Thread: But we did agree to disagree

Tweet

In my GE machining history a long time ago and then my design positions - our design practices said .02 meant .020, .0200 or .02000 or for as long as you wanted to add zeros to the end. There was no tolerance implied. If there was a tolerance, it was either stated in the title box on the front of the drawing (usually another drawing, called a spec) or at the specific dimension itself if it deviated from the spec drawing allowance. It didn't mean .021, .022, .0201 or any other dim.

Many companies have design practices that deviate from this and do allow you to make assumptions - but you sure don't have that luxury on a 43 inch long staem turbine blade or 100,000 pound (plus) shaft that rotates as high as 5000 rpm or more. If you can find a copy of Machinery's Handbook, my newest is the 21st edition(old), there are about 50 pages of a chapter, Allowances and Tolerances, and another 10 of measuring instruments that are guaranteed to induce sleep.

Denny---Somebody is pulling your chain!!! Gas at the pumps in ontario is $1.05 a litre for the cheap, low test stuff. that works out to 1.05 x 3.78543=$3.97 per US gallon. --Brian

Ah Yes, Denny---But right now our dollar is worth $1.02 American, so that same gas costs 1.02 x 3.97=$4.05 american. and Hey---I seen that picture you posted of your sons girlfriend (briefly). Certainly looks like the trip to Quebec would be justifiable, no matter what the gas cost!!!

NHRA uses the same 2 digit logic when they post reaction times and ETs. .02 is 2 thousandths of a second.

Originally Posted by Twitch

NHRA uses the same 2 digit logic when they post reaction times and ETs. .02 is 2 thousandths of a second.

Reaction time is measured in thousnths of a second, but I believe 0.02 is 20 thousanths, not 2.

.02 = 20/1000

.002 = 2/1000

Kitz

Damn---I have to get another contract!!! This internet posting is like self abuse---takes up time and feels good but doesn't accomplish much.

Originally Posted by brianrupnow

Damn---I have to get another contract!!! This internet posting is like self abuse---takes up time and feels good but doesn't accomplish much.

Brian,what I like most about this forum (minus tech talk)is it starts out on a subject and ends up totally unrelated to the original subject.You really learn a lot about everyone when this happens,I LOVE IT=======.

Don--I,m just killing time. Generally, I have a design engineering contract on the go, and that pretty well sucks up my entire day. I "tune in" 2 or 3 times a day to see what everyone is posting about, but mainly, I lurk. Last week I finished a contract job for Toyota, and this week I've sent out about 60 emails soliciting new work, but untill something comes alive, I kill time on the forums. I putter around on here, and over on the HAMB, and a bit on Streetrodding.com Sometimes I can give good advice, sometimes I just have a funny story to pass on, but mainly, its killing time waiting for that damn phone to ring and somebody ask "Do you have any experience designing____ "
if so, what are your rates, how busy are you, can you come see us tomorrow---Yada Yada Yada.

Okay---I feel better now. Wifey and I and daughter went out for dinner tonight--When I got home there was a phone message for me---a 200 hour contract to be finished early in Jan., with possibility of another 800 hours starting in mid January.--That should finish out this year in style, and get one heck of a start on 2008.

Congrats Brian: What design software are you using? We used AutoCad level 12 or 20(been a while) back in 97.

WOW, we've covered tolerances, contracts, gas prices both here and there, someones love life, a small funny and probably something I missed. Still no consensus as to whether or not .02 and .020 are the same thing. The issue has been settled though. I out drank him 3-2 and he conceded.
Merry Christmas, Guy and Dolls an a Happy New Year: 3dSMILE:

Don---I made the transition to 3D solids about 7 years ago. I now work exclusively in Solidworks. I worked on a drafting board for 32 years, then at age 50, due to increasing customer demand for computerized drawings I went back to college and learned Autocad 2D. I learned on version 13 (horrible) then moved up to version 14 (great). After 3 years working in 2D autocad, customer demand forced me to make the transition to 3D solid modelling. I now do all my design in 3D, and teach 3D solid modelling to other engineering and design companies.---Brian
www.rupnowdesign.com