Re: [Emc-users] Hardinge Conquest 42 Conversion

2015-12-07 Thread Jon Elson
On 12/07/2015 11:02 PM, Jeremy Jones wrote: > Thanks everyone. Sarah, thanks for that great link. Not sure how I haven't > come across that yet. I'm gonna look into everything. Thinking I might just > got this route off the bat. Looking it might be a minimum of $1500 to fix > the controls. I think

Re: [Emc-users] linuxcnc 2.7.3 - mesa 7i77 update

2015-12-07 Thread Peter C. Wallace
On Mon, 7 Dec 2015, Mark Johnsen wrote: Date: Mon, 7 Dec 2015 21:46:11 -0800 From: Mark Johnsen Reply-To: "Enhanced Machine Controller (EMC)" To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] linuxcnc 2.7.3 - mesa 7i77 update

Re: [Emc-users] linuxcnc 2.7.3 - mesa 7i77 update

2015-12-07 Thread Mark Johnsen
Stephen, I have the same issue and haven't been able to find a solution when I upgraded from 2.6.8 (?) to 2.7.0. First I updated the firmware on my 5i25 & 7i77. When I would run 2.7.0 I would get the following communication error. [ 87.831899] hm2/hm2_5i25.0: Smart Serial Comms Error: There

Re: [Emc-users] Hardinge Conquest 42 Conversion

2015-12-07 Thread andy pugh
On 7 December 2015 at 13:19, Stuart Stevenson wrote: > > The harder and correct answer is 'not until you make it do it'. Having said that, the sequence required for a lathe is rather simpler than for a milling machine. The "carousel" HAL component can do a lot of the work:

[Emc-users] Lathe spindle encoder drive

2015-12-07 Thread andy pugh
I have a lathe with a moderately large spindle. I want to drive an encoder (well, actually, a resolver) at a 1:1 ratio from this. The obvious way is with a 1:1 gear set, or a belt, but that does involve really quite a large gear on the weeny resolver shaft. I have been thinking about a 200:1

Re: [Emc-users] Linuxcnc on Fujitsu Siemens FUTRO S400

2015-12-07 Thread andy pugh
On 7 December 2015 at 14:22, Paul Lacatus (Personal) wrote: > I found a thin client computer from Fujitsu > Siemens Futro S400 that has the 1GB CF card ( the "hard drive") defective > and my ideea is to use it for linuxcnc computer. One solution is to use a > bigger card

Re: [Emc-users] Hardinge Conquest 42 Conversion

2015-12-07 Thread Stuart Stevenson
On Sun, Dec 6, 2015 at 2:46 PM, Jeremy Jones wrote: > Does LCNC support ATCs? > > The easy answer is 'yes'. The harder and correct answer is 'not until you make it do it'. Take your right forefinger and thumb and pinch your right earlobe. Hold that for a little while.

Re: [Emc-users] Poor mans soft turnon

2015-12-07 Thread Ken Strauss
"Thermistor" is the generic name for a device that changes resistance with temperature. I believe that they are available as both NTC and PTC (negative/positive temperature coefficient) devices. As noted in my earlier email with the TM symbol a "Surgistor" is a name trademarked by Stetron that has

Re: [Emc-users] Linuxcnc on Fujitsu Siemens FUTRO S400

2015-12-07 Thread andy pugh
On 7 December 2015 at 14:22, Paul Lacatus (Personal) wrote: > Right now the computer is a tower PC with a celeron 900MHz that is bigger > than the MF70 An alternative to this if the disparate sizes of the machine and the controller are a problem, might be one of the VESA

Re: [Emc-users] Poor mans soft turnon

2015-12-07 Thread Jon Elson
On 12/07/2015 06:11 AM, Gene Heskett wrote: > I definitely need to restore some means of bleeding them > off when powered down. IIRC I saw some mini-candelabra > sockets at Wallies a while back so I need to get 2 of them > and put a lamp across each half of the supply. Its 2 in > series and 2

Re: [Emc-users] Linuxcnc on Fujitsu Siemens FUTRO S400

2015-12-07 Thread Jon Elson
On 12/07/2015 08:22 AM, Paul Lacatus (Personal) wrote: > Hi everybody, > > I am using for some time Linux CNC on a small proxxon MF70 > for small PCB or small faceplate . Right now the computer > is a tower PC with a celeron 900MHz that is bigger than > the MF70. I found a thin client computer

Re: [Emc-users] Lathe spindle encoder drive

2015-12-07 Thread andy pugh
On 7 December 2015 at 15:54, Sarah Armstrong wrote: > how did your cad turn out https://picasaweb.google.com/lh/photo/jQREjwevQMPSQyyJspt0wtMTjNZETYmyPJy0liipFm0?feat=directlink -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto

Re: [Emc-users] Poor mans soft turnon

2015-12-07 Thread andy pugh
On 7 December 2015 at 15:53, Jon Elson wrote: > I would just get some vitreous enamel resistors. They are > not that expensive, even new. Or higher-power lower-resistance for a faster discharge.

