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2011-2014 Mustangs
2011-2014 Mustang Talk
MT-82 factory specs
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<blockquote data-quote="atistang" data-source="post: 12199505" data-attributes="member: 130583"><p>i'm not sure exactly what parts they use their zeiss to measure, but.</p><p></p><p></p><p>a cmm is a coordinate measuring machine, basically it is a computer controlled machine that runs a program to check the dimensions of a certain part. these machines are super accurate and can calculate a sorts of theoretical points and positions. a part it would take man hours or even days to check this machine can do in mins. I know companies use them for checking valve bodies for automatics, just not sure where else these use them at. these cmm's are very sensitive, they need to be in a "clean room" and use air bearings to glide across their granite base (which is typically 12" thick or more). zeiss is suppose to tear them down and check everything, clean everything, and then recalibrate everything every so many hours, according to the guy doing one of ours at work ford has told them not to come do these pms any more. </p><p></p><p>that seems alright, but here is what happened where i work. people use to lean on the machine arm when it was not in use. so one day i remember talking with some coworkers about how we have been slowly moving our work offsets (cnc mills) more and more the same direction to continue to run good parts and how odd it was. after a few days of this we had quality bring a shit load of parts back saying we need to recheck them because they are no good. so we recheck them all and they are good. send them back through and they got rejected again. so we checked them on another zeiss out on the floor and sure enough they were not good parts. zeiss came in and discovered that the mast had been tweaked a few thousandths and it was enough to throw everything off. now if we were running typical "push go" machines and quality was the only one checking the parts then these parts would have went to our customers and they would have never know the difference until their plasma chambers started screwing up</p><p></p><p></p><p> like i said i'm not sure where ford uses these but for them to cancel the schedules pm's is a sign that they are taking risks to keep cost down. heres a picture of a zeiss cmm checking a valve body</p><p></p><p><img src="http://www.zeiss.co.uk/412568200024CFA5/GraphikTitelIntern/08_cmm_os/$File/08_cmm_os.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="atistang, post: 12199505, member: 130583"] i'm not sure exactly what parts they use their zeiss to measure, but. a cmm is a coordinate measuring machine, basically it is a computer controlled machine that runs a program to check the dimensions of a certain part. these machines are super accurate and can calculate a sorts of theoretical points and positions. a part it would take man hours or even days to check this machine can do in mins. I know companies use them for checking valve bodies for automatics, just not sure where else these use them at. these cmm's are very sensitive, they need to be in a "clean room" and use air bearings to glide across their granite base (which is typically 12" thick or more). zeiss is suppose to tear them down and check everything, clean everything, and then recalibrate everything every so many hours, according to the guy doing one of ours at work ford has told them not to come do these pms any more. that seems alright, but here is what happened where i work. people use to lean on the machine arm when it was not in use. so one day i remember talking with some coworkers about how we have been slowly moving our work offsets (cnc mills) more and more the same direction to continue to run good parts and how odd it was. after a few days of this we had quality bring a shit load of parts back saying we need to recheck them because they are no good. so we recheck them all and they are good. send them back through and they got rejected again. so we checked them on another zeiss out on the floor and sure enough they were not good parts. zeiss came in and discovered that the mast had been tweaked a few thousandths and it was enough to throw everything off. now if we were running typical "push go" machines and quality was the only one checking the parts then these parts would have went to our customers and they would have never know the difference until their plasma chambers started screwing up like i said i'm not sure where ford uses these but for them to cancel the schedules pm's is a sign that they are taking risks to keep cost down. heres a picture of a zeiss cmm checking a valve body [img]http://www.zeiss.co.uk/412568200024CFA5/GraphikTitelIntern/08_cmm_os/$File/08_cmm_os.gif[/img] [/QUOTE]
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