On 30 October 2012 06:26, Sebastian Kuzminsky wrote:
> Bone headed error... I am doing a small production run, using three
> different drills, each mounted in its own tool holder. I had carefully
> measured the length of each tool and recorded them all in the tool
> table. I had run about 10 p
On 31 October 2012 14:02, Stuart Stevenson wrote:
> I have tried hydraulic chucks end mill holders.
How do they work? I had imgined that they were based on the SKF
Oil-injection idea
( http://www.mapro.skf.com/products/oil_oim.htm ) but looking around
the web it appears that they may simply have
On Wed, 31 Oct 2012 14:42:38 +, you wrote:
>On 31 October 2012 14:01, Erik Christiansen wrote:
>
>> ER40 130 ft-lbs according to
>>
>>
>> http://blog.cnccookbook.com/2010/09/28/getting-the-best-performance-from-er-collet-chucks/
>>
>> The wrench supplied with my ER40 collet chuck is 11"
On Wed, Oct 31, 2012 at 12:48 PM, MC Cason wrote:
> On 10/31/2012 11:56 AM, Kirk Wallace wrote: Why all the fancy ways to
> torque a nut?
>
HEH - because we can :)
--
dos centavos
--
Everyone hates slow websites.
On 10/31/2012 11:56 AM, Kirk Wallace wrote:
> On Wed, 2012-10-31 at 16:45 +, andy pugh wrote:
>> On 31 October 2012 16:35, sam sokolik wrote:
>>
>> http://electronicsam.com/images/KandT/wrenchscale.JPG
>>
>>
>> Add strain gauges and an Arduino with LCD display in the middle and
>> you can
>> r
On Wed, 2012-10-31 at 16:45 +, andy pugh wrote:
> On 31 October 2012 16:35, sam sokolik wrote:
>
> http://electronicsam.com/images/KandT/wrenchscale.JPG
>
>
> Add strain gauges and an Arduino with LCD display in the middle and
> you can
> read out torque directly...
>
Howsbout:
http://www
On 31 October 2012 16:35, sam sokolik wrote:
http://electronicsam.com/images/KandT/wrenchscale.JPG
Add strain gauges and an Arduino with LCD display in the middle and you can
read out torque directly...
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
we just made our own...
http://electronicsam.com/images/KandT/wrench.JPG
http://electronicsam.com/images/KandT/wrenchscale.JPG
sam
On 10/31/2012 10:47 AM, dave wrote:
> On Wed, 2012-10-31 at 11:18 +, andy pugh wrote:
>> On 31 October 2012 10:59, John Thornton wrote:
>>> Yes, I emailed Fr
On Wed, 2012-10-31 at 11:18 +, andy pugh wrote:
> On 31 October 2012 10:59, John Thornton wrote:
> > Yes, I emailed Frank at Maritool and he sent me the torque specs for the
> > ER collets.
> >
> > ER 11 20 ft-lbs
> > ER 16 35 ft-lbs
> > ER 25 60 ft-lbs
> > ER 32 90 ft-lbs
>
> Which i
On Wednesday 31 October 2012 11:28:22 andy pugh did opine:
> On 31 October 2012 10:59, John Thornton wrote:
> > Yes, I emailed Frank at Maritool and he sent me the torque specs for
> > the ER collets.
> >
> > ER 11 20 ft-lbs
> > ER 16 35 ft-lbs
> > ER 25 60 ft-lbs
> > ER 32 90 ft-lbs
>
mdf being the key word there is no long grain structure to pull the
tool with i would have to say aluminum or lead is the worst about
pulling but i doubt many are milling lead . also you cannot use high
speed toolpaths with lead as it will smear
--
jeremy youngs
--
That's odd we are milling all the time at 18K RPM with 200-400ipm with half and
3/4" collets without any problems. (We are cutting wood and MDF.) I have had a
lot more problem with 1/4" collets and tools pulling out than with the bigger
ones. I have never had a 3/4" tool pull out, half inch in
On 31 October 2012 14:01, Erik Christiansen wrote:
> ER40 130 ft-lbs according to
>
>
> http://blog.cnccookbook.com/2010/09/28/getting-the-best-performance-from-er-collet-chucks/
>
> The wrench supplied with my ER40 collet chuck is 11" long. I'm not sure
> I can comfortably put 140 lbs of fo
On 31 October 2012 14:02, Stuart Stevenson wrote:
> another way
> http://www.youtube.com/watch?v=W0SX52R-MvY
>
> I have not tried the tribos in the video. I almost tried it.
