iParts with NPT and and straight threads

[tchristman]

I am trying to create a few iParts that have different internal threads. When I create the part the table seems to take the change but when I switch parts in the model from the NPT to the BSP it gives me the error below. Any advice as to haw to fix this or set it up correctly?

[tchristman]

I am trying to create a few iParts that have different internal threads. When I create the part the table seems to take the change but when I switch parts in the model from the NPT to the BSP it gives me the error below. Any advice as to haw to fix this or set it up correctly?

[Mark.Lancaster]

@tchristman

First I never liked mixing different standards or thread types in my iparts but that's my opinion.   Based on what I'm seeing it looks like your ipart table is missing dimensional stuff.  Its been a while but I would have to go back and confirm if there are items needed.  I would start there.

Also hole 4 has an association to pipe diameter and your table has no value in the column.  Which is another point to make..  All cells should have a value and never a blank cell.  Even if the cell doesn't pertain to anything for that given member just put in some fake value.

[Mark.Lancaster]

@tchristman

Not sure why you're posting 2x https://forums.autodesk.com/t5/inventor-forum/iparts-with-npt-and-and-straight-threads/td-p/7912341 about the same thing.

[jhackney1972 · Accepted solution]

As Mark has pointed out, missing required data in an iPart table usually is not allowed.  I have created two examples of iParts in Inventor 2018.  In Method 1, I have created two holes using the same point and then computed and suppressed the pipe taps as needed.  In Method 2, I have used the same hole feature and just computed or suppressed the pipe tap as needed.  It works but can get confusing, at least in my opinion.

If you do not have Inventor 2018, I have taken a screen capture of both iPart Methods and placed them here.