Re: [Emc-users] joint

2014-07-21 Thread a k
i found this http://www.smithy.com/cnc-reference-info/chapter-5/m52/page/7 to stop m52 p1 is m53 On Sun, Jul 20, 2014 at 8:47 PM, a k pccncmach...@gmail.com wrote: Hi i did change direction on which motor move - by adding - at front input_scale and output_scale. now i move axis away from

Re: [Emc-users] OT: Mill Vise Advise

2014-07-21 Thread Steve Blackmore
On Sun, 20 Jul 2014 18:07:33 -0700, you wrote: I have a couple of 6 mill vises that came with used mills. They are pretty well worn, but not as bad as this one: http://www.ebay.com/itm/181467659964 It seems to me they could be disassembled and surface re-ground and be as good as new. Has

Re: [Emc-users] OT: Anyone Have Code to Print This?

2014-07-21 Thread Marius Liebenberg
And the sad thing is that we are loosing those kind of craftsmen at an alarming rate. The young ones dont want to be tough hand skills any more. You cant blame them because on a day to day basis, one cannot provide enough income to survive just on hand skills. The market is just to fast and

Re: [Emc-users] OT: Anyone Have Code to Print This?

2014-07-21 Thread Gregg Eshelman
On 7/20/2014 3:39 PM, Przemek Klosowski wrote: The trick with rocket engines is to prevent them from burning themselves up while burning the maximum amount of fuel. Therefore, it's a complicated fluid dynamics/thermal management problem, with fuel lines cooling the combustion/expansion

Re: [Emc-users] OT: Mill Vise Advise

2014-07-21 Thread andy pugh
On 21 July 2014 07:33, Steve Blackmore st...@pilotltd.net wrote: Mill them. An insert face and side mill will give a really good finish and good enough for a machine vice. If you mill them in-situ then they will be perfectly square and true too. Until you move them. -- atp If you can't fix

Re: [Emc-users] OT: Mill Vise Advise

2014-07-21 Thread Marius Liebenberg
I saw a clever plan once where the guy attached a square piece of steel to the bottom of the vise. The steel fits the table T slot precisely. He then lined the vise up and tightened the piece of steel in place. This way you can remove the vise and replace it ti the same alignment every time.

Re: [Emc-users] joint

2014-07-21 Thread John Thornton
I'm always amazed that people will read documents for other things and expect them to apply to LinuxCNC... Try reading the LinuxCNC docs. Here is the link http://linuxcnc.org/docs/html/ JT On 7/21/2014 12:59 AM, a k wrote: i found this

Re: [Emc-users] OT: Mill Vise Advise

2014-07-21 Thread andy pugh
On 21 July 2014 12:06, Marius Liebenberg mar...@mastercut.co.za wrote: I saw a clever plan once where the guy attached a square piece of steel to the bottom of the vise. The steel fits the table T slot precisely. I keep meaning to fit a key to the bottom of my vice. Or alternatively, something

Re: [Emc-users] OT: Mill Vise Advise

2014-07-21 Thread Stephen Dubovsky
All Kurt vises are keyed on the bottom. They even sell the keys in different stepped widths IIRC. My import vises are also keyed the same (but included the keys and have to be ground down if you have something other than a bridgeport sized slot.) So maybe the guy wasn't so clever;) They do

Re: [Emc-users] joint

2014-07-21 Thread andy pugh
On 21 July 2014 12:19, John Thornton bjt...@gmail.com wrote: I'm always amazed that people will read documents for other things and expect them to apply to LinuxCNC... I am fairly sure that Smithy will be quoting LinuxCNC behaviour, but I agree it is not the obvious place to look. Try reading

Re: [Emc-users] OT: Mill Vise Advise

2014-07-21 Thread andy pugh
On 21 July 2014 12:31, Stephen Dubovsky smdubov...@gmail.com wrote: All Kurt vises are keyed on the bottom. They even sell the keys in different stepped widths IIRC. For a specific machine table it possible to imagine 3 (or more) square pegs that align the vice to the T-slots in the 4 cardinal

Re: [Emc-users] joint

2014-07-21 Thread andy pugh
On 21 July 2014 06:59, a k pccncmach...@gmail.com wrote: to stop m52 p1 is m53 M53 is Feed Stop Control, it enables the feed-hold pin, it doesn't disable adaptive feed. http://www.linuxcnc.org/docs/html/gcode/m-code.html#sec:M52-Adaptive-Feed-Control M52 P0 turns off adaptive feed. -- atp If