It seems like you could make your own by over-tightening a three-jaw chuck
before boring the hole :-)
--
atp
If you can
another way
http://www.youtube.com/watch?v=W0SX52R-MvY
I have tried hydraulic chucks end mill holders. We have a few in the unused
tool holder pile. End mills pulled out of them during the cut. The finish
was not as good as a regular end mill holder.
I have not tried shrink fit.
I have not tried
On 31.10.12 05:59, John Thornton wrote:
> Yes, I emailed Frank at Maritool and he sent me the torque specs for the
> ER collets.
>
> ER 11 20 ft-lbs
> ER 16 35 ft-lbs
> ER 25 60 ft-lbs
> ER 32 90 ft-lbs
ER40 130 ft-lbs according to
http://blog.cnccookbook.com/2010/09/28/getting-
-Collet/product_info.html
-- Ralph
From: andy pugh [bodge...@gmail.com]
Sent: Wednesday, October 31, 2012 5:31 AM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] I crashed my machine, now I need a new drill chuck
On 31 October 2012 11:44
On 31 October 2012 11:44, John Thornton wrote:
> I guess if your machining at 10,000rpm with aggressive feed rates maybe
> collets are not the answer... I would assume you would use shrink fit
> tooling for something like tha
I thought that, and when I googled yesterday to find out if "Shrink
fi
On 10/31/2012 07:18 AM, andy pugh wrote:
>> ER 11 20 ft-lbs
>> ER 16 35 ft-lbs
>> ER 25 60 ft-lbs
>> ER 32 90 ft-lbs
> Which is all very well, but has anyone ever seen a torque-wrench
> fitting that can operate a collet nut?
When I saw the ER collet holder torque list, I interpolated to
Frank said the collet wrench length for each size should provide the
approximate torque needed. I tested the smaller ones I have < ER20 which
use a hex nut and the wrench is close.
I guess if your machining at 10,000rpm with aggressive feed rates maybe
collets are not the answer... I would assu
On 31 October 2012 10:59, John Thornton wrote:
> Yes, I emailed Frank at Maritool and he sent me the torque specs for the
> ER collets.
>
> ER 11 20 ft-lbs
> ER 16 35 ft-lbs
> ER 25 60 ft-lbs
> ER 32 90 ft-lbs
Which is all very well, but has anyone ever seen a torque-wrench
fitting that c
Yes, I emailed Frank at Maritool and he sent me the torque specs for the
ER collets.
ER 11 20 ft-lbs
ER 16 35 ft-lbs
ER 25 60 ft-lbs
ER 32 90 ft-lbs
John
On 10/30/2012 7:33 PM, Sam wrote:
> you just need to tighten them correctly. Has anyone actually looked up the
> torque tightening
On Tue, 30 Oct 2012 13:35:35 -0400, you wrote:
>be wary of milling with a collet, any serious cuts will tend to pull
>the endmill out ouf the collet. my position is i dont put an endmill
>larger than 3/8 in a collet they are for drills and reamers. otherwise
>a very good solution
Depends on the c
ok some valid points yes an end mill holder is a hole with a set
screw in it. my night job is supervising 25 people and writing
programs. I use very high speed machining techniques . I promise that
if you spin an endmill in a collet half inch or larger at 10 k rpm and
feed it 2-300 in a min you wi
Big difference between an R8/5C collet and, say, an ER/TG/DA collet in
terms of grip force / mechanical advantage when they are properly
torqued. I used to have a handy chart comparing them but can't find
it.
