spline form right there in the
video. screen capture. the eliptical bearing
precise, durable,
compact, stylish, and expensive mechanical clock modules can be had for only
the asking of very large amounts of currency credits.
--- On Tue, 5/15/12, andy pugh bodge...@gmail.com wrote:
From: andy pugh bodge...@gmail.com
Subject: Re: [Emc-users] Some advice needed
To: Enhanced
On 15 May 2012 10:42, charles green xxzzb...@yahoo.com wrote:
the discreet spline teeth are also an approximation. in fact, anything made
out of atoms is flexible and grainy. why not construct mechanisms from
massless rigid rods and such?
I think Viesturs has a point about the sides being
On 12 May 2012 00:11, Viesturs Lācis viesturs.la...@gmail.com wrote:
The problem is that they do not have the tools for 0,5 module,
smallest they have is 0,7. But with ~124 mm pitch diameter the tooth
count changes from 247 to 177, which significantly reduces the
reduction ratio - from
...@gmail.com
Subject: Re: [Emc-users] Some advice needed
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Date: Tuesday, May 15, 2012, 2:55 AM
On 15 May 2012 10:42, charles green
xxzzb...@yahoo.com
wrote:
the discreet spline teeth are also an approximation.
in fact
On 15 May 2012 11:04, charles green xxzzb...@yahoo.com wrote:
i dont see why to care what any part aside from the engagement area is doing
Now I think about it some more, I think you might be right.
The cup is probably a little stiffer with the edge fully restrained,
but I don't think the
On Tuesday, May 15, 2012 07:32:44 AM charles green did opine:
the discreet spline teeth are also an approximation. in fact, anything
made out of atoms is flexible and grainy. why not construct mechanisms
from massless rigid rods and such?
I have seen some drawings of such, from
On Tuesday, May 15, 2012 07:38:31 AM andy pugh did opine:
On 15 May 2012 10:42, charles green xxzzb...@yahoo.com wrote:
the discreet spline teeth are also an approximation. in fact,
anything made out of atoms is flexible and grainy. why not construct
mechanisms from massless rigid rods
2012/5/15 charles green xxzzb...@yahoo.com:
i dont see why to care what any part aside from the engagement area is doing,
except maybe at some resonance frequencies (grease it up good) and/or high
speeds (why use a reducer for high speed application?).
With 200:1 reduction ratio the input
On 15 May 2012 13:28, Viesturs Lācis viesturs.la...@gmail.com wrote:
No, those flexible bearings actually are _required_ to be flexed for
normal operation . They even specify a range of min and max ovality -
(D-d)/2 = 1,2...1.6mm (D and d - large and small diameters of elipse)
for flexible
On 14 May 2012 06:00, charles green xxzzb...@yahoo.com wrote:
i wonder, in the ball worm mechanism, why not make the worm engagement happen
over more like a quarter of the diameter of the gear.
This can be done, to an extent, with conventional worms, but it gets a
bit difficult as eventually
advantage of constraning the motion to a
plane.
--- On Mon, 5/14/12, andy pugh bodge...@gmail.com wrote:
From: andy pugh bodge...@gmail.com
Subject: Re: [Emc-users] Some advice needed
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Date: Monday, May 14, 2012, 3:11 AM
set to avoid getting
stuck at the limits of stroke. the result is another complex mechanism.
--- On Sun, 5/13/12, Kirk Wallacekwall...@wallacecompany.com wrote:
From: Kirk Wallacekwall...@wallacecompany.com
Subject: Re: [Emc-users] Some advice needed
To: Enhanced Machine Controller
On 14 May 2012 13:41, Dave e...@dc9.tzo.com wrote:
There were/are some manufacturers of hydraulic cylinder driven milling
machines.
I used to drive a servo-hydraulic tensile-testing machine. The
actuator was extremely stiff and extremely fast. And _extremely_
expensive.
That particular one used
On Mon, 14 May 2012 14:03:51 +0100
andy pugh bodge...@gmail.com wrote:
On 14 May 2012 13:41, Dave e...@dc9.tzo.com wrote:
There were/are some manufacturers of hydraulic cylinder driven
milling machines.
I used to drive a servo-hydraulic tensile-testing machine. The
actuator was extremely
Moog Hydra Point mills are hydraulic cylinder actuated.
On May 14, 2012 10:52 AM, dave dengv...@charter.net wrote:
On Mon, 14 May 2012 14:03:51 +0100
andy pugh bodge...@gmail.com wrote:
On 14 May 2012 13:41, Dave e...@dc9.tzo.com wrote:
There were/are some manufacturers of hydraulic
Dave wrote:
There were/are some manufacturers of hydraulic cylinder driven milling
machines.