Re: [Emc-users] Lathe spindle encoder drive

2015-12-07 Thread Sarah Armstrong
interesting Andy if we can hob one ! On 7 December 2015 at 16:17, andy pugh wrote: > On 7 December 2015 at 15:54, Sarah Armstrong > wrote: > > how did your cad turn out > > > >

Re: [Emc-users] Lathe spindle encoder drive

2015-12-07 Thread Stephen Dubovsky
I *THINK* if you incline your resolver gear you can use a straight cut gear. IIRC, the sum of helix angles must add up to the shaft angles. In your picture the shaft angles are 90deg so one helix is something like 80deg (the large gear) and the other is 10deg (the small gear). You can do the

Re: [Emc-users] Lathe spindle encoder drive

2015-12-07 Thread Sarah Armstrong
this is on my todo list for my lathe too how did your cad turn out , interesting too On 7 December 2015 at 15:46, andy pugh wrote: > I have a lathe with a moderately large spindle. I want to drive an > encoder (well, actually, a resolver) at a 1:1 ratio from this. > > The

Re: [Emc-users] Lathe spindle encoder drive

2015-12-07 Thread John Kasunich
Clever. Doesn't really need to be 1:1. If the spindle makes 2, or 3, or 4 revs per each rev of the encoder it would still work just fine even for threading. A non-integer would be a problem though. On Mon, Dec 7, 2015, at 10:46 AM, andy pugh wrote: > I have a lathe with a moderately large

Re: [Emc-users] Lathe spindle encoder drive

2015-12-07 Thread andy pugh
On 7 December 2015 at 16:42, Dave Caroline wrote: > Hobbing it is the easy bit, keeping the backlash and tooth form error > out much harder This might not be as critical as it seems, as the index will occur at the same point with the same gear teeth in contact every

Re: [Emc-users] Poor mans soft turnon

2015-12-07 Thread Ralph Stirling
Haas cnc mills use a kitchen stove top heating element for their spindle braking resistor. The smaller diameter elements are about 45 ohms, and the bigger ones 27 ohms. Wattage is over a kw, as they run at 240vac. The resistance is a bit low for a capacitor discharge resistor, but at the price

Re: [Emc-users] Lathe spindle encoder drive

2015-12-07 Thread Dave Caroline
Hobbing it is the easy bit, keeping the backlash and tooth form error out much harder Dave Caroline -- Go from Idea to Many App Stores Faster with Intel(R) XDK Give your users amazing mobile app experiences with Intel(R)

Re: [Emc-users] Lathe spindle encoder drive

2015-12-07 Thread andy pugh
On 7 December 2015 at 16:38, Stephen Dubovsky wrote: > Makes cutting the gears really easy. The large gear can be cut w/ a form > tool on a lathe just like you were cutting any other screw and the little > one can be easily bought (or cut using conventional gear cutter and

Re: [Emc-users] Poor mans soft turnon

2015-12-07 Thread Marcus Bowman
On 7 Dec 2015, at 03:57, Rafael wrote: > > > On 12/06/2015 07:25 PM, Gene Heskett wrote: >> Greetings all; >> >> Before tv's lost their crt's, there was a component in the power inlet >> circuit that had a very high negative temp coefficient, which was used >> to create a high voltage drop

Re: [Emc-users] Poor mans soft turnon

2015-12-07 Thread Gene Heskett
On Monday 07 December 2015 05:29:15 andy pugh wrote: > On 7 December 2015 at 03:25, Gene Heskett wrote: > > About 3 or 4 of those, wired in parallel, would also serve as an > > inrush limiter when I turn on the power supply for my G0704 mill. > >

Re: [Emc-users] Poor mans soft turnon

2015-12-07 Thread andy pugh
On 7 December 2015 at 03:25, Gene Heskett wrote: > About 3 or 4 of those, wired in parallel, would also serve as an inrush > limiter when I turn on the power supply for my G0704 mill. http://uk.rs-online.com/web/p/thermistors/2118030/ (And similar) But finding one that is

Re: [Emc-users] Poor mans soft turnon

2015-12-07 Thread Gene Heskett
On Monday 07 December 2015 03:24:21 Marcus Bowman wrote: > On 7 Dec 2015, at 03:57, Rafael wrote: > > On 12/06/2015 07:25 PM, Gene Heskett wrote: > >> Greetings all; > >> > >> Before tv's lost their crt's, there was a component in the power > >> inlet circuit that had a very high negative temp

