Print Reading and Tolerancing in the Machine Shop

Here is my brief, and hopefully thorough enough, introduction to reading prints and understanding tolerances.

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[firearmsstudent]

So... yeah, this is Justin from QA just letting you know that you're wrong. Toodaloos.

[davidrule]

I'm a pipe fitter/machinist, It go's a long way when a draftsman would come out to the shop floor. Watching what we do and asking about a pipe spool he has to design. When there is a field weld, he would ask "where do you want it". This would avoid any 1G horizontal welds, as they typically take longer. However sometimes they are preferred to avoid ladder or laying on the ground welds.

[qcnck]

It is always a pleasure to see the basics lectures from you. Great, concise explanations. Please keep it up.

[bruce]

Stuart, another informative useful video. Thank you! I wish I could take your classes at your college !

[charlesblanton]

I noticed the missing centerline dimension in the top view, and that you need to show those hidden lines in right side view...Had my eyelid twitching the whole time the drawing was on screen lol. Very good video though and great points about unnecessary tight tolerancing. 👍

[MITRotorcraft]

Great teaching aid. Maybe mention the difference between 1st & 3rd angle projection 👍

[toddp]

We got a whole army of Justin's in my machine shop🤣

[toddp]

We had material that was similar to Delron and the dimension would change due to the thermal characteristics so over all length would be fine at the machine, but would shrink in inspection 🤣 you could use a height gage with a .0001 indicator and watch it move🤪

[capsoulgotthehits]

trying my best to learn this i just get confused ima going to replay this as many times as i can.

[TomChame]

Excellent, very interesting, thanks.

[lohikarhu]

Hi Stuart; can you tell us if/when you will have another video up?
Liking your work and production.

[arvinbaguion]

please more videos like this. need more lecture how to read blueprint

[wnebergall]

One of my not so favorite classes in college

[ndavr]

Right hand defaulted or what if left hand threads?... 11:36 / 14:35 ...Justin wants to know!

[chrisstephens]

All good info.
Just a thought, should there have been a separate tolerance for the drilled and reamed hole or are you going with the x.xxx listing?

[peirob]

Interesting video, thanks for it. However, there is a drawing error. On drawing shown at @12:00, bottom-right view, the rectangular pocket length seems equal to the part width 2.0 minus 2 times the edge recess widths 0.375 (there is a perfect alignment of vertical lines) that is 2.0 - 0, 75 = 1.25. On the top-left view this length is set to 1.00. This is not consistent. Note that this is the first time I notice something wrong in your videos that I find very pedagogical for someone not used to north American machining.

[fragjump]

Any good GD&T link video here my friends?

[vinnybambizi]

Yes, but we know the engineers are the smarter ones ;-)