In this case it is simpler than that. The machine runs and the company takes on a contract to supply parts. The machine breaks down and the parts are not supplied per the contract. Best case: The customer decides to take their business elsewhere and future business is lost. Worst case: The customer sues the company since the contract was not met. Any possible profit is erased and it turns into a legal liability situation.
Dave On 3/26/2012 5:34 AM, charles green wrote: > mtbf has a limited scope. instead, the consideration should be of mttvp - > mean time to vanishing profit. the trend seems to be generally in the > direction of maximizing the product mttvp=l*mtbf by reducing the cost of > l=labor by any means. this has a mixed effct in markets where stockholders > are also laborers, but the results are fantastic in areas where investment is > segregated from toil. > > > --- On Sun, 3/25/12, Dave<[email protected]> wrote: > > >> From: Dave<[email protected]> >> Subject: Re: [Emc-users] Storebro 260, firstEcounter etc... >> To: [email protected] >> Date: Sunday, March 25, 2012, 10:54 PM >> >>>> Get acquainted with the >>>> >> system is a good thing to do if it's >> possible, right? >> >> Well.. if you can get it to run and do what you want >> to do with the >> existing controls, that is fine. But if I were you I >> would use that >> opportunity to understand how the turret works, electrically >> and >> mechanically, how the drives function, how the machine is >> shifted - if >> it has various ranges, etc and then line up some parts and >> time to >> retrofit that machine. Assuming you keep the drives, I >> would start >> looking for spares to keep on the shelf. >> >> The problem is that when that machine goes down hard, it >> will be very >> difficult and expensive to get it to run again, unless you >> have a cache >> of spare boards. So if you take an order to run >> on that machine for a >> 1000 parts and you are 200 parts into that order and the >> machine dies, >> you may be in a very bad spot. >> >> Dave >> >> >> On 3/25/2012 3:50 PM, Roger Holmquist wrote: >> >>> Thanks Dave for your thoughts. >>> >>> The MTBF-factor is of course a hard caught animal, I >>> >> guess I have at >> >>> least two objectives with a project like this: >>> 1) Try to make it run by repairing it or work around >>> >> it's faults. >> >>> 2) Treat it as an self educational exercise aiming at >>> >> more modern >> >>> machines and controls. >>> >>> This could done I guess, on another machine machine but >>> >> if we decide >> >>> to refurbish it with a new control it's good to dig >>> >> inte a working >> >>> system because somewhere you have to cut the >>> >> wires between the >> >>> control and the machine. >>> Get acquainted with the system is a good thing to do if >>> >> it's >> >>> possible, right? >>> I can observe the behaviour of the switches in the >>> >> diagnosispage and >> >>> I think this is a great way to find out how it works, >>> >> by observing >> >>> it's various parameters in action. >>> You may also monitor the signals on the physical wiring >>> >> when the >> >>> system is running making use of logic analyers, >>> >> oscilloscopes and >> >>> multimeters. >>> Yes, I have a background in repairing electronics, >>> >> analogue and >> >>> digital, the analytical way. >>> Nonetheless, it still may turn out to be too cumbersome >>> >> so doing this >> >>> on a more modern system should probably be a better >>> >> investment. >> >>> I'll talk to Johnny about this. >>> >>> Greetings / Roger >>> >>> >>> >>> >>> >>> >>> >>> >>> 25 mar 2012 kl. 21:13 skrev [email protected]: >>> >>> >>> >>>> I looked at the Siemen website and they only go >>>> >> back to the Sinumerik >> >>>> 8T. I've deal with some of the hardware that >>>> >> the 8T used and it was >> >>>> very difficult to make that >>>> hardware reliable. Unless you can get that >>>> >> control to operate >> >>>> properly >>>> and find documentation (unlikely) I'd replace it. >>>> I've spent days working on old controllers like >>>> >> that and sometimes >> >>>> they >>>> end up working ok for a while, but when you are >>>> >> done, the best you >> >>>> have >>>> is a very old control that is living on the >>>> >> edge. If it goes down, it >> >>>> tends to stay down and simply become a time eater. >>>> >>>> Dave >>>> >>>> >>> ----------- >>> abCNC >>> ----------- >>> Roger Holmquist >>> Bockarp villa Tallebo >>> 59592 Mjölby >>> +46-706-250123 >>> +46-768-788477 >>> +46-142-20542 >>> [email protected] >>> http://abcnc.se >>> >>> >>> >>> >>> >>> >>> >> ------------------------------------------------------------------------------ >> >>> This SF email is sponsosred by: >>> Try Windows Azure free for 90 days Click Here >>> http://p.sf.net/sfu/sfd2d-msazure >>> _______________________________________________ >>> Emc-users mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/emc-users >>> >>> >>> >> >> ------------------------------------------------------------------------------ >> This SF email is sponsosred by: >> Try Windows Azure free for 90 days Click Here >> http://p.sf.net/sfu/sfd2d-msazure >> _______________________________________________ >> Emc-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> > ------------------------------------------------------------------------------ > This SF email is sponsosred by: > Try Windows Azure free for 90 days Click Here > http://p.sf.net/sfu/sfd2d-msazure > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > > ------------------------------------------------------------------------------ This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
