• Is there a way to subtract value from the PDMS computed bolt length?

    actual blt length = 21mm
    PDMS output = 300mm
    Client request output = 290mm

    [COLOR="silver"]- - - Updated - - -[/COLOR]

    sorry typo error;


    actual blt length = 291mm
  • I assume this is using new bolting method.

    AFAIK there is no control for the rounding of bolt length calculation, as it will always round up to the nearest bigger value in your bolt table.

    I think you can play with the thickness of the gasket, use dataset for its default thickness value. then you can subtract the desparam from the thickness of the gasket to get the desired bolt length.


    Cheers,
    Edgar
  • if this is only for specific items, you may use different set f bolts and use the BSEL option but, if it is general you must confirm all bolt items as it is calculated the same by PDMS. This is a little tricky if you don't know how BOLT is calculated. I think you will play with the XTRALENGTH attribute here for example;

    assuming that the Blength attribute is incremented by 10, so you must have calculation value of 281 to 290 (to have a 290 output) so just subtract 1 from your Xtralength so you will have a calculation value of 290 which I think PDMS will not round it up to 300.

    but i think it is better to have the bolt length table from client so you can apply their calculation in the system.
  • [QUOTE=zion;106313]I assume this is using new bolting method.

    AFAIK there is no control for the rounding of bolt length calculation, as it will always round up to the nearest bigger value in your bolt table.

    I think you can play with the thickness of the gasket, use dataset for its default thickness value. then you can subtract the desparam from the thickness of the gasket to get the desired bolt length.


    Cheers,
    Edgar

    this is to avoid adding another SPCO of the same gasket just with a different thickness, as it may cause issues with the material list in your isos.