> On 10/30/2012 12:35 PM, jeremy youngs wrote:
>> be wary of milling with a collet, any
you just need to tighten them correctly. Has anyone actually looked up the
torque tightening specs on collets? I think you would be surprised we
have collets into the 1.5 to 2 inch range. I don't ever remember any pulling
out.
John Thornton wrote:
>I use collets up to 3/4" with heavy
I use collets up to 3/4" with heavy cuts and huge fly cutters with no
problem. Collets are for milling too.
John
On 10/30/2012 12:35 PM, jeremy youngs wrote:
> be wary of milling with a collet, any serious cuts will tend to pull
> the endmill out ouf the collet. my position is i dont put an endm
On Tue, 2012-10-30 at 16:27 -0400, John Stewart wrote:
> Jeremy;
>
> > an endmill holder of course!!! thats what they are for.
>
> If you mean the ones with the screws on the side for weldon-shanked end
> mills, they have other issues.
>
> By definition, the holes in these holders are larger t
Jeremy;
> an endmill holder of course!!! thats what they are for.
If you mean the ones with the screws on the side for weldon-shanked end mills,
they have other issues.
By definition, the holes in these holders are larger than the end mill shank.
(otherwise you'd never get the end mill in)
On 30 October 2012 18:15, jeremy youngs wrote:
> an endmill holder of course!!! thats what they are for.
I confess I am not entirely sure what you mean by that term. (I am not
actually a machinist)
Are you referring to the ones with a screw in the side? Or something
more exotic like Shrink-fit?
thats pretty neat
On Tue, Oct 30, 2012 at 2:21 PM, Eric Keller wrote:
> On Tue, Oct 30, 2012 at 1:42 PM, jeremy youngs wrote:
>
>> so how do you put ane endmill in them?
>>
>
> The endmill holder is a captured plug that slides out radially to put the
> endmill in, and then is held in place by th
On Tue, Oct 30, 2012 at 1:42 PM, jeremy youngs wrote:
> so how do you put ane endmill in them?
>
The endmill holder is a captured plug that slides out radially to put the
endmill in, and then is held in place by the collet chuck. So you have to
take the collet out of the chuck to change endmil
an endmill holder of course!!! thats what they are for. I am not a
conservative programmer and its really about cubic inches per hour :)
but experience has shown that any larger than 3/8 is asking for
trouble ( ive found said trouble once or twice :))
On Tue, Oct 30, 2012 at 2:09 PM, andy pugh wr
On 30 October 2012 17:35, jeremy youngs wrote:
> be wary of milling with a collet, any serious cuts will tend to pull
> the endmill out ouf the collet. my position is i dont put an endmill
> larger than 3/8 in a collet
So what _do_ you use?
--
atp
If you can't fix it, you don't own it.
http://w
so how do you put ane endmill in them?
On Tue, Oct 30, 2012 at 1:39 PM, Eric Keller wrote:
> On Tue, Oct 30, 2012 at 1:35 PM, jeremy youngs wrote:
>
>> be wary of milling with a collet, any serious cuts will tend to pull
>> the endmill out ouf the collet. my position is i dont put an endmill
>>
On Tue, Oct 30, 2012 at 1:35 PM, jeremy youngs wrote:
> be wary of milling with a collet, any serious cuts will tend to pull
> the endmill out ouf the collet. my position is i dont put an endmill
> larger than 3/8 in a collet they are for drills and reamers. otherwise
> a very good solution
> --
be wary of milling with a collet, any serious cuts will tend to pull
the endmill out ouf the collet. my position is i dont put an endmill
larger than 3/8 in a collet they are for drills and reamers. otherwise
a very good solution
--
jeremy youngs
--
On 10/30/2012 11:54 AM, John Stewart wrote:
> I DO LIKE the idea of the Tormach Tooling System
I just received my YinSheng Manufacturing ER-20 collet holders. They
have a .750" shaft on the top and the TTS style ring with rebated top to
Z locate on the bottom of the spindle. Essentially, this
Your experience makes me want to measure the runout on my jacobs taper
toolholders. I am very well tooled up with collets and holders, so
generally I don't see much reason to use a chuck. However, it can be
handy, no doubt
On Tue, Oct 30, 2012 at 1:05 PM, Sebastian Kuzminsky wrote:
> I'm orderi
I'm ordering this one:
http://www.use-enco.com/CGI/INSRIT?PARTPG=INLMKD&PMPXNO=19506526&PMAKA=319-3121
It's slightly shorter and slightly less expensive than the similar Rohm.
