Jump to content

Using Correct MMC Bonus in A Max Characteristic


---
 Share

Recommended Posts

I have a part with hundreds of holes, and I'd like to just report the worst position. However, I'm unsure of how to apply the correct MMC bonus to the Max characteristic. I have PCM, but have literally no experience with it other than basic formulas.
Link to comment
Share on other sites

Rereading this, I realize I'm not as clear as I'd like to be. I'd like to grab the size of the worst positioned hole and add the MMC bonus to the max characteristic. A prior programmer just left the tolerance to print with no MMC. But some reports will only have this max characteristic as non conforming, when it is actually in tolerance with MMC.
Link to comment
Share on other sites

Could you take your total diameter tolerance and just add it to your positional tolerance in the maximum characteristic? Example: A ±.001 diameter would gain you .002 of positional tolerance. You could then add it directly to the upper tolerance in your maximum characteristic. I run into this issue as well. Not sure if that will work for you
Link to comment
Share on other sites

Please sign in to view this quote.

You would have to calculate the difference of size to the tolerance, and to ensure you're not adding any additional modifier tolerance you have to calculate out any oversize or undersize condition. You cant just add the feature tolerance as whole value.
Link to comment
Share on other sites

 Share

×
×
  • Create New...