Tips/Techniques Dimensioning and tolerancing

I went searching for info on what H6 meant in relation to a shaft dimension and found this excellent document on dimensioning and tolerancing.

 

[jcdammeyer]

I went searching for info on what H6 meant in relation to a shaft dimension and found this excellent document on dimensioning and tolerancing.

WELL CRAP! Now that I've seen it I can't un-see it and that means I now have to improve how I dimension my drawings. @DavidR8 ... Don't you have something to build in the shop instead of flooding us with useful information?

 

[djberta]

That is a great document.

 

[Susquatch]

I got drowned in that crap when I was required to do it. Now I only do what I feel is needed. But it's always useful to know what the various terms mean when others use them.

 

[CWret]

This rather dates me - but I took drafting and was required to be proficient with a slide rule.
Oh yeah - also learned descriptive geometry and how to use log tables.

 

[ChazzC]

This rather dates me - but I took drafting and was required to be proficient with a slide rule.
Oh yeah - also learned descriptive geometry and how to use log tables.

Join the club: when I say “descriptive geometry” I get blank stares or at best “What’s that?” If I tell them, “It’s figuring out where a line connecting two points on opposite sides of an oblique plane passes through the plane using drawings” and that really bewilders them.

That was 55+ years ago.

 

[ChazzC]

I got drowned in that crap when I was required to do it. Now I only do what I feel is needed. But it's always useful to know what the various terms mean when others use them.

I just rely the old standby of +/- half the least significant figure of a dimension and “free-running fit.”

As a hobbyist (and not an engine builder) these work for me. Now if I were a former Die Maker, I’d probably have a different opinion.