Re: [Emc-users] Poor mans soft turnon

2015-12-07 Thread andy pugh
On 7 December 2015 at 12:11, Gene Heskett wrote: > IIRC I saw some mini-candelabra sockets at Wallies a while back > so I need to get 2 of them and put a lamp across each half of the > supply. Its 2 in series and 2 of those in parallel. I wonder if it would be worth using 240V

Re: [Emc-users] Poor mans soft turnon

2015-12-07 Thread andy pugh
On 7 December 2015 at 11:23, Gene Heskett wrote: > a third (mechanical) relay that connects a crowbar >> resistor across the caps when the power goes off. > > That was the reason for the night light lamp cobbled into mine, but its > since burned out, probably from some rigid

Re: [Emc-users] Poor mans soft turnon

2015-12-07 Thread Gene Heskett
On Monday 07 December 2015 06:52:38 andy pugh wrote: > On 7 December 2015 at 11:23, Gene Heskett wrote: > > a third (mechanical) relay that connects a crowbar > > > >> resistor across the caps when the power goes off. > > > > That was the reason for the night light lamp

Re: [Emc-users] Poor mans soft turnon

2015-12-07 Thread Gene Heskett
On Monday 07 December 2015 07:19:25 andy pugh wrote: > On 7 December 2015 at 12:11, Gene Heskett wrote: > > IIRC I saw some mini-candelabra sockets at Wallies a while back > > so I need to get 2 of them and put a lamp across each half of the > > supply. Its 2 in series and 2

Re: [Emc-users] linuxcnc 2.7.3 - mesa 7i77 update

2015-12-07 Thread Stephen Dubovsky
Ok, updated the 7i77 per your instructions. That seemed to work. It got rid of the messages when 2.7.3 starts up. So far so good, When I now F2 enable the machine I get a slew of "hm2/hm2_5i25.0: Smart serial card hm2_5i25.0.7i77.0.0 error = (4) Extra character" each with a ..."error = (13)

Re: [Emc-users] Linuxcnc on Fujitsu Siemens FUTRO S400

2015-12-07 Thread Paul Lacatus
> On 7 dec. 2015, at 18:27, andy pugh wrote: > > On 7 December 2015 at 14:22, Paul Lacatus (Personal) > wrote: >> Right now the computer is a tower PC with a celeron 900MHz that is bigger >> than the MF70 > > > An alternative to this if the

Re: [Emc-users] Lathe spindle encoder drive

2015-12-07 Thread Dave Caroline
While the index will be in the same place, any tooth form error will affect hobbing. Must write this subject up one day. Dave -- Go from Idea to Many App Stores Faster with Intel(R) XDK Give your users amazing mobile

Re: [Emc-users] Poor mans soft turnon

2015-12-07 Thread Gene Heskett
On Monday 07 December 2015 10:53:53 Jon Elson wrote: > On 12/07/2015 06:11 AM, Gene Heskett wrote: > > I definitely need to restore some means of bleeding them > > off when powered down. IIRC I saw some mini-candelabra > > sockets at Wallies a while back so I need to get 2 of them > > and put a

Re: [Emc-users] Poor mans soft turnon

2015-12-07 Thread Gene Heskett
On Monday 07 December 2015 11:13:45 andy pugh wrote: > On 7 December 2015 at 15:53, Jon Elson wrote: > > I would just get some vitreous enamel resistors. They are > > not that expensive, even new. > > Or higher-power lower-resistance for a faster discharge. >

Re: [Emc-users] Lathe spindle encoder drive

2015-12-07 Thread Gene Heskett
On Monday 07 December 2015 11:17:37 andy pugh wrote: > On 7 December 2015 at 15:54, Sarah Armstrong > > wrote: > > how did your cad turn out > > https://picasaweb.google.com/lh/photo/jQREjwevQMPSQyyJspt0wtMTjNZETYmy >PJy0liipFm0?feat=directlink Nice! Cheers, Gene

[Emc-users] My Holbrook conversion

2015-12-07 Thread andy pugh
Nothing to do with CNC, but looking inside a rather well-made lathe http://bodgesoc.blogspot.co.uk/2015/12/holbrook2.html Then some CAD design and pattern-making for new parts http://bodgesoc.blogspot.co.uk/2015/12/Holbrook3.html And the LinuxCNC part,

Re: [Emc-users] Hardinge Conquest 42 Conversion

2015-12-07 Thread Jeremy Jones
Thanks everyone. Sarah, thanks for that great link. Not sure how I haven't come across that yet. I'm gonna look into everything. Thinking I might just got this route off the bat. Looking it might be a minimum of $1500 to fix the controls. I think the LCNC electronics will be cheaper..I hope. Want