Thanks for all the advise.
--
Sebastian Kuzminsky
--
Sebastian Kuzminsky wrote:
> I got it off the J6 tool holder, and the J6 taper on the tool holder has
> ~0.001 inches of runout now (measured with a DTI on the taper, while
> mounted in the spindle and turning slowly). I don't know what the
> runout was before the crash, and I don't know what's
Hi all;
Just for the record, on my "KX1-NU" mill, I use ER-16 collets.
I made the MT2 adapter, and got a smaller nut from Maritool.
So far, despite having about 20 things I can stick in it's MT2 taper, I have
not removed the ER-16 holder since it was installed.
I DO LIKE the idea of the Tormac
On Tuesday 30 October 2012 11:18:04 andy pugh did opine:
> On 30 October 2012 14:58, Gene Heskett wrote:
> > Can I also buy a #2 morse
> >
> > to ER11 adapter from them? I am not exactly z challenged with my z
> > drive
>
> http://www.ctctools.biz/servlet/the-21/ER11-MT2-MK2-COLLET/Detail
>
On Tuesday 30 October 2012 10:59:26 John Thornton did opine:
> ER8 collets go down to 0.039" but that only makes it down to #61
> drill... darn it. I do have one of those pin vise things that mount in a
> collet and will hold a #80 bit but it is a cheap one. Are you drilling
> by hand with the #72
On 30 October 2012 14:58, Gene Heskett wrote:
> Can I also buy a #2 morse
> to ER11 adapter from them? I am not exactly z challenged with my z drive
http://www.ctctools.biz/servlet/the-21/ER11-MT2-MK2-COLLET/Detail
Or possibly a straight-shank one in a chuck:
http://www.ctctools.biz/servlet/t
On 30 October 2012 14:52, John Thornton wrote:
> ER8 collets go down to 0.039" but that only makes it down to #61
> drill... darn it.
Don't forget the 0.5mm (0.02") adjustment range.
The CTC metric ER11spec says they can grip down to 3/128"
--
atp
If you can't fix it, you don't own it.
http://w
On Tuesday 30 October 2012 10:55:53 andy pugh did opine:
> On 30 October 2012 14:17, Gene Heskett wrote:
> > I'm sure they are, and that is a good price, but they don't go small
> > enough at a 2mm minimum.
>
> Well, you wouldn't use ER32 for 2mm.
> Perhaps ER11? Cheaper, too:
> http://www.ctcto
On Tuesday 30 October 2012 10:51:44 Ed Nisley did opine:
> On 10/30/2012 10:12 AM, Gene Heskett wrote:
> > anyone who will sell me carbide #68's in ten packs w/o a 3 digit price
> > yet
>
> eBay is my parts & tool locker:
>
> http://www.ebay.com/itm/New-10pcs-68-Wire-Size-Solid-Carbide-PCB-Print
ER8 collets go down to 0.039" but that only makes it down to #61
drill... darn it. I do have one of those pin vise things that mount in a
collet and will hold a #80 bit but it is a cheap one. Are you drilling
by hand with the #72 bit?
John
On 10/30/2012 9:12 AM, Gene Heskett wrote:
> On Tuesd
On 30 October 2012 14:17, Gene Heskett wrote:
> I'm sure they are, and that is a good price, but they don't go small enough
> at a 2mm minimum.
