Re: [Emc-users] Question on screw machining

2014-05-04 Thread Steve Blackmore
On Sat, 3 May 2014 01:14:36 +0100, you wrote: On 3 May 2014 00:53, Gene Heskett ghesk...@wdtv.com wrote: But in grinding them down, its obvious I wall NOT have a good shoulder because the 8mm is just about the bottoms of the ball grooves. Rather than grinding, consider trying a CBN insert,

Re: [Emc-users] Question on screw machining

2014-05-04 Thread Gene Heskett
On Sunday 04 May 2014 04:59:17 Steve Blackmore did opine: On Sat, 3 May 2014 01:14:36 +0100, you wrote: On 3 May 2014 00:53, Gene Heskett ghesk...@wdtv.com wrote: But in grinding them down, its obvious I wall NOT have a good shoulder because the 8mm is just about the bottoms of the ball

Re: [Emc-users] Cutting threads on these screw?

2014-05-04 Thread Steve Blackmore
On Sat, 3 May 2014 23:11:32 -0400, you wrote: Greetings; In getting the end of the screw down to fit in an 8mm hole, the bearing boss, I have about 2 thou of the bottom of the original ball groove left. I am thinking that means its still harder that the hubs of ---. Correct? I haven't

Re: [Emc-users] Question on screw machining

2014-05-04 Thread Mark Wendt
On Sat, May 3, 2014 at 3:33 PM, andy pugh bodge...@gmail.com wrote: On 3 May 2014 13:53, Gene Heskett ghesk...@wdtv.com wrote: Looks good Andy, but the 9x looks as if it has 3x the room to do it in. The gibs on the 7 are maybe 4mm thick, total. 3 hex head holdup bolts, 2 jack screws

Re: [Emc-users] Cutting threads on these screw?

2014-05-04 Thread Gene Heskett
On Sunday 04 May 2014 08:17:02 Steve Blackmore did opine: On Sat, 3 May 2014 23:11:32 -0400, you wrote: Greetings; In getting the end of the screw down to fit in an 8mm hole, the bearing boss, I have about 2 thou of the bottom of the original ball groove left. I am thinking that means its

Re: [Emc-users] center finder camera

2014-05-04 Thread Bari
I'm using cameras and microscopes with Linuxcnc for vision based feature and defect detection. I'll try to update Camview and Camunits to easily work with Linuxcnc for edge detection, vision based homing, center finding, etc etc. These were taken with a Logitech C270 ~$30-40 permanently

[Emc-users] Newbe getting started

2014-05-04 Thread rayj
Greetings, I'm close to having my hardware setup and need to start studying LCNC. Where should I start reading? What branch, thread, or version should I look at to get up and running as simply as possible. I'm running from a parallel port to a 4 axis set of controllers, but only have 3

Re: [Emc-users] center finder camera

2014-05-04 Thread Jon Elson
On 05/04/2014 10:55 AM, Bari wrote: I'm using cameras and microscopes with Linuxcnc for vision based feature and defect detection. I'll try to update Camview and Camunits to easily work with Linuxcnc for edge detection, vision based homing, center finding, etc etc. These were taken with a

Re: [Emc-users] Newbe getting started

2014-05-04 Thread andy pugh
On 5 May 2014 00:09, rayj raymo...@frontiernet.net wrote: Where should I start reading? What branch, thread, or version should I look at to get up and running as simply as possible. Maybe start here: http://www.linuxcnc.org/docs/html/common/user_intro.html I'm running from a parallel port

Re: [Emc-users] center finder camera

2014-05-04 Thread Bari
On 05/04/2014 06:19 PM, Jon Elson wrote: PCB Traces http://imagebin.org/308970 Those clearly are not good enough for sub-.001 edge finding. Those were taken at 2 different distances. The second one (at the link above) is good enough, but I'm not sure how sub 25um you want to go. I have one

Re: [Emc-users] Newbe getting started

2014-05-04 Thread Stuart Stevenson
On May 4, 2014 6:38 PM, andy pugh bodge...@gmail.com wrote: On 5 May 2014 00:09, rayj raymo...@frontiernet.net wrote: Where should I start reading? What branch, thread, or version should I look at to get up and running as simply as possible. Maybe start here:

Re: [Emc-users] center finder camera

2014-05-04 Thread Jon Elson
On 05/04/2014 06:50 PM, Bari wrote: http://imagebin.org/309060 Taken of a 6 mil pcb trace with the VGA res microscope that you're waiting for. And that one looks pretty good. I'll have to see how good a picture it gives of the typical edge of a machined part, with possibly too much contrast

Re: [Emc-users] center finder camera

2014-05-04 Thread Bari
On 05/04/2014 09:51 PM, Jon Elson wrote: And that one looks pretty good. I'll have to see how good a picture it gives of the typical edge of a machined part, with possibly too much contrast to display perfectly. But, this could well do as good a job as a typical cheap edge finder. That

[Emc-users] Question re crooked headstock

2014-05-04 Thread Gene Heskett
Greetings all; Today, after fighting with it yesterday and putting in nearly 10 thou of x taper in 2.25 of Z travel before I got anywhere near a straight turn, using a dremel 1.5 diamond wheel for a cutting tool, then I wrote a similar bit of code to turn the end of the shaft down to 6.35mm,

Re: [Emc-users] center finder camera

2014-05-04 Thread Steve Blackmore
On Sun, 04 May 2014 18:19:14 -0500, you wrote: Those images are not real close-up either, but Steve Blackmore seems to indicate it will focus a lot closer. I'll see when mine comes in. Jon - http://imagebin.org/309092 Tip of camera just touching surface. That's a 0.1mm gap set on the jaws of

Re: [Emc-users] Question re crooked headstock

2014-05-04 Thread Gregg Eshelman
On 5/4/2014 9:14 PM, Gene Heskett wrote: Greetings all; Today, after fighting with it yesterday and putting in nearly 10 thou of x taper in 2.25 of Z travel before I got anywhere near a straight turn, using a dremel 1.5 diamond wheel for a cutting tool, then I wrote a similar bit of code to

Re: [Emc-users] Question on screw machining

2014-05-04 Thread Steve Blackmore
On Sun, 4 May 2014 05:05:53 -0400, you wrote: That sounds as if I ought to be able to cut a thread with a single tooth carbide insertable, indexable tool then. Yes - no problem, I have two holders permanently set up, one has a 60 deg ISO insert, the other a 55 degree single point insert. IF

Re: [Emc-users] Cutting threads on these screw?

2014-05-04 Thread Steve Blackmore
On Sun, 4 May 2014 08:52:26 -0400, you wrote: The first one resembles the anchoring for the 16mm5 screw used as the Z on the lathe, 12mm bore and I had yet to get all the end play out of it even though I have extra shims between the bearings outer races. Poorly made, so I still have about

Re: [Emc-users] Question re crooked headstock

2014-05-04 Thread Gene Heskett
On Monday 05 May 2014 00:47:34 Gregg Eshelman did opine: On 5/4/2014 9:14 PM, Gene Heskett wrote: Greetings all; Today, after fighting with it yesterday and putting in nearly 10 thou of x taper in 2.25 of Z travel before I got anywhere near a straight turn, using a dremel 1.5 diamond

Re: [Emc-users] Question re crooked headstock

2014-05-04 Thread Steve Blackmore
On Sun, 4 May 2014 23:14:51 -0400, you wrote: Greetings all; Today, after fighting with it yesterday and putting in nearly 10 thou of x taper in 2.25 of Z travel before I got anywhere near a straight turn Ideas? Read this http://easyweb.easynet.co.uk/~chrish/cancelled%20account/tsetup.htm

Re: [Emc-users] Newbe getting started

2014-05-04 Thread Viesturs Lācis
2014-05-05 2:09 GMT+03:00 rayj raymo...@frontiernet.net: Last question: What is the etiquette on this list for replies? Top, bottom, or inserted under the relevant paragraph? It is just that inserted or bottom replies make it easier to understand, what phrase/question exactly are you