Re: [Emc-users] OT: Mill Vise Advise

2014-07-21 Thread Pete Matos
All I can say... Is that I have had the cheap vices and tried to get one ground even to be flat and square. The reality tho is that if you really want to make parts and not screw around with things and waste time, the Kurt vises and some of the other top end vises are worth every single thin

Re: [Emc-users] OT: Mill Vise Advise

2014-07-21 Thread Gene Heskett
On Monday 21 July 2014 07:19:42 andy pugh did opine And Gene did reply: On 21 July 2014 12:06, Marius Liebenberg mar...@mastercut.co.za wrote: I saw a clever plan once where the guy attached a square piece of steel to the bottom of the vise. The steel fits the table T slot precisely. I do

[Emc-users] OT: Twist Drills

2014-07-21 Thread John Thornton
I'm writing a little Python program to give me RPM and IPM for twist drills. I have found some conflicting and some very old charts for feed per revolution like this one: http://www.free-ed.net/sweethaven/IndustrialTech/machinist01/pics/ch04.h1.gif I use mostly screw machine drills with 135°

Re: [Emc-users] OT: Mill Vise Advise

2014-07-21 Thread Stuart Stevenson
Gentlemen, my experience dictates DO NOT TRUST KEYS TO ALIGN VISES AND HOLDING FIXTURES!!! always verify the alignment with appropriate precision devices just my 2 cents Stuart On Mon, Jul 21, 2014 at 6:52 AM, Gene Heskett ghesk...@wdtv.com wrote: On Monday 21 July 2014 07:19:42 andy pugh

Re: [Emc-users] OT: Mill Vise Advise

2014-07-21 Thread Philipp Burch
Hi Stuart, true, but it's much easier to just verify that the alignment is correct than to align it without a key ;) Cheers, Philipp On 21.07.2014 18:44, Stuart Stevenson wrote: Gentlemen, my experience dictates DO NOT TRUST KEYS TO ALIGN VISES AND HOLDING FIXTURES!!! always verify the

Re: [Emc-users] OT: Mill Vise Advise

2014-07-21 Thread TJoseph Powderly
Stuart Agreed! keys, dowels and ground rear rails of slots are only to get you closer quickly you gotta tram it in TomP tjtr33 On 07/21/2014 11:44 AM, Stuart Stevenson wrote: Gentlemen, my experience dictates DO NOT TRUST KEYS TO ALIGN VISES AND HOLDING FIXTURES!!! always verify the

Re: [Emc-users] OT: Twist Drills

2014-07-21 Thread jeremy youngs
john this is the standby reference that i start with it is a really good reference and the ONE that i trust most , well worth the 20 bucks. http://www.ebay.com/itm/Machinists-Speed-Feed-Calculator-CNC-Mill-Tooling-/230704129486?pt=LH_DefaultDomain_0hash=item35b709a5ce jeremy youngs On Mon,

Re: [Emc-users] OT: Mill Vise Advise

2014-07-21 Thread Jon Elson
On 07/21/2014 11:44 AM, Stuart Stevenson wrote: Gentlemen, my experience dictates DO NOT TRUST KEYS TO ALIGN VISES AND HOLDING FIXTURES!!! always verify the alignment with appropriate precision devices Yup, I agree! if the keys were tight enough to get a few tenths alignment from end to

Re: [Emc-users] OT: Twist Drills

2014-07-21 Thread Sebastian Kuzminsky
On 7/21/14 10:13 , John Thornton wrote: I'm writing a little Python program to give me RPM and IPM for twist drills. I have found some conflicting and some very old charts for feed per revolution like this one: http://www.free-ed.net/sweethaven/IndustrialTech/machinist01/pics/ch04.h1.gif I

Re: [Emc-users] OT: Twist Drills

2014-07-21 Thread John Thornton
Jeremy, The photo is rather small, is the calculator small with tiny print? My eyes like big print. Just for SG what does your calculator say for drilling a 1/2 hole in aluminum with a 135° split point? JT On 7/21/2014 12:18 PM, jeremy youngs wrote: john this is the standby reference that i

Re: [Emc-users] OT: Twist Drills

2014-07-21 Thread jeremy youngs
well john !!! the truth is I am playing hooky , packing stuff up and dont currently know the whereabouts of said item :( i think it may be here at the house , rather it is packed already i do not know , if it is here i will answer your question if it is already packed it will be after the first

Re: [Emc-users] OT: Twist Drills

2014-07-21 Thread jeremy youngs
oh the print isnt terribly small but its also not giant either , when working with the mazaks and cutting at 350 ipm this calculator was surpriingly accurate, it was always interesting proving programs on a half million dollar machine with a 3000 dollar part and a 2500 dollar face mill and letting

