GD&T Lesson 3: Orientation Tolerances

preview_player
Показать описание
I discuss Parallelism, Perpendicularly and Angularity.
Рекомендации по теме
Комментарии
Автор

Your videos have really helped me. I've been Machining for 12 years and just recently I started working in a situation where it's all GD&T. We do semiconductor, defense, & aerospace mostly so you can imagine how good we need to be. I really think companies should invest in training of it's employees on this stuff. I've never seen that. Thanks!!

toddpf
Автор

Excellent stuff! I like that you are relating the inspection method to meet the GD&T call-out. MANY engineers have no clue as to how to check (inspect) what they have specified. As the department that has to make the items, if the drawing is not clear it goes right back to engineering for correction.. It is NOT supposed to be a manufacturing competition or guessing game. If we make bad parts as a result of poor drawing dimensional construction it is on Design Engineering. This is why all new engineers need to be on the shopfloor to "feel the pain" of bad design engineering. Companies need to develop engineers better. They don't understand the money that is lost concerning these issues.

johnkeefe
Автор

Very concise teaching. Good job! If your audience forgets your instructions, they deserve to pay for the generated scrap.

Virxo
Автор

The explanation provided is exceptionally clear and concise. Having reviewed numerous GD&T books and resources, I confidently affirm that this is the most valuable resource available. Thank you for sharing!

rohitbhosle
Автор

These videos have helped me in my day to day job function. Thank you! Keep them coming!
Maybe more videos of inspection methods?
Can’t wait to see all your other videos!

carlospineda
Автор

Fantastic content. Been trying to learn GD&T through a course but I find your videos more helpful than the course! Thank you!

YashSamant-bdrz
Автор

If I had a cylinder whose OD is controlled by perpendicularity to datum A (a flat end of the cylinder) and whose ID is controlled by a RFS position, what would be the minimum/maximum wall thickness of the cylinder wall possible? Would perpendicularity factor into the all wall thickness at all? I know it changes the VC of the cylinder in this case.

warbydeception
Автор

Absolutely fantastic the way you are explaining!!!

gopal
Автор

thank you for these videos. you do a great job explaining the concept.

justinfoto
Автор

My question is if Datum plane is not perfect (ex .01 flatness), how we can check the parallelism in this case? Thank you.

hoangvuanhnguyen
Автор

HI! Thanks for the explanation. Is it possible for you to elaboarte on the connecting rod video?
If the plane A is the face of rod, shouldnt B be made by 2 points? By being signaled as the axis of the right hole, you only get B datum when you find C, that is dependant on B because it has a pos. tolerance to A and B...

andre-moto
Автор

When doing the related actual mating envelope, how does the chamfer on the pin in your example come into play? It seems the RAME would be smaller when hitting the corner of the chamfer on the pin. Should the RAME be where it would hit the theoretical point of the pin, and not the chamfer?

marshallhulbert
Автор

Thanks for videos. It helps me a lot. I have a question about perpendicularity. I know the idea of the perpendicularity to two datum but how can we measure one feature's perpendicularity to two datums on cmm if both datums are perpendicular to the feautre.

emincalk
Автор

Hi Dean, So here in the fig 14:48, rule 1 viloates as the VC envelope is great than the MMC envelope? Could you please help me to understand the case to avoid confusions

devathatejovenkatakumar
Автор

Thanks so much for these videos. They're great!

georgehooper
Автор

Excellent tutorial, thanks a lot, professor.

harwellmejia
Автор

Hey prof, i finally understand the criticality of ref A. I just assumed that was minor formality. if u inspected a hole in a plate by "dropping" the fattest pin gage. it slides down u hear it click. i might assume "pass" for perpendicularity. However, i just assumed pin fell straight(perpend...) down and landed "square, flush" to the table surface. Fail x Fail. So i would make this. A gauge pin with a perpend base or tight washer on end ( like a mushroom head). Drop in and see and feel for, "flush n square" contact. Ofcourse, the gage base must touch the "A" side of surface.

trexinvert
Автор

@6.33 why material conditions can not apply here?

charitharanwala
Автор

Thanks for the detailed explanation. Can you please help me to understand the surface interpretation concept?

yogarajsekar
Автор

Hi Mr Odell, I have a question about parallelism. Can I use a micrometer, zero at 1 point then go over the entire surface to check a deviation for the parallelism?

HungNguyen-qvqn