GD&T Basics - Flatness

[@mskaulgud1]

Excellent description for the Flatness feature and information associated with it.🤩

[@IsabelR3343]

I've learned more from these videos than what I learned from college. Thank you!

[@MohamedTaha-qw8he]

Me too❤💯👷🏻‍♂️

[@TianyouZhao-h1e]

thanks for your sharing! Really thorough explanation

[@adamsikorski9897]

I had so many questions about not just flatness but GD&T from watching other videos and this video took care of all of them. Absolutely amazing! Thank you so much!

[@maryamgoli-x3w]

Thanks a lot. very useful training. god bless you.

[@jasperamsing]

Hey thanks for this explanation! Question 8:23: Is there a difference for the manufactured part to inspect if you: 1) Have Datum A on the surface (like in the video), or if you put: 2) Datum A onto the flatness callout itself, and not on the surface? Does it matter or is it actually the same? Thanks :)

[@Gdandtbasics]

Great question, we get that one alot! The interpretation is the same regardless if you attach the datum feature symbol directly to the FCF or the surface.

[@shankar554]

Bro this is superb presentation. On similar high quality as to how Mark Foster teaches. Appreciated!!

[@Gdandtbasics]

Wow, thanks! Glad it was helpful

[@jasonsalazar5217]

you should definelty make more videos about basic gd&t. like virtual condition and mmc / lmc. I'm 31 working as a manufacturing engineer and I WISH I knew this back in college when I was going for aerospace engineering. keep it up!!

[@cooldude91062]

Nice explaination. Kindly upload more videos related to all GD&T features that you mentioned about showing them in other videos

[@Amrit99288]

very nice presentation, could you please upload the video "flatness applied to a feature of size". many thanks in advance.

[@beoptimistic5853]

kzbin.info/www/bejne/joKsk6FobMmCoKc 💐💐👍👍

[@jaylee7485]

I am just wondering about 15:10 part 40+_ 0.500 is not correct I think that correct is 40+_0.05 Right?

[@zaidpatel7312]

Very very nicely explained. Awesome. Keep it up 👍👍👍👍

[@PrasanthNivi]

Got a clear view of flatness

[@beoptimistic5853]

kzbin.info/www/bejne/joKsk6FobMmCoKc💐💐👍👍

[@jobinkappil]

Say the hieght of a block is .505 upper and .495 Lower. flatness.003 can one side of the block measure .505 other end .495 and still be flat by .003

[@Moltimer5050]

abseloutly amazing

[@chakitmudgal9863]

Is straightness (axis under M) depiction correct one in the leftmost picture, I mean FCF pointing towards surface not towards extension line, like in Flatness under Median plane M

[@chrisreid8298]

I have a part that is a spacer plate sandwiched between two flat plates. I dont care how thick it is. +- .0.5 mm would be fine but i want it to be flat. I need to ensure that the plate is flat +-0.1 mm after it is bolted between the plates. The problem is the plastic bows so using a flatness callout of 0.1 is difficult and expensive. How can i communicate what I need on my drawing?

[@Gdandtbasics]

Check out the last half of this video here. kzbin.info/www/bejne/nH_WdWyOed9nmLs The flatness he shows on the bottom and the parallelism on the top will restrict the over all form of you flat plate, however still allow you to have a really loose size tolerance.

[@davidnguyen2246]

Can you make up an assembly and show me how to calculate the allowable tolerances?

[@Gdandtbasics]

Hello David, Thank you for your comment. If you are seeking some more detailed explanations and detailed reviews of specific drawings and situations, please consider joining our online courses. We review many of these items in our courses - but included with online access, as a student you will also gain access to our weekly webinars where you can interact directly with our instructors, ask questions, and provide suggestions for future webinar discussions. Check out our online course information on our website: www.gdandtbasics.com/gdt-training/ Thanks, Your GD&T Basics Team

[@ivogiev]

It would be great to also comment on how to correctly measure Flatness besides CMM. For example if you are creating plane by mounting two L-shaped supports and you have a requirement for Flatness. How to measure correctly with a straight edge and a clearance gauges, cause a lot of interpretations can be seen there?

[@abhideepsingh4484]

sir it would be great if you could explain on an actual part!

[@factkarwa391]

Hlo...please clear confusion between orientation and direction Regards

[@ajaysinghbisht8290]

Please make another video on gd&t and cmm.

[@pratikbarad626]

How can measure Flatness when it given with Dimensions.. Please explain or suggest me other videos .. I'm confuse on it

[@MM-vs4dw]

What is the rule #1

[@JustenHarper]

kzbin.info/www/bejne/d6q2dKKkqc2se68 "You can never go over the size dimensions of the part (Rule #1 of GD&T), unless you are using independency, or are using flatness as a feature of size."

[@HealthFoodYoga]

Good video, what about next symbols videos

[@sachinbr7262]

what is #RULE-1 , Can anyone please explain it to me?????

[@TomOtero1984]

Rule 1 states: “Where only a tolerance of size is specified, the limits of size of an individual feature prescribe the extent to which variations in its form - as well as in its size- are allowed.”

[@stnirauto]

u made my day.Tysm.

[@manojv2840]

If two faces are parallel then can we say that they are having flatness?

[@ginotacobell3098]

Yes but if it requires so otherwise it costs $