On Wednesday 26 September 2018 14:06:36 Gene Heskett wrote:
[...[
> After this mornings work, the major remaining error is the nearly 4
> thou the z screw moves endways because of a poorly fitted thrust
> bearing. Thats too much backlash to correct with lcnc. And 3x the x
> backlash. Its a bear
On Wednesday 26 September 2018 16:17:15 andy pugh wrote:
> On Wed, 26 Sep 2018 at 15:08, Gene Heskett
wrote:
> > And the 2nd is axial alignment, combined with the beam spreading at
> > 30" out, gives a bar of light at full intensity that is around 2mm
> > wide by 4mm long, and describes a
On Wed, 26 Sep 2018 at 15:08, Gene Heskett wrote:
> And the 2nd is axial alignment, combined with the beam spreading at 30"
> out, gives a bar of light at full intensity that is around 2mm wide by
> 4mm long, and describes a nearly 10 mm diameter circle on the target as
> the spindle rotates.
I
The one I have was made by Avenger Products, model 21400. Uses G13A batteries.
The company appears to have been bought by Jewett-Cameron circa 2011 and this
particular product discontinued.
Web archive!
https://web.archive.org/web/*/http://www.avengerproducts.com:80/laser.asp
Focus is
On Wednesday 26 September 2018 10:59:34 Greg Bentzinger via Emc-users
wrote:
> Greg begin
>
> Am I going to be the 1st person to point out that the tailstock on
> most lathe designs does not use the same ways as the lathe carriage
> and therefore is not subject to the bed wear issue.
No that
Greg begin
Am I going to be the 1st person to point out that the tailstock on most lathe
designs does not use the same ways as the lathe carriage and therefore is not
subject to the bed wear issue. If the tailstock is out it is mal-adjusted or
the lathe is not leveled properly and you have
On Wednesday 26 September 2018 05:23:42 andy pugh wrote:
> On Wed, 26 Sep 2018 at 06:13, Chris Albertson
wrote:
> > On Tue, Sep 25, 2018 at 1:04 AM andy pugh wrote:
> > > I can't help thinking that the way to determine the amount of
> > > correction needed is to actually machine a test bar and
On Wed, 26 Sep 2018 at 06:13, Chris Albertson wrote:
>
> On Tue, Sep 25, 2018 at 1:04 AM andy pugh wrote:
>
> > I can't help thinking that the way to determine the amount of
> > correction needed is to actually machine a test bar and measure it.
> A laser beam is straighter than any bar. and
The V2 8 megapixel camera for Raspberry Pi uses the Sony IMX219 sensor which is
a bit over 5mm wide by a bit under 5mm tall. They call it 1/4" diagonal.
Should be able to hit that with a laser beam, if the pinhole lens can be
removed.
The first model Pi camera used the (since discontinued)
On Wednesday 26 September 2018 01:11:50 Chris Albertson wrote:
> On Tue, Sep 25, 2018 at 1:04 AM andy pugh wrote:
> > I can't help thinking that the way to determine the amount of
> > correction needed is to actually machine a test bar and measure it.
>
> A laser beam is straighter than any bar.
On Tue, Sep 25, 2018 at 1:04 AM andy pugh wrote:
> I can't help thinking that the way to determine the amount of
> correction needed is to actually machine a test bar and measure it.
>
A laser beam is straighter than any bar. and is quicker and costs less.
What you do is place a camera in the
On Tuesday 25 September 2018 18:18:06 jeremy youngs wrote:
> On Tue, Sep 25, 2018, 5:15 AM Gene Heskett gibs works great on TLM because
>
> > its carriage is so narrow its nigh impossible to use a qctp on it
> > and keep the point of the tool within the carriages footprint on the
> > bed. But I
On Tue, Sep 25, 2018, 5:15 AM Gene Heskett its carriage is so narrow its nigh impossible to use a qctp on it and
> keep the point of the tool within the carriages footprint on the bed.
> But I have a vivid memory of the difficulty in getting the brass,
> tapered gib dead straight with a file that
On Tuesday 25 September 2018 13:51:20 Les Newell wrote:
> Hi Gene,
>
> If I remember correctly the piece I used was only about 18" long but
> about 4" diameter. Delrin that size is pretty spendy. I just used what
> I had.
Thats why I started with the 22" piece of A2 .500".
But it did not turn
Hi Gene,
If I remember correctly the piece I used was only about 18" long but
about 4" diameter. Delrin that size is pretty spendy. I just used what I
had.
I was setting head alignment so I didn't need it to be that much longer.
If I can get the taper down to a gnat's over that distance I'm
On Tuesday 25 September 2018 12:10:54 andy pugh wrote:
> On Tue, 25 Sep 2018 at 16:56, Jon Elson wrote:
> > You can't turn between centers, or at least that adds a
> > whole new dimension to possible errors.
>
> That depends on the aim of the exercise. Is the aim to make straight
> parts or to
On Tuesday 25 September 2018 11:35:18 Jon Elson wrote:
> On 09/25/2018 03:02 AM, andy pugh wrote:
> > I can't help thinking that the way to determine the amount of
> > correction needed is to actually machine a test bar and measure it.
>
> The problem here is that deflection of the bar, and also
On Tuesday 25 September 2018 11:27:42 andy pugh wrote:
> On Tue, 25 Sep 2018 at 16:15, Bengt Sjölund wrote:
> > 6082 is a good candidate that machines well if you can get it to
> > fair price.
>
> 800mm (31") of 2.75" 6082 is < £50 on eBay.
> https://www.ebay.co.uk/itm/281404474552
And doesn't
On Tuesday 25 September 2018 10:56:44 Bengt Sjölund wrote:
> 6082 is a good candidate that machines well if you can get it to fair
> price.