Re: [Emc-users] OT: Mill Vise Advise

2014-07-21 Thread jeremy youngs
Yup, I agree! if the keys were tight enough to get a few tenths alignment from end to end on the vise jaw, it would be hard to put the key into the slot. Also, my understanding of the way the slots are made in at least some machines is the slots are milled first, then the dovetails are cut (or

[Emc-users] OT: newbie instruction

2014-07-21 Thread Herb Fuhrer
Hello and good day all. I've been on the list for a couple months ( since buying a cheapo 3040cnc on eBay ), and read the digests enthusiastically even tho to say I understand 2% would be stretchin it. Would anyone have recommendations for some self education ? Books / manuals to buy -

Re: [Emc-users] OT: newbie instruction

2014-07-21 Thread Marcus Bowman
I'm obviously biased, but you could try: http://www.crowood.com/details.asp?isbn=9781847975126t=CNC-Milling-in-the-Workshop---Crowood-Metalworking-Guides available through Amazon, or Book Depository (worldwide, free shipping):

Re: [Emc-users] OT: Mill Vise Advise

2014-07-21 Thread Steve Blackmore
On Mon, 21 Jul 2014 13:06:57 +0200, you wrote: I saw a clever plan once where the guy attached a square piece of steel to the bottom of the vise. The steel fits the table T slot precisely. He then lined the vise up and tightened the piece of steel in place. This way you can remove the vise and

Re: [Emc-users] OT: Twist Drills

2014-07-21 Thread John Thornton
Hi Seb, Thanks, have you seen the mill G code generator yet? http://gnipsel.com/files/g-code-generator/ JT On 7/21/2014 12:28 PM, Sebastian Kuzminsky wrote: On 7/21/14 10:13 , John Thornton wrote: I'm writing a little Python program to give me RPM and IPM for twist drills. I have found some

Re: [Emc-users] OT: Twist Drills

2014-07-21 Thread John Thornton
Hey Jeremy, Drop by any time (well call, text or e-mail me to make sure I'm home first) I love to have visitors here in my little corner of Swamp East Missouri. JT On 7/21/2014 1:13 PM, jeremy youngs wrote: well john !!! the truth is I am playing hooky , packing stuff up and dont currently

Re: [Emc-users] OT: Twist Drills

2014-07-21 Thread jeremy youngs
malden sorry jeremy youngs On Mon, Jul 21, 2014 at 7:33 PM, jeremy youngs jcyoung...@gmail.com wrote: my sister is in malsen , after 2.5 yrs back in upstate ny i am ready to get back to the home stead in the ozarks . I do intend on visiting a few of the membership here though and maybe

Re: [Emc-users] OT: Twist Drills

2014-07-21 Thread jeremy youngs
my sister is in malsen , after 2.5 yrs back in upstate ny i am ready to get back to the home stead in the ozarks . I do intend on visiting a few of the membership here though and maybe onece resettled open my place to hang out , but more on that as i get headed that way . boss is peaved i played

Re: [Emc-users] OT: Twist Drills

2014-07-21 Thread John Thornton
I assumed you meant Malden, which is just a few minutes away from Poplar Bluff. Have you ever eaten at Hydes (east of PB out in the middle of nowhere)? JT On 7/21/2014 6:34 PM, jeremy youngs wrote: malden sorry jeremy youngs On Mon, Jul 21, 2014 at 7:33 PM, jeremy youngs

Re: [Emc-users] OT: Twist Drills

2014-07-21 Thread jeremy youngs
no but i have taken several exams at the pb high school near the steak and shake jeremy youngs On Mon, Jul 21, 2014 at 7:44 PM, John Thornton bjt...@gmail.com wrote: I assumed you meant Malden, which is just a few minutes away from Poplar Bluff. Have you ever eaten at Hydes (east of PB out

Re: [Emc-users] OT: Mazak QT 20 T1 with Fanuc spindle drive problem

2014-07-21 Thread dave
Ouch! Maybe they deserve to go out of business! Something like leading a horse to water. ;-) Dave On Fri, 2014-07-18 at 11:23 -0400, Dave Cole wrote: On 7/17/2014 6:37 PM, Leonardo Marsaglia wrote: 2014-07-17 16:18 GMT-03:00 dave dengv...@charter.net: Mazak's policy is set up to

Re: [Emc-users] OT: Mazak QT 20 T1 with Fanuc spindle drive problem

2014-07-21 Thread Gregg Eshelman
Indeed. A couple of years ago, I asked to mazak for the replacement for the standar CRT monitor. They quoted me US 5000 more or less, for the entire unit. By that time, we were using the lathe with an old CGA monitor, because the frequency is the same. I bought an adaptation board from CGA to