Pattern Tolerances

Pattern Tolerances

[@williamlee7371]

Such a useful tool, in theory it gives the hole pattern more freedom to the datum whilst still enabling mating parts to fit in the holes but unfortunately manufacturers just look at it and charge you more because there's more GD&T.

[@kilometrekm]

1.5/2(bolt hole radius)+6.5/2(bolt circle radius)=4, which is also the radius of the cylinder. Does that mean the edges of the holes and the cylinder actually intersected?

[@proumreksmey]

Why was that 3x 0.194 +0.005 -0 dim not an angle dim?

[@thevegg3275]

Virtual condition is always the worst case condition regardless of hole or pin size. How can that be? An infiniately large hole should have a larger VC than a 1" hole. Please explain. Thx

[@carlosgarciahernandez2777]

In your second pattern example, What exactly are you measuring? A chord or and arc? Whatever you are measuring, the way how the extension lines are oriented is incorrect. Look at the fig. 1-26 of the ASME Y14.5

[@cadcamokulu]

kzbin.info/www/bejne/f327eIaaabSGpdE

[@peteraguilar7181]

question when using an insert do I use MMC for hole?

[@johnjackman2769]

Use MMC of the insert.

[@HIENTRAN-ze9ju]

If i have LMC on true position box ? Can i apply like MMC to get bonus on torrence zone?

[@jackreacher7183]

Great work man

[@sureshchinnadurai4707]

I addressed that can able to do inspection w.r.t the circumference holding by chance of 3 jaw or 4 jaw chucks. Any way i do worrying about width of this part.. thanks for this sharing..

[@gawksquad]

Well Done!

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[@raphaeledison9236]

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[@santinokameron753]

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[@079982]

If MMC on thread holes, which diameter can be calculate for tolerance zone.pitch diameter or inner holes.

[@pratapkumarmishra8297]

in that case it is mentioned in the diagram whether the tolerance condition is based on pitch dia, inner dia or outer dia