>
6082 isn't available from onlinemetals.com. I haven't checked other
sources.
Thanks Bengt.
--
Cheers, Gene Heskett
--
"There are four boxes to be used
On Tuesday 25 September 2018 09:30:53 andy pugh wrote:
> On Tue, 25 Sep 2018 at 12:48, Les Newell
wrote:
> > That assumes your tailstock is dead nuts on. If not you're going to
> > be trying to compensate for a mix of tailstock + bed errors.
>
> Indeed. In fact the linear component of the error
On Tue, 25 Sep 2018 at 16:56, Jon Elson wrote:
> You can't turn between centers, or at least that adds a
> whole new dimension to possible errors.
That depends on the aim of the exercise. Is the aim to make straight
parts or to have a perfectly aligned lathe?
--
atp
"A motorcycle is a bicycle
On Tuesday 25 September 2018 07:46:44 Les Newell wrote:
> > I am talking in terms of a
> > light cut on a stiff aluminium bar between centres.
>
> That assumes your tailstock is dead nuts on. If not you're going to be
> trying to compensate for a mix of tailstock + bed errors. If you use
> the
On 09/25/2018 03:02 AM, andy pugh wrote:
I can't help thinking that the way to determine the amount of
correction needed is to actually machine a test bar and measure it.
The problem here is that deflection of the bar, and also the
lathe, will affect the accuracy of the result.
You can't turn
On Tue, 25 Sep 2018 at 16:15, Bengt Sjölund wrote:
>
> 6082 is a good candidate that machines well if you can get it to fair price.
800mm (31") of 2.75" 6082 is < £50 on eBay.
https://www.ebay.co.uk/itm/281404474552
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
6082 is a good candidate that machines well if you can get it to fair price.
Den 2018-09-25 kl. 16:51, skrev Gene Heskett:
On Tuesday 25 September 2018 07:19:12 andy pugh wrote:
On Tue, 25 Sep 2018 at 11:15, Gene Heskett
wrote:
This is also true. But that test bar costs money too.
It can
On Tuesday 25 September 2018 07:19:12 andy pugh wrote:
> On Tue, 25 Sep 2018 at 11:15, Gene Heskett
wrote:
> > This is also true. But that test bar costs money too.
>
> It can stay in stock as useful material. I am talking in terms of a
> light cut on a stiff aluminium bar between centres.
On Tue, 25 Sep 2018 at 12:48, Les Newell wrote:
> That assumes your tailstock is dead nuts on. If not you're going to be
> trying to compensate for a mix of tailstock + bed errors.
Indeed. In fact the linear component of the error will tell you how
far from the _bed_ axis the tailstock is.
A
I am talking in terms of a
light cut on a stiff aluminium bar between centres.
That assumes your tailstock is dead nuts on. If not you're going to be
trying to compensate for a mix of tailstock + bed errors. If you use the
bar unsupported there are flex issues. Having said that you always get
On Tue, 25 Sep 2018 at 11:15, Gene Heskett wrote:
> This is also true. But that test bar costs money too.
It can stay in stock as useful material. I am talking in terms of a
light cut on a stiff aluminium bar between centres.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and
On Tuesday 25 September 2018 04:02:01 andy pugh wrote:
> I can't help thinking that the way to determine the amount of
> correction needed is to actually machine a test bar and measure it.
This is also true. But that test bar costs money too. ATM, I am
considering a tapered gib setup on the
I can't help thinking that the way to determine the amount of
correction needed is to actually machine a test bar and measure it.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch,
RealD 3D glasses are
inexpensive.https://www.amazon.com/gp/offer-listing/B005Q3HFB8/ref=dp_olp_all_mbc?ie=UTF8=all
How they workHow RealD 3D Works
|
|
|
| | |
|
|
|
| |
How RealD 3D Works
Follow us at: RealD.com Twitter.com/RealD3D Facebook.com/RealD3D Instagram:
@RealD3D
|
|
Gene - Xray film exposed to light and processed makes for a very heavy filter.
Perhaps a single dental xray would provide enough material.
Also if you know anyone who processes there own 35mm. Pan X or Plus X and maybe
even Tri-X B film - the leader area will be fully blacked out.
Pan X would be
On Monday 24 September 2018 09:55:45 Les Newell wrote:
> Hi Gene,
>
> I'd take the lens off of the camera so the beam directly hits the
> sensor. The laser beam is co-linear so you don't need to focus it and
> a lens just introduces distortion. Everything else will just be an
> even colour
Hi Gene,
I'd take the lens off of the camera so the beam directly hits the
sensor. The laser beam is co-linear so you don't need to focus it and a
lens just introduces distortion. Everything else will just be an even
colour background so you should be able to fairly easily distinguish
On Sunday 23 September 2018 19:55:21 Gregg Eshelman via Emc-users wrote:
> A circular polarizing filter, like from a pair of RealD 3D movie
> glasses, seems to both dim and 'sharpen' a LASER beam somewhat. What
> it doesn't do is make the beam split into a row of dots like a linear
> polarizing
A circular polarizing filter, like from a pair of RealD 3D movie glasses, seems
to both dim and 'sharpen' a LASER beam somewhat. What it doesn't do is make the
beam split into a row of dots like a linear polarizing filter does.
___
Emc-users mailing
Greetings all;
I seem to have carved, polished whatever, that mt5 to 5c adaptor pretty
much in error, despite my last attempt to reduce the small end of it to
fit the spindle taper, its still at least 10 thou small at the shoulder,
and I am running out of shoulder as I keep pushing it to try
38 matches
Mail list logo
