Andy,
Thanks for pointing me to the website. I'm sure it'll be useful.
Raymond Julian
Kettle River, MN
The things we admire in men, kindness and generosity, openness, honesty,
understanding and feeling are the concomitants of failure in our system.
And those traits we detest, sharpness,
On Fri, 4 Jul 2014 19:45:31 -0500, you wrote:
That would be large enough to have some physical instability at high speed.
You could also have room to put a number of pickups around it and gain
resolution by reading them sequentially.
I have an encoder disk made of tufnel on my lathe - it's
On 4 Jul 2014, at 02:28, Jon Elson wrote:
On 07/03/2014 04:18 PM, Gene Heskett wrote:
But it occurs to me that this code is dig cutting, meaning the bit as it
dulls, will skid rather than shave at first contact and be pushed farther
and farther off the line until it snaps.
I have been
On Friday 04 July 2014 03:08:45 Marcus Bowman did opine
And Gene did reply:
On 4 Jul 2014, at 02:28, Jon Elson wrote:
On 07/03/2014 04:18 PM, Gene Heskett wrote:
But it occurs to me that this code is dig cutting, meaning the bit
as it dulls, will skid rather than shave at first contact and
Gene,
If you plan the scale to collect the data to compensate the ballscrew then
the .0004 scale is fine to obtain a pretty accurate positioning and
repeatable machine.
I use climb milling for most everything except finish passes on steel. You
will find the multitude of variables in the process
I tend to use single flute router cutters for what you describe. Reverse
helix will cause the cutters to push the material down rather than puck it
up into the cutter and break it.
On Jul 4, 2014 7:33 AM, Gene Heskett ghesk...@wdtv.com wrote:
On Friday 04 July 2014 03:08:45 Marcus Bowman did
On Friday 04 July 2014 09:24:19 Stuart Stevenson did opine
And Gene did reply:
Gene,
If you plan the scale to collect the data to compensate the ballscrew
then the .0004 scale is fine to obtain a pretty accurate positioning
and repeatable machine.
I just changed a boatload of -+ signs around
Quoth Marcus Bowman.
See the photo currently at
www.cncintheworkshop.com/Welcome.html
That's a nice bit of work. A set of yokes for my Harris are in my queue
of 'jobs to be done at some point' and I'd love to know the cutting and
clamping sequence you went through to end up with the yoke
On Friday 04 July 2014 09:30:02 Stuart Stevenson did opine
And Gene did reply:
I tend to use single flute router cutters for what you describe.
Reverse helix will cause the cutters to push the material down rather
than puck it up into the cutter and break it.
Humm, The place where I've
On 07/04/2014 12:24 AM, Gene Heskett wrote:
I've broken several of those 1/32 SC mills, trying to cut deeper than 1.5
thou per pass and faster than 2.5 ipm. Brass sheet (door kick panel from
ACE Hdwe) is 1/32 thick so I'm doing 25 passes to get 45 thou down in case
Hmmm, I'd think the
On Friday 04 July 2014 11:43:41 Jon Elson did opine
And Gene did reply:
On 07/04/2014 12:24 AM, Gene Heskett wrote:
I've broken several of those 1/32 SC mills, trying to cut deeper than
1.5 thou per pass and faster than 2.5 ipm. Brass sheet (door kick
panel from ACE Hdwe) is 1/32 thick so
On 07/04/2014 01:04 PM, Gene Heskett wrote:
I usually blow it clear about once a minute. My air compressor is
outside, sitting under the eave of the building with a tarp on top, plus
half a sheet of that orange ply used for sheathing to help direct wind
driven rain away. To run a steady
On Friday 04 July 2014 14:36:44 Jon Elson did opine
And Gene did reply:
On 07/04/2014 01:04 PM, Gene Heskett wrote:
I usually blow it clear about once a minute. My air compressor is
outside, sitting under the eave of the building with a tarp on top,
plus half a sheet of that orange ply
Gene,
This is a little off the thread but you might want to consider using
one of the black dummy CD's or DVD's that come in a stack of new
discs for your encoder disk.
I used one of them for the spindle encoder for both the 9 inch
grizzly and the Monarch 10EE. The disks are about the right
That would be large enough to have some physical instability at high speed.
You could also have room to put a number of pickups around it and gain
resolution by reading them sequentially.
On Jul 4, 2014 7:39 PM, Cecil Thomas wctho...@chartertn.net wrote:
Gene,
This is a little off the thread
I can't get more than 4k rpms from either of my lathes and I have not
had a stability problem at those speeds. I would have to do a little
testing to see if I would go higher (if I had a machine that could do it).
The size is easily adjusted. I cut mine on my cnc rotary table on my
Millright.
On Friday 04 July 2014 20:21:22 Cecil Thomas did opine
And Gene did reply:
Gene,
This is a little off the thread
Not IMO. ;-)
but you might want to consider using
one of the black dummy CD's or DVD's that come in a stack of new
discs for your encoder disk.
I used one of them for the
Greetings all,
Slightly off topic, but while everyone is thinking about technique I was
wondering where I might find a reference for techniques. Something that
talks about the things that have been discussed here. When to
climb/conventional, number and angle of flutes, plow v rough v finish,
On 5 July 2014 03:06, rayj raymo...@frontiernet.net wrote:
Slightly off topic, but while everyone is thinking about technique I was
wondering where I might find a reference for techniques.
Not an exact reply to the question asked, but
http://zero-divide.net/?page=fswizard
Has a large database
Greetings;
I'm in the process of making yet another encoder disk for the lathe as I
fine tune the code to get the correct width(duty cycle) of the slots, and
making the center hole a couple thou bigger as it turns out the high spot
corresponds to the peak of the thread where it is sitting on
On 07/03/2014 04:18 PM, Gene Heskett wrote:
But it occurs to me that this code is dig cutting, meaning the bit as it
dulls, will skid rather than shave at first contact and be pushed farther
and farther off the line until it snaps.
I have been climb milling since 1997, when I got ballscrews
On Thursday 03 July 2014 21:28:00 Jon Elson did opine
And Gene did reply:
On 07/03/2014 04:18 PM, Gene Heskett wrote:
But it occurs to me that this code is dig cutting, meaning the bit as
it dulls, will skid rather than shave at first contact and be pushed
farther and farther off the line
On 07/03/2014 09:27 PM, Gene Heskett wrote:
believe I need to figure out a way to certify its accuracy
as g2 cut circles seem to have anywhere up to 3 thou,
perhaps a bit more of almost random edge wibbles.
Difficult when the only dial indicators I have are a 1
travel, .001 scale, and one
On Friday 04 July 2014 00:28:07 Jon Elson did opine
And Gene did reply:
On 07/03/2014 09:27 PM, Gene Heskett wrote:
believe I need to figure out a way to certify its accuracy
as g2 cut circles seem to have anywhere up to 3 thou,
perhaps a bit more of almost random edge wibbles.
Difficult
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