Re: [Emc-users] OT-Retrofitting machines

2012-05-13 Thread Jon Elson
andy pugh wrote: > Are you talking about retrofitting LinuxCNC to a used CNC machine here? > Many old CNC machines have good iron but broken/old/rubbish > controllers. A controller-only retrofit of those machines can be > fairly quick and fairly cheap. > One comment. Many machines from perhaps

Re: [Emc-users] OT-Retrofitting machines

2012-05-13 Thread Jon Elson
k...@gmail.com wrote: > There is a bit of talk on some machine shop forums, arguments perhaps, that > retrofitting a machine is a waste of time. > And that it's time and money well spent to just buy a good used > machine and move on with making money with it. > Any comments on this from the list? >

Re: [Emc-users] OT-Retrofitting machines

2012-05-13 Thread robert
here my findings running a CNC machine shop full time we now have 4 machines on Linuxcnc (3x Laths all hardinge , 1x VMC leadwell) soon to be 5 (will be a 2nd VMC) all around 1985up machines , these machines had good solid Iron (something some of the newer ones lack), with only a few needed serv

Re: [Emc-users] OT-Retrofitting machines

2012-05-13 Thread andy pugh
On 13 May 2012 21:12, Roger Holmquist wrote: >> 1) differential analogue ports: in 4, out 4 ,resolution 12 bits, >> sample rate 10 Ms / s That might be tricky, what's the application? -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ---

Re: [Emc-users] OT-Retrofitting machines

2012-05-13 Thread Roger Holmquist
> Well, I have read your arguments and I guess I'm in! > > > I think I will start with the 2-core Intel atom board Viesturs > mentioned. > And then we have the pheripherals, here is my very preliminary > wish-list, (not much knowledge of my lathe control-interfaces ): > > > PCI: > 1) diff

Re: [Emc-users] OT-Retrofitting machines

2012-05-13 Thread Viesturs Lācis
2012/5/13 andy pugh : > On 13 May 2012 20:34, Viesturs Lācis wrote: > >> which means that nobody owns >> it and thus there is nobody to hold responsible for something. That is >> the only drawback of opensource I have seen so far. > > You can sell this as a feature, in some ways. If there is a pro

Re: [Emc-users] OT-Retrofitting machines

2012-05-13 Thread andy pugh
On 13 May 2012 20:34, Viesturs Lācis wrote: > which means that nobody owns > it and thus there is nobody to hold responsible for something. That is > the only drawback of opensource I have seen so far. You can sell this as a feature, in some ways. If there is a problem then _any_ programmer they

Re: [Emc-users] OT-Retrofitting machines

2012-05-13 Thread Viesturs Lācis
2012/5/13 Stuart Stevenson : > > Part of the LinuxCNC problem is the person signing the check trusts Fanuc > or Allan Bradley because it is familiar and safe. In this context every new startup machine tool maker faces the market unawareness - people do not know it, so are not very trustful, not to

[Emc-users] OT-Retrofitting machines

2012-05-13 Thread Stuart Stevenson
If we could get rid of the two or three gripes LinuxCNC would easily be the control of choice for almost anything. How long did it take for the IBM pc to lose the lead. I used to hear a snooty 'I have an IBM' when discussing PCs. How long has it taken Linux to even be in the same sentence as Window

Re: [Emc-users] OT-Retrofitting machines

2012-05-13 Thread Scott Hasse
Of course there are some people and businesses for which a retrofit will make no sense. For our organization (community group with almost no capital to speak of but lots of volunteer time/interest), our LinuxCNC retrofits have been great. We are a group of hackers, many of whom subscribe to the "

Re: [Emc-users] OT-Retrofitting machines

2012-05-13 Thread Viesturs Lācis
Stuart, I think that I will mark Your email for later reference, because it perfectly explains the same situation I was 3 years ago as a result of which I am now making my living on building cnc machines or retrofitting existing ones and LinuxCNC is the only and exclusive controller for me. Sometim

Re: [Emc-users] OT-Retrofitting machines

2012-05-13 Thread Viesturs Lācis
2012/5/13 Stephen Dubovsky : > On Sun, May 13, 2012 at 3:45 AM, Viesturs Lācis > wrote: > >> LinuxCNC is advanced enough that the functionality of the retrofitted >> machine will totally match capabilities of brand new machine. >> >> > LinuxCNC isn't the problem.  The old iron is.  And it has noth

Re: [Emc-users] OT-Retrofitting machines

2012-05-13 Thread Stuart Stevenson
I don't want to start a war with this BUT almost all the these opinions are done by people with the desire to buy new machines or sell new machines. Over one half the machines in my two shops were purchased new. The new machines are no faster or productive than new machines. In fact, last Friday I

Re: [Emc-users] OT-Retrofitting machines

2012-05-13 Thread Stuart Stevenson
USD10,000 equals 1 to 3 control repairs. A retrofit can be less than 10k and avoid current and further control repairs. A retrofit to replace a control that repair parts are unavailable for makes all kinds of sense. On one of my machines with a functioning control (year model 1998 and the control r

Re: [Emc-users] OT-Retrofitting machines

2012-05-13 Thread Stephen Dubovsky
On Sun, May 13, 2012 at 3:45 AM, Viesturs Lācis wrote: > LinuxCNC is advanced enough that the functionality of the retrofitted > machine will totally match capabilities of brand new machine. > > LinuxCNC isn't the problem. The old iron is. And it has nothing to do w/ the condition of old iron.

