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HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › Runout. " inch/imperial" to "mm/metric"
02-06-2010 11:15 AM  8 years agoPost 1
gadzooks

rrApprentice

great briton,london

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I have seeen posts with 0.002" for runout at fan hub BUT the gauge i just got is metric!!! . I have no idea what the conversion is,can anyone confirm please.

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02-06-2010 12:31 PM  8 years agoPost 2
erick420

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Bangkok Thailand

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metric conversion.
1" = 25.4mm

so 0.002" = 0.0508mm

hope that helps

Beating the air into submission, because we can!

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02-06-2010 01:03 PM  8 years agoPost 3
gadzooks

rrApprentice

great briton,london

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Thanks, But what is that, a 10th ,100th of a mm?

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02-06-2010 02:50 PM  8 years agoPost 4
erick420

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Bangkok Thailand

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????
0.0508mm really?

it is 508 10,000's of a mm

if you want to round then it could be ----- 51 1,000's of a mm
or rounding further ---- 5 100's of a mm

so it depends on how accurate you (or your gauge) want to be.

Beating the air into submission, because we can!

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02-06-2010 05:34 PM  8 years agoPost 5
Ghia

rrApprentice

Abq, NM

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1 millimeter = 0.0393700787 inch

as a machinist that is the conversion we use.

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02-06-2010 06:45 PM  8 years agoPost 6
rupps5

rrApprentice

columbus ohio

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If you type in to google something like

1 mm to inches

it will convert it for you on their conversion calculator.

Jeff

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02-06-2010 08:13 PM  8 years agoPost 7
T-Rex-Flyer

rrElite Veteran

Panama City, Fl

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Something like this.
http://lmgtfy.com/?q=0.002+inch+in+millimeters

If the wings are traveling faster than the fuselage, it's probably a helicopter.

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02-06-2010 11:07 PM  8 years agoPost 8
Peefor

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Norfolk UK

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0.002" is usually called 2 thou. i.e 2 thousandths of an inch.

In metric, if you think of 0.01mm i.e 1 hundreth of a millimetre as half a thou, you won't go far wrong.

Your DTI may read in .01mm increments, just try and get the absolute minimum diviation that you can.

Pete

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02-06-2010 11:50 PM  8 years agoPost 9
heliguy

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Boulder, CO

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02-07-2010 03:48 AM  8 years agoPost 10
Paul Woodcock

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Dubai - United Arab Emirates

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Hi

On most dial indicators, the small graduations are 0,01mm.

Here on RR everyone talks about '2 thou' being the limit....... that on a mm dial indicator is 0,05mm. ie 5 of the small graduations.....

I had to 'special order' a 0,001mm graduation dial indicator. '2 thou' on my indicator is 50 of the small graduations...... its like 1/2 the dial movement. I like it better.

Regards
Paul

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02-07-2010 11:33 AM  8 years agoPost 11
600rr

rrApprentice

london.united kingdom

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Peefor, pwood... Thats very clear info.The tip on 1/100th of mm being half a thou was spot on.I can get my head around that.

Right,where did i put that large 3" steel plate and heavy vice

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02-07-2010 03:24 PM  8 years agoPost 12
T-Rex-Flyer

rrElite Veteran

Panama City, Fl

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Heliguy, thats a great Conversion Calculator page, but I didn't see a converter to/from a Henweigh.

If the wings are traveling faster than the fuselage, it's probably a helicopter.

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02-07-2010 03:43 PM  8 years agoPost 13
heliguy

rrVeteran

Boulder, CO

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T-Rex

Right...

We'll let someone else bite on that one.

Al

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02-07-2010 04:37 PM  8 years agoPost 14
600rr

rrApprentice

london.united kingdom

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He has got to be cracking up "laying" in wait "eggspecting" someone to ask. Here you go........... Whats a Hemweigh?

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02-08-2010 02:19 PM  8 years agoPost 15
T-Rex-Flyer

rrElite Veteran

Panama City, Fl

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If the wings are traveling faster than the fuselage, it's probably a helicopter.

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02-11-2010 08:57 PM  8 years agoPost 16
fruit bat

rrNovice

England

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0.002 of an inch is known 2 thou and 0.05 is 50 microns.A human hair is 0.100MM thick

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02-12-2010 01:43 PM  8 years agoPost 17
JRjoe

rrElite Veteran

Jonesville , IN USA #1

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LMGTFY

http://www.lmgtfy.com/?q=0.002+inches+to+mm


JRjoe.....
Indoor plumbing??? No, we don't need that!!!

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02-12-2010 02:04 PM  8 years agoPost 18
T-Rex-Flyer

rrElite Veteran

Panama City, Fl

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JRjoe

I guess you missed the seventh post from the top.

If the wings are traveling faster than the fuselage, it's probably a helicopter.

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02-12-2010 04:08 PM  8 years agoPost 19
Raptor Pilot

rrVeteran

Northern Ireland U.K

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Interesting post, i guess im lucky that i was brought up in the aircraft manafacturing industry where i use imperial and metric measurments and can convert them in my head without haveing to think about it. As to which system i use in every day life, i prefer the imperial system.

If it doesnt move and its meant too... use WD 40. If it moves and its not meant too...use duct tape!

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