I forget who made them in the USA - Cincinnati Milacron perhaps.
Cincinnatti made the machine, Moog made the control. The control was
all pneumatic,
no interpolation, not even linear. It used
I had two MHP machines. MHP = M(oog) H(ydra) P(oint)
They ran gcode just like any NC/CNC machine. Each linear axis had two
cylinders opposing one another. A hydraulic servo valve released pressure
from one or another cylinder to allow the table to move away from the high
pressure side.
The
On 14 May 2012 20:51, Stuart Stevenson stus...@gmail.com wrote:
I had two MHP machines. MHP = M(oog) H(ydra) P(oint)
Interesting:
http://www.lathes.co.uk/bridgeport/page18.html
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
Mine looked very similar. My control had a CRT and could hold a short
program. I believe the tape reader was optic.
On Mon, May 14, 2012 at 2:59 PM, andy pugh bodge...@gmail.com wrote:
On 14 May 2012 20:51, Stuart Stevenson stus...@gmail.com wrote:
I had two MHP machines. MHP = M(oog) H(ydra)
Stuart Stevenson wrote:
I had two MHP machines. MHP = M(oog) H(ydra) P(oint)
They ran gcode just like any NC/CNC machine. Each linear axis had two
cylinders opposing one another. A hydraulic servo valve released pressure
from one or another cylinder to allow the table to move away from the
On Mon, 14 May 2012 20:40:14 -0500
Jon Elson el...@pico-systems.com wrote:
Stuart Stevenson wrote:
I had two MHP machines. MHP = M(oog) H(ydra) P(oint)
They ran gcode just like any NC/CNC machine. Each linear axis had
two cylinders opposing one another. A hydraulic servo valve
released
2012/5/13 charles green xxzzb...@yahoo.com:
easy solution: segment the program into a sequence of files, one for each
different tool.
Yes, that is how it is done now.
Can anyone suggest some more sources for tools to create internal
module 0,5 gears?
Viesturs
: Freitag, 11. Mai 2012 22:50
An: Enhanced Machine Controller (EMC)
Betreff: [Emc-users] Some advice needed
Hello, gentlemen!
I would appreciate, if someone could share some advice on 3 issues I am
stuck with at the moment.
1) is there a way to do manual tool touch-off during manual toolchange
2012/5/13 Peter Georgi georg...@bluewin.ch:
Hi Viesturs,
RC Machines (http://www.rc-machines.com/index.php) in Luxmeburg has almost
every thing a mechanical heart desires. They export to all of Europe even to
Switzerland ;-), though they probably also send to LV.
Most of the stuff they sale
wire electric discharge cutting?
--- On Sun, 5/13/12, Viesturs Lācis viesturs.la...@gmail.com wrote:
From: Viesturs Lācis viesturs.la...@gmail.com
Subject: Re: [Emc-users] Some advice needed
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Date: Sunday, May 13, 2012, 12
2012/5/13 charles green xxzzb...@yahoo.com:
wire electric discharge cutting?
How precise is it?
My tolerances are +/- (0,01...0,02)mm
Viesturs
--- On Sun, 5/13/12, Viesturs Lācis viesturs.la...@gmail.com wrote:
From: Viesturs Lācis viesturs.la...@gmail.com
Subject: Re: [Emc-users] Some
, but dont know what
it is. remote control and data pipes maybe?
--- On Sat, 5/12/12, dave dengv...@charter.net wrote:
From: dave dengv...@charter.net
Subject: Re: [Emc-users] Some advice needed
To: emc-users@lists.sourceforge.net
Date: Saturday, May 12, 2012, 10:40 PM
On Sat, 12 May 2012 16:43
.
--- On Sun, 5/13/12, Viesturs Lācis viesturs.la...@gmail.com wrote:
From: Viesturs Lācis viesturs.la...@gmail.com
Subject: Re: [Emc-users] Some advice needed
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Date: Sunday, May 13, 2012, 4:12 AM
2012/5/13 charles green
On 13 May 2012 12:04, charles green xxzzb...@yahoo.com wrote:
wire electric discharge cutting?
I was thinking that might be the easiest approach for low volume.
How many of these do you need to make? And what is the budget?
As far as I know the only way to make internal gears is by shaving
footprint is not an issue, scale everything up and use an endmill.
..or a bandsaw. or a hyrdoabrasive jet or a laser. or a lamination process.
or a 3d voxel type printer.
