Got any machinests here?
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Posting Guru
Joined: Sep 2002
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From: Charleston, SC
Got any machinests here?
On another forum we were measuring crank endplay. One guy bought a dial indicator and reported seven mil of endplay.
I said the word mil isn't used like that in the machine shop, it's more of a scientific measurment often used in poly garbage bags and the like. It would be clearer if he said seven thousandths. (0.007)
I'm told that I'm wrong and mil IS used like that. Are there any Machine shop workers out there? What do you guys do?
I said the word mil isn't used like that in the machine shop, it's more of a scientific measurment often used in poly garbage bags and the like. It would be clearer if he said seven thousandths. (0.007)
I'm told that I'm wrong and mil IS used like that. Are there any Machine shop workers out there? What do you guys do?
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From: clementsport canada
Got any machinests here?
any machinist's and mill wrights i deal with in our shop ( machine/welding shop) deal in thou. thousandth's . or .0001" how ever you want to write it.
only mill i've ever heard was millimeter. or milling machine
you've got my vote ranger
only mill i've ever heard was millimeter. or milling machine
you've got my vote ranger
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Posting Guru
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From: Charleston, SC
Got any machinests here?
Thanks so far, the debate is still raging. mil is actually a word for thousandths but only used in scientific measurement and poly garbage bags AFAIK.
The same as .100 is one tenth of an inch, but if you told a machinist to remove a couple of tenths, he would think .0002 while you said .2000 (a machinist would say one hundred thousandths) .100 and not a tenth.
I'm not fighting that mil is a incorrect word it means thousand, just not used in the shop because it creates more confusion with millionth.
Sorry for the spelling of machinist very early this morning, I'm pond scum.
The same as .100 is one tenth of an inch, but if you told a machinist to remove a couple of tenths, he would think .0002 while you said .2000 (a machinist would say one hundred thousandths) .100 and not a tenth.
I'm not fighting that mil is a incorrect word it means thousand, just not used in the shop because it creates more confusion with millionth.
Sorry for the spelling of machinist very early this morning, I'm pond scum.
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From: Where they take the census by counting the appliances on the front porch and multiplying by five
Got any machinests here?
I'm a machinist (sometimes). It's Thousandths-.ooo
Or sometimes ten-thousandths -.0000
Not mils. I've never seen a print in mils.
You are correct. Mils is a scientific measurement for thickness I believe.
Chuck
Or sometimes ten-thousandths -.0000
Not mils. I've never seen a print in mils.
You are correct. Mils is a scientific measurement for thickness I believe.
Chuck
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From: Minneapolis, MN
Got any machinests here?
In our shop we refer to dimensions in thou's or thousandths. Thou is just easier to say.
When we say tenths we mean tenths of a thousandth, as in 37 and 2 tenths, =0.0372
If anyone mentions "mils" they are saying "mills" meaning the milling machines. I've never heard anyone (in our shop) reference a dimension in mils even though it is a "correct" term. Unless they were referring to the thickness of a garbage bag or a film coating. It helps when everyone is on the same page IMHO.
When we say tenths we mean tenths of a thousandth, as in 37 and 2 tenths, =0.0372
If anyone mentions "mils" they are saying "mills" meaning the milling machines. I've never heard anyone (in our shop) reference a dimension in mils even though it is a "correct" term. Unless they were referring to the thickness of a garbage bag or a film coating. It helps when everyone is on the same page IMHO.
Senior User
Joined: Dec 2002
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From: my house
Got any machinests here?
Everyone here uses tenths and thou's. the only place I've ever personally used the word mils is in class.
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Joined: Jun 2002
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From: CT
Got any machinests here?
Very seldom do you hear a toolmaker,modelmaker or machinist use mills' when talking of a measurement.
Foil and plastic industry (saran wrap type - aluminum foil) use this regulary - maybe the fella using the terminology works on the dies for extruding thin sheet material.
I'd have to think for a second if someone said 45 mil's slop but if they said 4.5 thou I'd understand. If they said a 4 mill of teflon impregnation I'd be like OK whatever.
blu
Foil and plastic industry (saran wrap type - aluminum foil) use this regulary - maybe the fella using the terminology works on the dies for extruding thin sheet material.
I'd have to think for a second if someone said 45 mil's slop but if they said 4.5 thou I'd understand. If they said a 4 mill of teflon impregnation I'd be like OK whatever.
blu
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Joined: Apr 2002
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From: WEEDSPORT NY
Got any machinests here?
I deal w/ machinists on a daily basis and I have never heard the term "mills" used when measuring anything other than film thickness.
BTW we sell equipment that will measure to 0.000005" with repeatability of 0.000008" All you need is a spare $83500.00US and you to can be in the big leagues
I, myself, will never come close to needing anything like that.
BTW we sell equipment that will measure to 0.000005" with repeatability of 0.000008" All you need is a spare $83500.00US and you to can be in the big leagues
I, myself, will never come close to needing anything like that.
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From: clementsport canada
Got any machinests here?
btw, to those who don't know. 2 thou, 0.002" is the thickness of a human hair. and yes we machinist can measures this very easily.... i make fits within 0.0005" every day, and i'm using 50-80 year old equipment. no CNC here baby :P
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