Well, you wouldn't use ER32 for 2mm.
Perhaps ER11? Cheaper, too:
http://www.ctctools.biz/servlet/the-13/FULL-ER11-COLLET-SET/Detail
(By the way, I have
On 10/30/2012 10:12 AM, Gene Heskett wrote:
> anyone who will sell me carbide #68's in ten packs w/o a 3 digit price yet
eBay is my parts & tool locker:
http://www.ebay.com/itm/New-10pcs-68-Wire-Size-Solid-Carbide-PCB-Print-Circuit-Board-Drill-Bits-/120995129465?pt=LH_DefaultDomain_0&hash=item1c2
On Tuesday 30 October 2012 10:15:13 andy pugh did opine:
> On 30 October 2012 12:42, John Thornton wrote:
> > at $200 for a set of collets it will be out of the range of many home
> > shop machinists.
>
> You can pay a lot less that that.
> http://www.ctctools.biz/servlet/the-18/FULL-ER32-COLL
On Tuesday 30 October 2012 09:50:06 John Thornton did opine:
> Another reason is collet holders are much shorter than a drill chuck and
> on Z challenged machines like my BP switching between an end mill holder
> an a drill chuck is not always a practical thing... but at $200 for a
> set of collet
On 30.10.12 07:42, John Thornton wrote:
> Another reason is collet holders are much shorter than a drill chuck and
> on Z challenged machines like my BP switching between an end mill holder
> an a drill chuck is not always a practical thing... but at $200 for a
> set of collets it will be out of
On 30 October 2012 12:42, John Thornton wrote:
> at $200 for a set of collets it will be out of the range of many home shop
> machinists.
You can pay a lot less that that.
http://www.ctctools.biz/servlet/the-18/FULL-ER32-COLLET-SET/Detail
I am sure that they are at least adequate for drill hold
On 30 October 2012 12:31, Erik Christiansen wrote:
> I'd hate to buy a collet for every drill size I might use.
A metric set of ER collets fits every possible size in the range. I
believe there are a couple of gaps in the Imperial range.
I think that "ER" stands for something like "extended rang
Another reason is collet holders are much shorter than a drill chuck and
on Z challenged machines like my BP switching between an end mill holder
an a drill chuck is not always a practical thing... but at $200 for a
set of collets it will be out of the range of many home shop machinists.
I do h
On 30.10.12 06:15, John Thornton wrote:
> I don't use a drill chuck on any of my mills, I've been told ER collets
> are much better and that is what I use.
Can't disagree a lot, for milling, anyway. IIRC, it was in a Tormach
document that I read a note similar to this:
Drill Chucks:
Using a d
On 10/29/2012 11:26 PM, Sebastian Kuzminsky wrote:
> Bone headed error... I am doing a small production run, using three
> different drills, each mounted in its own tool holder. I had carefully
> measured the length of each tool and recorded them all in the tool
> table. I had run about 10 parts
I don't use a drill chuck on any of my mills, I've been told ER collets
are much better and that is what I use. A little googling and it looks
like the NMBT30 can be modified to fit the QC30 with the only difference
between the 30's is the flange and drive lugs.
http://www.tools-n-gizmos.com/sp
What a weird coincidence! I'm finally getting around to a CNC retrofit
of my milling machine and after buying some nice R8 tooling for manual
machining, I decided to go with the Tormach Tooling System for the CNC
upgrade. In theory, I can swap the TTS collet out and use my R8 tooling
as easil
normally i use a keyless for the conenience of mounting an indicator
and dont use it for machining . i prefe collets to hold my drills.
.001 is ok if you are not using less than 1/8 drills not ideal but if
you cannot readily replace the holder i wouldnt just pitch it . a
collet holder will also he
Bone headed error... I am doing a small production run, using three
different drills, each mounted in its own tool holder. I had carefully
measured the length of each tool and recorded them all in the tool
table. I had run about 10 parts, everything was going great, just a few
left to go.
T
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