Re: [Emc-users] OT-Retrofitting machines

2012-05-13 Thread Viesturs Lācis
2012/5/13 dave : > > It depends on the final usage. If you are commercial paying 10K to > refit a machine it may not make much sense. Could You, please, explain, why not? If the overall condition of mechanics of machine is very good, the controller is dead (could be some minor issues with mechanic

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread dave
On Sat, 12 May 2012 15:03:43 -0700 Tux Lab wrote: > Used cnc machines are so common and fairly inexpensive, retrofitting > with EMC doesn't make that much sense once you factor in the amount of > time it take to do a retofit. However, if a replacement machine cost > hundreds of thousands, or if

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread dave
On Sat, 12 May 2012 22:30:13 -0400 BRIAN GLACKIN wrote: > > > > > > > > > I think this has a lot to do with a focus on production and not on > > the techie side. > > > > Dave > > > > > > I can appreciate this. Unfortunately, this can be a blind side for > the business. The gentleman I spok

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread BRIAN GLACKIN
> > > I think this has a lot to do with a focus on production and not on the > techie side. > > Dave > > I can appreciate this. Unfortunately, this can be a blind side for the business. The gentleman I spoke with that had the unit said they had not run it in three years and rather than do so

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread dave
On Sat, 12 May 2012 13:26:51 -0400 BRIAN GLACKIN wrote: > I have seen recently a local machine shop "throw away" an Index > Vertical Mill with a dead control for $300 on Craigslist. I was the > second caller THe mill was identical to one sold on government > liqudators for $2,500 several mo

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread charles green
what is this 'spare time' that you mention? i'm intrigued. --- On Sat, 5/12/12, cogoman wrote: > From: cogoman > Subject: Re: [Emc-users] OT-Retrofitting machines > To: "Enhanced Machine Controller (EMC)" > Date: Saturday, May 12, 2012, 8:36 AM >

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread andy pugh
On 12 May 2012 23:03, Tux Lab wrote: > Used cnc machines are so common and fairly inexpensive, retrofitting > with EMC doesn't make that much sense once you factor in the amount of > time it take to do a retofit. Are you talking about retrofitting LinuxCNC to a used CNC machine here? Many old CNC

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread Tux Lab
Used cnc machines are so common and fairly inexpensive, retrofitting with EMC doesn't make that much sense once you factor in the amount of time it take to do a retofit. However, if a replacement machine cost hundreds of thousands, or if you are doing 10 or 20 machines, then retrofitting can proba

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread sam sokolik
this thread? http://www.practicalmachinist.com/vb/cnc-machining/old-cnc-machine-retrofit-success-stories-245900/ Converting from a proprietary expensive control that is a black box and expensive to fix to a open source open hardware pc based control seems like a no brainer... You are also goin

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread BRIAN GLACKIN
I have seen recently a local machine shop "throw away" an Index Vertical Mill with a dead control for $300 on Craigslist. I was the second caller THe mill was identical to one sold on government liqudators for $2,500 several months ago with a speared control cabinet. According to the half ow

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread Stuart Stevenson
Uh, it can be entertaining to make money! :) On May 12, 2012 12:17 PM, "andy pugh" wrote: > On 12 May 2012 15:15, k...@gmail.com wrote: > > There is a bit of talk on some machine shop forums, arguments perhaps, > that > > retrofitting a machine is a waste of time. > > I think it depends on wha

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread andy pugh
On 12 May 2012 15:15, k...@gmail.com wrote: > There is a bit of talk on some machine shop forums, arguments perhaps, that > retrofitting a machine is a waste of time. I think it depends on what you mean by "retrofitting". Converting a manual machine probably does't make much sense in many cases.

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread Roger Holmquist
Well dk, this is part of my tasks starting on monday... I do indeed already have some experience as mentioned on this list and elsewhere and I have in fact not decided yet what to think. You and other interested parties are welcome to follow the development on the Swedish front. There is certain

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread cogoman
On 05/12/2012 10:15 AM, k...@gmail.com wrote: > There is a bit of talk on some machine shop forums, arguments perhaps, that > retrofitting a machine is a waste of time. > And that it's time and money well spent to just buy a good used > machine and move on with making money with it. > Any comments

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread Viesturs Lācis
2012/5/12 k...@gmail.com : > There is a bit of talk on some machine shop forums, arguments perhaps, that > retrofitting a machine is a waste of time. [irony=true] Yes, of course, retrofitting 20-years old machine with a budget 7K EUR is total waste of money, better purchase new machining centre fo

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread Dave Caroline
It also depends what you mean by good used. a dead control with good machine a machine with no control a manual machine I retrofitted to an educational machine where the computer was out of date the machine itself looked like it had done no work at all so for £330 +carriage I had the mechanics a

Re: [Emc-users] OT-Retrofitting machines

2012-05-12 Thread John Thornton
I've found the older controls a giant pain in the ass to run and LinuxCNC is a joy to run... well worth it to me to convert to gain the improved capabilities of a modern control. Now if I just had some time to finish my Anilam conversion... John On 5/12/2012 9:15 AM, k...@gmail.com wrote: > Th

[Emc-users] OT-Retrofitting machines

2012-05-12 Thread k...@gmail.com
There is a bit of talk on some machine shop forums, arguments perhaps, that retrofitting a machine is a waste of time. And that it's time and money well spent to just buy a good used machine and move on with making money with it. Any comments on this from the list? dk -