--- On Sun, 5/13/12, andy pugh bodge...@gmail.com wrote:
From: andy pugh bodge...@gmail.com
Subject: Re: [Emc-users] Some
2012/5/13 andy pugh bodge...@gmail.com:
On 13 May 2012 12:04, charles green xxzzb...@yahoo.com wrote:
wire electric discharge cutting?
I was thinking that might be the easiest approach for low volume.
How many of these do you need to make? And what is the budget?
Don't know, maybe 2 or 3.
Subject: Re: [Emc-users] Some advice needed
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Date: Sunday, May 13, 2012, 5:02 AM
2012/5/13 andy pugh bodge...@gmail.com:
On 13 May 2012 12:04, charles green xxzzb...@yahoo.com
wrote:
wire electric discharge cutting?
I
2012/5/13 charles green xxzzb...@yahoo.com:
i read about making precise worm gears for telescope mounts starting with a
more or less rough notching of the gear followed by a 'running in' of the
mating surfaces with abrasive fluid until the final form was achieved.
In school this was briefly
On 13 May 2012 13:38, charles green xxzzb...@yahoo.com wrote:
primitive clock gears were cut from wood by hand,
One of Harrison's wooden clocks is still running, just short of 300 years later.
http://www.bbc.co.uk/bradford/content/articles/2009/04/06/nostell_john_harrison_feature.shtml
--
atp
a 'hunting tooth' design for worms with more than one start.
messy process either way.
has anyone ever heard of a ball worm?
--- On Sun, 5/13/12, Viesturs Lācis viesturs.la...@gmail.com wrote:
From: Viesturs Lācis viesturs.la...@gmail.com
Subject: Re: [Emc-users] Some advice needed
To: Enhanced
On 13 May 2012 22:43, charles green xxzzb...@yahoo.com wrote:
has anyone ever heard of a ball worm?
I have seen one developed by a college urology department, which is
slightly scary.
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
ha!
--- On Sun, 5/13/12, andy pugh bodge...@gmail.com wrote:
From: andy pugh bodge...@gmail.com
Subject: Re: [Emc-users] Some advice needed
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Date: Sunday, May 13, 2012, 2:52 PM
On 13 May 2012 22:43, charles green
xxzzb
andy pugh wrote:
On 13 May 2012 22:43, charles green xxzzb...@yahoo.com wrote:
has anyone ever heard of a ball worm?
I have seen one developed by a college urology department, which is
slightly scary.
Yes, before rack and pinion steering, cars used Armstrong steering gear,
On Sun, 2012-05-13 at 14:43 -0700, charles green wrote:
... snip
has anyone ever heard of a ball worm?
... snip
http://urobotics.urology.jhu.edu/projects/BW/
To me, it seems too light duty for CNC work. Maybe more than one input
shaft could be used to spread the load and maybe also provide
On 5/13/2012 8:21 PM, Jon Elson wrote:
andy pugh wrote:
On 13 May 2012 22:43, charles greenxxzzb...@yahoo.com wrote:
has anyone ever heard of a ball worm?
I have seen one developed by a college urology department, which is
slightly scary.
Yes, before rack and
many
revolutions would require a two phase screw set to avoid getting stuck at the
limits of stroke. the result is another complex mechanism.
--- On Sun, 5/13/12, Kirk Wallace kwall...@wallacecompany.com wrote:
From: Kirk Wallace kwall...@wallacecompany.com
Subject: Re: [Emc-users] Some advice
1) is there a way to do manual tool touch-off during manual toolchange
in a middle of g-code file?
Not yet. I think there is enough momentum now that there will be in
the next major release.
As a user of a simple machine, I'd vote for that.
Mike
...@gmail.com
Subject: Re: [Emc-users] Some advice needed
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Date: Friday, May 11, 2012, 11:07 PM
1) is there a way to do manual tool touch-off
during manual toolchange
in a middle of g-code file?
Not yet. I think
Hello, gentlemen!
I would appreciate, if someone could share some advice on 3 issues I
am stuck with at the moment.
1) is there a way to do manual tool touch-off during manual toolchange
in a middle of g-code file? I know that there is an option to move to
particular toolchange location for
On 11 May 2012 21:49, Viesturs Lācis viesturs.la...@gmail.com wrote:
1) is there a way to do manual tool touch-off during manual toolchange
in a middle of g-code file?
Not yet. I think there is enough momentum now that there will be in
the next major release.
2) can somebody suggest me a
2012/5/12 andy pugh bodge...@gmail.com:
http://www.arceurotrade.co.uk/Catalogue/Collets/ER-Collets-Collet-Chucks/ER20-Collets-Collet-Chucks
Thanks for the link, I had not found this one!
Do you want an actual hob (spiral, needs the right machine, or EMC2
being clever) or a single-tooth
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